Victor Rogus is an American amateur astronomer and a fellow of the Royal Astronomical Society in London. This is the 10th in his series of exclusive Space.com posts about amateur astronomy. He ...

We all learned about conjunctions in grade school, a memory likely filed away with other early school memories, such as how to do long division and reciting multiplication tables through the number 12 ...

NASA’s Hubble Space Telescope captured the tattered remains of a supernova explosion known as Cassiopeia A in the Milky Way galaxy. Astronomers at Hawaii observatories are also monitoring supernovae, ...

On December 18, the Moon and Mercury meet in the sky, blending emotion and thought in a way that feels personal, timely, and very present. This conjunction happens as the Moon has just moved into ...

On Dec. 21, after drawing visibly closer and closer in the night sky over the past few months, Jupiter and Saturn will appear the closest they have since March 4, 1226, nearly 800 years ago. They were ...

Rare conjunction of moon, Venus, Regulus to light up sky will take place on September 19. This celestial event will bring together the crescent moon, the planet Venus, and the star Regulus in a close ...