NASA troubleshoots Lucy following launch, after discovering a solar array didn't deploy successfully. Lucy's teams worked together to come up with a solution.
A new study shows that the subsurface ocean on Enceladus is less salty than oceans on Earth. This bolsters the chances of Enceladus' ocean supporting life.
Scientists announced that moon caves, shaded pits and lava tubes have locations where temperatures hover around a comfy 63 degrees Fahrenheit (17 degrees C).
ESA's Mars Express orbiter has taken some stunning new images of Mars' Grand Canyon, Valles Marineris. It is the largest canyon system in the solar system.