Early results from China's historic 1st landing on the moon's far side. Chinese scientists have used in situ data from a far side crater to identify materials on the moon's surface that originated deeper inside the moon.
A new study shows that Mars has a unique water vapor cycle that occurs only once about every 2 years. The cycle might help explain how Mars lost most of its water.
A new "survival guide for exoplanets" outlines how different kinds of planets fare when their host star dies. It suggests the smallest rocky worlds are the most likely to escape annihilation.
Dwarf planet Haumea orbits in Pluto's realm of the solar system. It's the most distant little world known to have a ring. Scientists in Brazil have new insights on how Haumea's ring maintains its nearly perfect circular shape.
The moon is shrinking as its interior cools. As it shrinks, its crust wrinkles and cracks, forming "thrust faults" that, according to a new analysis, generate moonquakes.
"We are go for launch!" said Planetary Society CEO Bill Nye. Funded by space enthusiasts, LightSail 2 aims to accomplish the 1st-ever, controlled solar sail flight in Earth orbit next month.