A century ago, Edwin Hubble unveiled a groundbreaking discovery that revolutionized humanity’s understanding of the cosmos.

High radiation during a time of frenzied star formation in the Milky Way left one stellar population with few chances to form planets, a study reports.

Panorama of Nearest Galaxy Unveils Hundreds of Millions of Stars On a crisp, clear autumn night, you can see the most distant object visible to the naked eye — the stunning Andromeda Galaxy, our Milky ...

Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a ...

The new composite image, which combines hundreds of photos from the Hubble Space Telescope, shows the Andromeda Galaxy with ...

According to astronomy, when you wish upon a star you’re a million years too late. The star is dead, just like your dreams. When you wish upon a star, Jiminy Cricket told us, your dreams come true.

A radio telescope in South Africa has unearthed a giant galaxy—dubbed a "cosmic megastructure"—with plasma jets that measure ...

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

For years, Arlene Jurewicz-Leighton taught online courses for science educators. She noticed that her home in Lincolnville ...

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

Researchers have found there are many more black holes in the universe than once thought. (Credit: WikiMedia Commons) Most ...

Messier 31 is located 2.5 million light-years away from Earth and was a much bigger target in the sky than the galaxies ...