The star Polaris marks the North Celestial Pole in our sky, around which all other objects in the heavens appear to rotate.

Friday, July 4 Mercury reaches its greatest eastern elongation from the Sun, standing 26° from our star at 1 A.M. EDT. We’ll take a look this evening but first, the predawn sky is the time to catch ...

The Axiom Mission 4 launch sent an international crew to the ISS, advancing commercial spaceflight and preparing for the ...

The breathtaking celestial displays known as the aurorae — the aurora borealis in the Northern Hemisphere and the aurora ...

Charles Messier was born in Badonviller, France, on June 26, 1730, the 10th child of court bailiff Nicolas and his wife ...