Jo Marchant, author of The Human Cosmos, and Smithsonian science editor Carlyn Kranking revel in auroras through the ages and ...

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...

We'll see six planets in the first part of February – Mars, Jupiter, Uranus, Neptune, Venus and Saturn – and on Feb. 28, they ...

Analysis: From planets and constellations, to eclipses and the Aurora Borealis ... from the impact that created the crater radiating in all directions from it. Credit: Royal Observatory Greenwich ...