A natural-color image of Rhea, Saturn's second-largest moon, captured by the Cassini spacecraft. The image highlights Rhea's heavily cratered leading hemisphere, with visible light-colored wisps, possibly long braided fractures, across its surface. Rhea's tidally locked rotation means one side always faces Saturn.

Astronomy Picture from 15/02/2005

Saturn's Moon Rhea from Cassini

Source: https://apod.nasa.gov/apod/ap050215.html


#Rhea #SaturnMoon #Cassini #SpaceExploration #PlanetaryScience #IcyMoon #CrateredSurface #SolarSystem #Astronomy #Cosmos #SpaceImage #NaturalColor #Saturn

High-resolution image of Deimos, the smaller of Mars' two moons, taken by the Viking 2 orbiter in 1977 from a distance of 18 miles. The image reveals a heavily cratered surface, with details as small as 10 feet across visible, showcasing rocks and regolith. This is one of the most detailed pictures ever taken of a celestial body by an orbiting spacecraft.

Astronomy Picture from 19/09/1998

18 Miles From Deimos

Source: https://apod.nasa.gov/apod/ap980919.html


#MarsMoon #Deimos #Viking2 #SpaceExploration #PlanetaryScience #Astronomy #Cosmology #CelestialBodies #SpaceImage #MarsExploration #Regolith #CrateredSurface #PotatoMoon #AmazingSpace

Close-up view of Rhea, Saturn's second-largest moon, captured by Voyager 1 in 1980. The image showcases Rhea's heavily cratered surface, a result of its tidally locked rotation, exposing one side to more impacts than the other. The surface is predominantly water ice with a rocky core. Cassini's arrival at Saturn in 2004 provided further study.

Astronomy Picture from 08/06/2003

Rhea: Saturn's Second Largest Moon

Source: https://apod.nasa.gov/apod/ap030608.html


#Rhea #SaturnMoon #Voyager1 #SpaceExploration #CrateredSurface #CelestialBody #PlanetaryScience #AstronomyPicture #NASA #OuterSpace #MoonsOfSaturn #SpaceImage #TidallyLocked

A close-up view of Rhea, Saturn's second-largest moon, captured by Voyager 1 in 1980. The image showcases Rhea's heavily cratered leading hemisphere, highlighting its composition of water ice and a small rocky core. The contrasting crater densities on Rhea’s leading and trailing sides are a result of its tidally locked rotation around Saturn.

Astronomy Picture from 05/12/1999

Rhea: Saturn's Second Largest Moon

Source: https://apod.nasa.gov/apod/ap991205.html


#Rhea #SaturnMoon #Voyager1 #SpaceExploration #PlanetaryScience #CrateredSurface #IcyMoon #Astronomy #Cosmology #MoonsOfSaturn

A grayscale image mosaic of Mercury's western limb, captured by the MESSENGER spacecraft. The image shows a contrast between old, heavily cratered terrain and smoother impact basins, possibly flooded by ancient lava flows. The smoother areas resemble the lunar maria. This highlights the volcanic activity in Mercury's past.

Astronomy Picture from 27/05/2009

Volcanic Terrain on Mercury

Source: https://apod.nasa.gov/apod/ap090527.html


#MercuryMESSENGER #PlanetaryScience #SpaceExploration #LavaFloes #CrateredSurface #InnerSolarSystem #SmoothCraters #Astrogeology #SpaceImage #NASA