Astronomers may have found a way to turn the Moon into a black hole observatory. By linking lunar telescopes with Earth-based ones, they could reach detail never seen before. Dozens of black holes may ...

Starting Jan. 21, Canadians can see a rare celestial event as six planets line up in the evening sky, mostly visible to the ...

Looking for a sky event this week? Check out our full Sky This Week column. January 23: The Moon visits Saturn and Neptune ...

Learn how to spot Sirius, Procyon and their canine constellations, and discover the myths and science behind the dog stars.