Image of the Day: A Mass of Viscous Flow Features
Viscous, lobate flow features are commonly found at the bases of slopes in the mid-latitudes of Mars, and are often associated with gullies. These features are bound by ridges that resemble terrestrial More...
Image of the Day: Space Station Flight Over Venice
Expedition 50 Flight Engineer Thomas Pesquet of the European Space Agency shared this photograph from the International Space Station on Feb. 14, 2017, writing, “Venice, city of gondoliers and More...
Image of the Day: Tectonically Active Planet Mercury
It’s small, it’s hot, and it’s shrinking. New research suggests that Mercury is contracting even today, joining Earth as a tectonically active planet. Images obtained by NASA reveal previously undetected More...
Image of the Day: Daphnis Up Close
The wavemaker moon, Daphnis, is featured in this view, taken as NASA’s Cassini spacecraft made one of its ring-grazing passes over the outer edges of Saturn’s rings on Jan. 16, 2017. This More...
Image of the Day: Possible Signs of Ancient Drying in Martian Rock
A grid of small polygons on the Martian rock surface near the right edge of this view may have originated as cracks in drying mud more than 3 billion years ago. Multiple images from the Mast Camera More...
Image of the Day: Jupiterrise
This image of the sunlit part of Jupiter and its swirling atmosphere was created by a citizen scientist (Alex Mai) using data from Juno’s JunoCam instrument. JunoCam’s raw images are available More...
Image of the Day: Well-Preserved Impact Ejecta on Mars
This image of a well-preserved unnamed elliptical crater in Terra Sabaea, is illustrative of the complexity of ejecta deposits forming as a by-product of the impact process that shapes much More...
Image of the Day: Color Variations on Mount Sharp, Mars
The foreground of this scene from the Mast Camera (Mastcam) on NASA’s Curiosity Mars rover shows purple-hued rocks near the rover’s late-2016 location on lower Mount Sharp. The scene’s More...
Image of the Day: Hubble Spins a Web Into a Giant Red Spider Nebula
Huge waves are sculpted in this two-lobed nebula some 3000 light-years away in the constellation of Sagittarius. This warm planetary nebula harbours one of the hottest stars known and its powerful stellar winds More...
Image of the Day: Astronomers Discover Powerful Cosmic Double Whammy
Astronomers have discovered what happens when the eruption from a supermassive black hole is swept up by the collision and merger of two galaxy clusters. This composite image contains X-rays from Chandra More...