On New Year’s Day, 1925, attendees at an astronomical conference heard one of the most influential scientific presentations of all time. It proved the Andromeda Nebula is immensely distant from Earth, ...

"Beyond the Milky Way lie billions of other galaxies, drifting a few million light years from one another like lily pads floating on the surface of a pond." — Timothy Ferris in Seeing in the Dark A ...

Everything you need to know about what’s happening in the night sky this month ...

From nebulas and galaxies to star clusters, the sun and the moon, here’s what to image in the night sky using a smart ...

How would you like to see the farthest thing visible to the naked eye? It’s possible, but you’ll need to bundle up and sit back on a lawn chair. Your neighbors may think you’ve cracked up sitting out ...

The article details various types of deep-sky objects observable by amateur astronomers, including double stars, variable stars, open and globular star clusters, emission, planetary, and reflection ...

Edwin Powell Hubble was born on November 20, 1889, in Marshfield, Missouri. In high school he was known for his sports prowess. He led the University of Chicago basketball team to their first Big Ten ...

Michael Bakich selected visually stunning celestial objects observed through telescopes, including Omega Centauri, the 2010 total solar eclipse over Easter Island, Thor's Helmet nebula, and the Jewel ...

Photo: Andromeda nebula plate with Hubble's handwritten circle around the variable star he discovered In 1919 American astronomer Edwin Hubble began work at the Mount Wilson Observatory in California, ...

The Andromeda Galaxy is a spiral galaxy approximately 2.5 million light-years (2.4×10 km) from Earth in the Andromeda constellation. Also known as Messier 31, M31, or NGC 224, it is often referred to ...