Space exploration and travel
To researchers' surprise, Comet 67P/Churyumov–Gerasimenko has ice that's fluffier than freshly fallen snow.
The new findings come after more than 10 years of observation.
Researchers have developed unique gaits for rovers to prevent them from getting stuck in deep sand or soil.
The space agency’s InSight lander has detected hundreds of marsquakes since arriving on the red planet about 15 months ago.
Upcoming cool science stories for 2020.
New design is able to stabilize itself.