On hearing the words "city killer" and "asteroid" in the same sentence, you'd be forgiven for thinking something bad is about to happen. But not to fear. Although an asteroid with the potential to ...

The planet Jupiter on Jan. 10 will appear bigger and brighter than at any other time this year.

A celestial event called a conjunction featured the moon, Venus, and the star Regulus on Sept. 19. The trio will still be shining on Sept. 20, but Venus and Regulus will be further from the moon. The ...

One of the best naked-eye stargazing sights of the year is on offer to skywatchers this week — if you can rise before the sun Friday (Sept. 19). Just before sunrise, the crescent moon, the brilliant ...