
NASA plans a launch to Titan or a return to comet 67P in 2025
21 December 2017
In 2025 NASA will either launch a probe to bring back samples from comet 67P, previously visited by Rosetta, or send a drone-like craft to Saturn's moon Titan

21 December 2017
In 2025 NASA will either launch a probe to bring back samples from comet 67P, previously visited by Rosetta, or send a drone-like craft to Saturn's moon Titan

20 December 2017
We used to think Mars lost most of its water to space when its atmosphere blew away. Instead, the water may have been sucked up by rocks that sunk underground