Researchers say Pioneer 10, which took the first close-up pictures of Jupiter before leaving our solar system in 1983, is being pulled back to the sun by an unknown force. The effect shows no sign of getting weaker as the spacecraft travels deeper into space, and scientists are considering the possibility that the probe has revealed a new force of nature.
More here.
h/t: James Choi’s always reliable blog.
One Response
the telegraph story that james choi links to is from 2002!
http://www.newscientist.com/article/dn13676-pioneer-spacecraft-mystery-may-be-laid-to-rest.html