这幅名为大瑟提斯高原 （Syrtis Major）的景象，来自NASA火星勘测轨道器（Mars Reconnaissance Orbiter，MRO）上 HiRISE相机 ...

What everyone agrees on is that NASA needs a new spacecraft capable of relaying communications from Mars to Earth. This issue has become especially acute with the recent loss of NASA’s MAVEN ...

A Mars spacecraft has now been AWOL for more than a month. But NASA hasn't given up hope of restoring contact with the MAVEN ...

MAVEN was built to last in orbit until 2030 — that's not looking likely anymore.

Add Yahoo as a preferred source to see more of our stories on Google. One of NASA’s workhorse spacecraft in orbit around Mars has fallen silent, leaving agency personnel scrambling to troubleshoot the ...

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical ...