Celestial Bodies and Phenomena

Images of planetary surfaces and astronomical phenomena, featuring detailed textures and colors of Mercury, Jupiter's storm, and Titan.

Pluto and Charon

Rembrandt Basin -- in Color!

The Frosted Craters of Northern Spring and Southern Autumn - Barnard Crater

Hubble Views Ancient Storm in the Atmosphere of Jupiter - May, 1992

Composite of Titan Images

Colorized transmission electron micrograph of a hepatitis C virion.

P-29496C Uranuss moon

Pluto and Charon

Processing brings out Uranus' atmosphere in this image taken by NASA's Voyager 2.

France, Vauquer, Jacques, Designs for goldsmiths, Strip with two putti, Putti holding a laurel wreath with foliate scrolls and ribbons in the background., print, ornament print, prints, ornament prints, height 81 mm, width 17 mm, Work conception, French, 1621-10-11 - 1686-08-31, after a design by, 1631 - 1676, second quarter 17th century, third quarter 17th century, fourth quarter 17th century, paper, papier, engraving, engraving (printing process), print maker, printmaker, Publication (Event), Publication, publisher

Couperin le Grand

Titan's Cloud Systems

Saturn's North Temperate Belt

Engraved Scaraboid. Unknown

This Chandra image reveals, in detail, the turbulent debris created by a supernova explosion that was observed by the Danish Astronomer Tycho Brahe in the year 1572. The colors show different x-ray energies, with red, green, and blue representing low, medium, and high energies, respectively. Most likely caused by the destruction of a white dwarf star, a shock wave produced by the expanding debris is outlined by the sharp blue circular arcs of 20 million degree Celsius gas seen on the outer rim. The stellar debris, visible only by x-ray, has a temperature of about 10 million degrees, and shows up as mottled yellow, green, and red fingers of gas.

First Data from Mars Climate Sounder

Complete Veil Nebula

This image shows a portion of Amazonis Planitia. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image. Orbit Number 60757 Latitude 37.3179 Longitude 201.905 Instrument VIS Captured 2015-08-25 11 49

ISS006-E-08805 (14 December 2002) --- View of a bubble formed as a result of a Zeolite Crystal Growth (ZCG) experiment in the Destiny laboratory on the International Space Station (ISS). Expedition Six Commander Kenneth D. Bowersox used a Space Station drill to mix 12 Zeolite samples in clear tubes. Scientists on the ground watching on TV noticed bubbles in the samples. Bowersox used a modified mixing procedure to process autoclaves to isolate bubbles. He re-inserted the samples in the ZCG furnace in Express Rack 2 in the U.S. laboratory/Destiny. This experiment has shown that the bubbles could cause larger number of smaller deformed crystals to grow. Bowersox rotated the samples so that the heavier fluid was thrown to the outside while the lighter bubbles stayed on the inside.

The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image. Today's false color image shows part of Corozal Crater in Terra Cimmeria. Orbit Number 59667 Latitude -39.1635 Longitude 160.407 Instrument VIS Captured 2015-05-27 16 41

Range 660,000 kilometers (400,000 miles) Time 5 05 am PST This Voyager 1 picture of Mimas shows a large impact structure at 110 degrees W Long., located on that face of the moon which leads Mimas in its orbit. The feature, about 130 kilometers in diameter (80 miles), is more than 1/4 the diameter of the entire moon. This is a particularly interesting feature in view of its large diameter compared with the size of the satellite, and may have the largest crater diameter/satillite diameter ratio in the solar system. The crater has a raised rim and central peak, typical of large impact structures on terrestrial planets. Additional smaller craters, 15-45 kilometers in diameter, can be seen scattered across the surface, particularly alon the terminator. Mimas is one of the smaller Saturnian satellites with a low density implying its chief component is ice.

NASA's Galileo spacecraft acquired this global mosaic (right) during Galileo's third orbit on Nov. 4, 1996. The lighter bluish area in the upper latitudes is the Asgard multi-ring structure with crater Burr to the north and Tornasuk to the east.

These two images of Uranus, one in true color and the other in false color, were compiled from images returned in 1986, by the narrow-angle camera of NASA's Voyager 2.

Stone asteroid belt realistic vector illustration. Meteor, space boulder or rock, moon sphere with craters flying in weightlessness isolated icon set on transparent background, various form. Stone asteroid belt. Meteor or flying space rock

Radar Swath of Oct. 28, 2005, Titan Flyby

Today's VIS image shows part of Arabia Terra. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image. Orbit Number 60764 Latitude 36.1352 Longitude 0.199382 Instrument VIS Captured 2015-08-26 01 39

Cute astronaut floating in space in front of the moon.

This wide-angle image from NASA's Voyager 2, taken in 1989, was taken through the camera's clear filter, and was the first to show Neptune's rings in detail.

A Whale of a Crater

A mock-up of the planet Mars illuminated from the inside on a dark background. A mock-up of the planet Mars illuminated from the inside on a dark background. Copyright: xZoonar.com/Svetlanax 22589096

Cosmic images computer processed images of galaxies Copyright: xAshaxAdatia/DinodiaxPhotox

Multiple cysts on the right kidney, seen on a frontal abdominal x-ray.

The shadow of the moon Mimas has just slipped off Saturn's rings and onto the planet in this Cassini spacecraft image.

Engraved Gem. Unknown

$P-21760 C This color image of the Jovian moon Europa, which is the size of our moon, is thought to have a crust of ice perhaps 100 kilometers thick which overlies the silicate crust. The complex array of streaks indicate that the crust has been fractured and filled by materials from the interior. The lack of relief, any visible mountains or craters, on its bright limb is consistent with a thick ice crust. In contrast to its icy neighbors, Ganymede and Callisto, Europa has very few impact craters. One possible candidate is the small feature near the center of this image with radiating rays and a bright circular interior. The relative absence of features and low topography suggests the crust is young and warm a few kilometers below the surface. The tidal heating process suggested for Io also may be heating Europa's interior at a lower rate.$

Diagram showing an asteroid in orbit around the sun.

Close-up of a globe

Seen shortly after local Martian sunrise, clouds gather in the summit pit, or caldera, of Pavonis Mons, a giant volcano on Mars, in this image from the Thermal Emission Imaging System (THEMIS) on NASA's Mars Odyssey orbiter.

P-21741 BW Range 2.6 million kilometers (1.6 million miles) This picture of Io, taken by Voyager 1, shows the region of the Jovian moon which will be monitored for volcanic eruptions by Voyager 2 during the 'Io movie' sequence. The white and orange patches probably are deposits of sulphur compounds and other volcanic materials. The Voyager 2 pictures of this region will be much more detailed.

This map shows the distribution of water in the stratosphere of Jupiter as measured with the Herschel space observatory. White and cyan indicate highest concentration of water, and blue indicates lesser amounts.

This image shows a part of the Cygnus loop supernova remnant, taken by the Ultraviolet Imaging Telescope (UIT) on the Astro Observatory during the Astro-1 mission (STS-35) on December 5, 1990. Pictured is a portion of the huge Cygnus loop, an array of interstellar gas clouds that have been blasted by a 900,000 mile per hour shock wave from a prehistoric stellar explosion, which occurred about 20,000 years ago, known as supernova. With ultraviolet and x-rays, astronomers can see emissions from extremely hot gases, intense magnetic fields, and other high-energy phenomena that more faintly appear in visible and infrared light or in radio waves that are crucial to deepening the understanding of the universe. The Astro Observatory was designed to explore the universe by observing and measuring the ultraviolet radiation from celestial objects. Three instruments make up the Astro Observatory The Hopkins Ultraviolet Telescope (HUT), the Ultraviolet Imaging Telescope (UIT), and the Wisconsin Ul

This sequence of enhanced-color images shows how quickly the viewing geometry changes for NASA's Juno spacecraft as it swoops by Jupiter. The images were obtained by JunoCam. Once every 53 days the Juno spacecraft swings close to Jupiter, speeding over its clouds. In just two hours, the spacecraft travels from a perch over Jupiter's north pole through its closest approach (perijove), then passes over the south pole on its way back out. This sequence shows 14 enhanced-color images. The first image on the left shows the entire half-lit globe of Jupiter, with the north pole approximately in the center. As the spacecraft gets closer to Jupiter, the horizon moves in and the range of visible latitudes shrinks. The third and fourth images in this sequence show the north polar region rotating away from our view while a band of wavy clouds at northern mid-latitudes comes into view. By the fifth image of the sequence the band of turbulent clouds is nicely centered in the image. The seventh and e

Total eclipse of the sun - Athens, Greece - June 19th 1936. Date: 1936

Unusual Volcanic Pyroclastic Deposits on Io

Geologic Landforms on Io (Area 1)

P-29519BW Range 500,000 kilometers (300,000 miles) Several craters are seen on the surface of 1986U1, one of the several small moons of Uranus discovered by Voyager 2. This single image, a clear-filtered, narrow-angle picture with a resolution of about 10 km (6 mi), is the only closeup the spacecraft obtained of any of the new moons. The moon was found December 30, 1985; it was the first and largest of nine satellites discovered by the spacecraft's cameras. This image shows 1986U1 to be a dark, nearly spherical object, with a diameter of about 150 km (90 mi); the dark surface reflects only 7 percent of the incident light. The picture was inserted into the Voyager encounter sequence late in its development.This image has had a complex history, having been recorded on the spacecraft tape recorder and first played back during the late afternoon of its recording. An antenna-pointing problem at one of the Austrailian tracking stations led to the loss of the data, so the image had to be retr

Mars, computer illustration.

Pioneer Venus Occp. Image 00118 Venus

P-29505 Moon Voyager 2 flyby of Uranus' moons

Range 2.77 million miles (1.72 million miles) resolution 51 km. (32 mi.) P-29495C This Voyager 2 photograph of the outermost Uranian satellite, Oberon is a computer reconstruction of three frames , exposed through the narrow angle camera's blue, green, and orange filters. the grayness or apparent lack of strong color is a distinctive characteristic of the satellites and the rings of Uranus and can serve as one indicator of the possible composition of the satellites' surfaces. Oberon has a diameter of about 1,600 km. (1,000 mi.) and orbits the planet at a radial distance of 586,000 km. (364,000 mi.). Oberon's surface displays areas of lighter and darker material, probably associated in part with impact craters formed during its long exposure to bombardment by cosmic debris. Thr resolution of this particular image is not sufficient, however, to reveal with confidece the nature of these features.

S74-15697 (17 Jan. 1974) --- The solar corona and a solar prominence as seen through the White Light Coronograph, Skylab Experiment S052, on Jan. 17, 1974. This view was reproduced from a television transmission made by a TV camera aboard the Skylab space station in Earth orbit. The bright spot is a burn in the vidicon. The solar corona is the halo around the sun which is normally visible only at the time of solar eclipse by the moon. The Skylab coronography uses an externally-mounted disk system which occults the brilliant solar surface while allowing the fainter radiation of the corona to enter an annulus and be photographed. A mirror system allows either TV viewing of the corona or photographic recording of the image.

The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. This false color image from NASA's 2001 Mars Odyssey spacecraft shows part of Terra Sabaea.

This pair of false-color images, made from data obtained by NASA's Cassini spacecraft, shows clouds covering parts of Saturn's moon Titan in yellow, while Titan's hazy atmosphere appears magenta.

This montage of views from NASA's Cassini spacecraft shows three of Saturn's small ring moons Atlas, Daphnis and Pan at the same scale for ease of comparison. Two differences between Atlas and Pan are obvious in this montage. Pan's equatorial band is much thinner and more sharply defined, and the central mass of Atlas (the part underneath the smooth equatorial band) appears to be smaller than that of Pan. Images of Atlas and Pan taken using infrared, green and ultraviolet spectral filters were combined to create enhanced-color views, which highlight subtle color differences across the moons' surfaces at wavelengths not visible to human eyes. (The Daphnis image was colored using the same green filter image for all three color channels, adjusted to have a realistic appearance next to the other two moons.) All of these images were taken using the Cassini spacecraft narrow-angle camera. The images of Atlas were acquired on April 12, 2017, at a distance of 10,000 miles (16,000 kilometers) a

The sun of the galaxy

NGC 6960, The Western Veil Nebula in Cygnus.

P-34665 This false color Voyager 2 image of Neptune's satellite Triton, is a composite of three images taken through ultraviolet, green, and viloet filters. The smallest resolvable features are about 47 km., or 29 miles accross. Mottling in the bright southern hemisphere may be the result of topography, if Triton's crust is predominently water ice, which is rigid at Triton's surface temperature. Alternatively, the mottling could be due to markings on a smooth surface, if the crust is composed of nitrogen, carbon monoxide, or methane ice, since they are soft at the same temperature.

This false-color image obtained by NASA's Magellan spacecraft shows the volcano Sapas Mons, which is located in the broad equatorial rise called Atla Regio.

. Soffen Crater - False Color. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image. Today's false color image shows part of Terra Cimmeria. Soffen Crater is at the top of the image, and is 58 km (36 miles) in diameter. The THEMIS VIS camera is capable of capturing color images of the Martian surface using five different color filters. In this mode of operation, the spatial resolution and coverage of the image must be reduced to accommodate the additional data volume produced from using multiple filters. To make a color image, three of the five filter images (each in grayscale) are selected. Each is contrast enhanced and then converted to a red, green, or blue intensity image. These three images are then combined to produce a full color, single image. Because the THEMIS color filters don't

Spirit's View on Sol 93 (vertical)

. Ice Clouds - False Color. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image. Today's false color image shows high altitude ice clouds. The blue and yellow bands in this image are not image artifacts, but are the traces of ice rich clouds. Each framelet of the image is collected at slightly different times. For the unchanging surface, this works fine. Optically thick dust clouds are usually close to the surface so any motion of the clouds is not dramatic as seen from the altitude of the Odyssey spacecraft. Transparent, and high altitude clouds are harder to discern in single band images - but are easy to discern in false color images - the clouds are in slightly different positions as each filter is collected. The clouds in this image are in the Tharsis region. Clouds are common there i

Red blood cell, computer artwork.

AS16-122-19592 (16-27 April 1972) --- An oblique view of the Border Sea area on the lunar nearside, as photographed from the Apollo 16 spacecraft in lunar orbit. Mare Marginus is at the left edge of the picture. This view is looking generally west by northwest. Goddard Crater is located at lower left. A portion of the Ibn Yunus Crater can be seen in the lower left corner adjoining the southeastern edge of Goddard. The Al-Biruni Crater is at lower right edge. The Hubble Crater is at right center edge.

Scientists, using cameras aboard NASA's Lunar Reconnaissance Orbiter (LRO), have created the largest high resolution mosaic of our moon's north polar region.

Range 5.7 million miles(9.2 million kilometers) Image shows Jupiter's Great Red Spot and surroundings. Cloud detail as small as 100 miles (160 kilometers) across can be seen. Colorful, wavy cloud pattern left of the Red Spot is a region of complex and variable wave motion.

P-34764 Voyager 2 obtained this high resolution color image of Neptune's large satellite Triton during its close flyby. Approximately a dozen individual images were combined to produce this comprehensive view of the Neptune-facing hemisphere of Triton. Fine detail is provided by high resolution, clear-filter images, with color information added from lower resolution frames. The large south polar cap at the bottom of the image is highly refective and slightly pink in color , and may consist of a slowly evaporating layer of nitrogen ice deposited during the previous winter. From the ragged edge of the polar cap northward the satellite's face is generously darker and redder in color. This coloring may be produced by the action of ultraviolet light and magnetospheric radiation upon methane in the atmosphere and surface. Running across this darker region , approximately parallel to the edge of the polar cap, is a band of brighter white material that is almost bluish in color. The underlying

This image obtained by NASA's Cassini spacecraft, shows the clouds of a hurricane-like storm, which circulate around the north pole of Saturn out to 88.5 degrees north latitude. The clouds at the very center are spinning rapidly.

Buried Ice

A Toast to Dear Old Poe

The Moon. Artist: John Adams Whipple (American, 1822-1891); James Wallace Black (American, 1825-1896). Dimensions: 21 x 15.7 cm (8 1/4 x 6 3/16 in. ). Date: 1857-60.In December 1849, John Whipple made his first photograph of the moon, a daguerreotype taken through the telescope at the Harvard College Observatory in Cambridge. Although he did not make the first lunar photograph in America, in terms of accuracy and aesthetics Whipple produced what were internationally recognized as the most sublime photographs of the moon. This study, made with his partner James Black, recalls the maxim in astronomy: the more clearly one can see an object in space, the more beautiful it looks. Museum: Metropolitan Museum of Art, New York, USA.

P-21746 BW Range 390,000 kilometers (245,000 miles) This photomosaic of Callisto is composed of nine frames. The impact crater distribution is very uniform across the disk. Notable are the very bright rayed craters that probably are very young. Near the limb is a giant probable impact structure. Several large structures were discovered by Voyager 1. This one is smaller than the largest one found by Voyager 1 but is more clearly shown. About 15 concentric rings surround the bright central spot. Many hundreds of moderate sized impacts are also seen, a few with bright radial ray patterns. The limb is very smooth confirming that no high topography has been seen on the satellite, and observation consistent with its icy composition.

Photo by Voyager 2 (JPL) During August 16 and 17, 1989, the Voyager 2 narrow-angle camera was used to photograph Neptune almost continuously, recording approximately two and one-half rotations of the planet. These images represent the most complete set of full disk Neptune images that the spacecraft will acquire. This picture from the sequence shows two of the four cloud features which have been tracked by the Voyager cameras during the past two months. The large dark oval near the western limb (the left edge) is at a latitude of 22 degrees south and circuits Neptune every 18.3 hours. The bright clouds immediately to the south and east of this oval are seen to substantially change their appearances in periods as short as four hours. The second dark spot, at 54 degrees south latitude near the terminator (lower right edge), circuits Neptune every 16.1 hours. This image has been processed to enchance the visibility of small features, at some sacrifice of color fidelity. The Voyager Missio

Three full-disk color views of Jupiter's volcanic moon Io as seen by NASA's Galileo spacecraft.

This image shows the dusty disk of planetary material surrounding the young star HD 141569, located 380 light-years away from Earth.

This VIS image shows parts of Crommelin and Firsoff Craters. Both craters contain large mounds of layered materials on the crater floor. This material was deposited after the craters formed and may have been created by the same processes. These craters are located near Meridiani Planum. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image. Orbit Number 61064 Latitude 3.88172 Longitude 350.316 Instrument VIS Captured 2015-09-19 18 22

Today's image shows part of Mutch Crater in Xanthe Terra. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image. Orbit Number 60816 Latitude -0.290036 Longitude 305.338 Instrument VIS Captured 2015-08-30 08 13

Spindle whorl 5th-3rd millennium B.C. Iran This ceramic spindle whorl was excavated in 1937 at a prehistoric site in the vicinity of Nishapur in northeastern Iran. While Nishapur itself was founded by the Sasanian king Shapur I (reigned ca. A.D. 241-272), this whorl shows that human habitation there goes back to the prehistoric period. Furthermore, the prehistoric pottery from Nishapur has close affinities with ceramic materials from Central Asia rather than with contemporary sites in Iran, meaning that in this period its inhabitants were likely culturally linked to their neighbors to the east. At the same time, Nishapurs location on what later became known as the Great Khorasan Road suggests that it was part of the trade network that facilitated the import of precious stones such as lapis lazuli, carnelian and turquoise from Central Asia to Mesopotamia.Spindle whorls were used to make thread. A dowel was inserted through the hole, to which plant fibers or wool were attached. The whor

Three full-disk color views of Jupiter's volcanic moon Io as seen by NASA's Galileo spacecraft.

A photograph of the back of the eye, or retina, of an AIDS patient with chorioretinitis, which is an inflammation of the retina and choroid (thin pigmented vascular coat of the eye).

A portion of the eastern edge of Alpha Regio is displayed in this three-dimensional perspective view of the surface of Venus from NASA's Magellan spacecraft.

This image of haze layers above Pluto's limb was taken by NASA's New Horizons spacecraft. About 20 haze layers are seen.

Treponema pallidum. Photomicrograph of Treponema pallidum. This spirochaete bacterium is the agent of syphilis.

This false color image shows pits on the south polar cap. The terrain has the appearance of a slice of swiss cheese, giving rise to the informal name. This is thought that these depressions form by sublimation. Sublimation is the process where the solid changes directly into a gas phase - ie. no fluid form in between the solid and gaseous forms. Sublimation occurs due to the arrival of the sun in the spring and summer seasons at the pole. These pits have been shown to grow in size over a short time period, with the surface changing over the course of years rather than thousands of years. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image. Orbit Number 65383 Latitude -86.7696 Longitude 354.379 Instrument VIS Captured 2016-09-09 11 18

Moon As Seen By NIMS

The THEMIS VIS camera contains 5 filters. Data from different filters can be combined in many ways to create a false color image. The linear features in this image from NASA's 2001 Mars Odyssey spacecraft are the graben called Sirenum Fossae.

Greco-Roman Intaglios. In the course of the 2nd and 1st centuries BC, the Hellenistic kingdoms were gradually absorbed into the spreading area of Roman domination. With the intaglios of this time it is rarely possible to distinguish between Greek and Roman manufacture or to determine precise dates or origins. Their wide range of styles and subjects demonstrates the eclecticism of the ages: while some seem deliberately archaising or classic, others appear to allude to contemporary events.

Radar Bright Deposits in Mercury's Polar Craters

These images, from Dawn's visible and infrared mapping spectrometer (VIR), highlight two regions on Ceres containing bright spots. The top images show a region scientists have labeled '1' while the region labeled '5' is shown in the bottom images.

Saturn's North Pole Hot Spot and Hexagon

This image, made from data obtained by NASA's Dawn spacecraft, shows the mineral distribution in the southern hemisphere of the giant asteroid Vesta.

Andromeda Galaxy (ref; P-26394C)

P-34666 This false color photograph of Neptune was reconstructed from two images taken by Voyager 2's wide angle camera, through the orange and two different methane filters. Objects that deep in the atmosphere are blue, while those at higher altitudes are white. Light at methane wavelengths is mostly absorbed in the deeper atmosphere. The bright, white feature is a high altitude cloud just south of the Great dark Spot. The hard, sharp inner boundary within the bright cloud is an artifact of computer processing on Earth. Other, smaller clouds associated with the Great Dark Spot are white or pink, and are also at high altitudes. Neptune's limb looks reddish because Voyager 2 is viewing it tangentially, and the sunlight is scattered back to space before it can be absorbed by methane. A long, narrow band of high-altitude clouds near the top of the image is located at 25 degrees north latitude, and faint hazes mark the equator and polor regions

This view from NASA's Cassini spacecraft showcases some of the amazingly detailed structure of Saturn's rings. The image was taken in visible light with the Cassini spacecraft wide-angle camera on Sept. 24, 2016.

This VIS image is located in the center of Syrtis Major Planum. At the top of the image is Nili Patera, a volcanic summit. The sand dunes located near Nili Patera are visible on the left side of the image. The bottom of the image is just west of Meroe Patera. Dunes located between Nili and Meroe are visible towards the bottom of the image. Winds in the region have created the dunes, but also many windstreaks on the downward side of craters in the image. Wind streaks indicate the direction of the wind. In this region the winds are blowing from east to west. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image. Orbit Number 62072 Latitude 7.99408 Longitude 67.5512 Instrument VIS Captured 2015-12-11 18 39

Basketball, X-ray

Document Sealing ca. 1390-1353 B.C. New Kingdom. Document Sealing. ca. 1390-1353 B.C.. Mud. New Kingdom. From Egypt, Upper Egypt, Thebes, Malqata, King's Palace, West magazine, MMA excavations, 1910-12. Dynasty 18

Cutaway views of the possible internal structures of the Galilean satellites. Ganymede is at the lower left, Callisto at the lower right, Io on the upper left, and Europa on the upper right.

NASA's Cassini spacecraft looks toward the night side of Saturn's moon Titan in a view that highlights the extended, hazy nature of the moon's atmosphere. During its long mission at Saturn, Cassini has frequently observed Titan at viewing angles like this, where the atmosphere is backlit by the Sun, in order to make visible the structure of the hazes. Titan's high-altitude haze layer appears blue here, whereas the main atmospheric haze is orange. The difference in color could be due to particle sizes in the haze. The blue haze likely consists of smaller particles than the orange haze. Images taken using red, green and blue spectral filters were combined to create this natural-color view. The image was taken with the Cassini spacecraft narrow-angle camera on May 29, 2017. The view was acquired at a distance of approximately 1.2 million miles (2 million kilometers) from Titan. Image scale is 5 miles (9 kilometers) per pixel.

This composite includes the four largest moons of Jupiter which are known as the Galilean satellites. Shown from left to right in order of increasing distance from Jupiter, Io is closest, followed by Europa, Ganymede, and Callisto. Galileo.

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