A fireball spotted streaking across the night sky late on Monday in the western United States was almost certainly the body of a rocket used by China in December to launch a satellite, an astronomer said Tuesday.
NASA`s Hubble Space Telescope has discovered that short-duration gamma ray bursts are produced by the merger of two small, super-dense stellar objects.
NASA has said that the large vibrant meteor which shot through the US sky shortly after 7:50 pm on Friday appeared to be "a single meteor event."
Day in Pics: 28th March
Showbiz World - March 28, 2015
'Bharat Ratna' Atal Bihari Vajpayee