Sentences with phrase «ago by astronauts»

Thanks to the new Advanced Camera for Surveys, installed 2 years ago by astronauts during the space shuttle's last servicing mission to Hubble, the telescope can now detect those ancient objects.

Not exact matches

Analysis of a relatively young rock collected by Apollo astronauts reveals the moon had a weak magnetic field until 1 billion to 2.5 billion years ago, at least a billion years later than previous data showed.

JPL research scientist James Williams made the new studies using an old tool: a set of silica reflectors left on the surface of the moon by Apollo astronauts more than 30 years ago.

Beyond low Earth orbit, the Lunar Atmosphere and Dust Experiment (LADEE) will, among other things, attempt to discover the cause of a faint glow witnessed above the moon's surface by the Apollo astronauts more than 40 years ago.

Forty years ago today, the Apollo 8 astronauts, the first humans to orbit the Moon, were taken by surprise.

Nor, apparently, did Mitrovica see the open letter signed two weeks ago by 49 former employees of NASA — including seven Apollo astronauts and two former directors of the Johnson Space Center.