杏吧原创

Enthusiasts for human space exploration say they want to help avert
Armageddon. The nonprofit-making Space Frontier Foundation, based in Nyack, New
York, is awarding grants to astronomers to conduct follow-up observations of
potentially threatening asteroids so that their orbits can be calculated more
accurately. The first two awards of $5000 each have gone to astronomers
in Bulgaria and the Czech Republic. The foundation raises money from donations
and sales of books about the Apollo programme.