ApolloPlus40 – Tweeting the Apollo 11 Mission

Nature News twitters the Apollo 11 moon mission as it happened — 40 years on. Followers can read about technical milestones, political challenges, and related events in the space race starting today, just over a month before the 40th anniversary of the first lunar landing.

(Gliese 581 being a system, with a planet, about 20 light-years away, which would account for the 40-year delay)