The International Space Station, with three astronauts on board, will be brighter than any star in the sky over the next few nights when it blazes across Ireland. This amazing site heralds the first ...
A sliver of space where scientists found Segue 1, a faint dwarf galaxy about 75,000 light-years away, in 2006. Credit: Marla Geha / W.M. Keck Observatory It started with a homework assignment: A ...
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