A few more spacey links

-- Incredible. They recently fired up Voyager 1's trajectory thrusters, and they worked perfectly. It took over 39 hours after they first broadcast the signal to hear back from the spacecraft that it was a success because it's 19 and a half light hours away. More here.

-- Andy Weir, who wrote The Martian, has another book out about a Moon base, Artemis. Ima gotsta get it. Popular Mechanics explores the science and technology behind it.

-- What looks to be the beginning of an interesting series of articles: "How the Apollo fire propelled NASA to the Moon".

-- Some new discoveries make it (slightly) more likely that Jupiter's moon Europa could harbor life.

Update (11 December): Another big link: Trump orders NASA to send American astronauts to the Moon, Mars.