The only other planet in the solar system to have such structures, called 'penitentes', is Earth.
Lucy will visit six of Jupiter’s Trojan asteroids, while Psyche will aim for the exposed, metal-rich core of an ancient protoplanet.
Researcher discover evidence of in-falling planets by observing large amounts of lithium and other metals in stellar atmosphere.
Like a majestic alien eagle.
“We are extremely happy and proud to see that all the instruments are working so well in the Mars environment.”
Why Mercury may have lost nine miles off its waistline over the last four billion years.
Giving Pluto some more company.
Even if you never make it Mars, here's some cool wallpaper.
It’s the only other planet in our solar system that we know is tectonically active.
Scientists think they saw vapour plumes spewing from its surface.