Will the Milky Way and Andromeda galaxies collide in several billion years? The odds have changed with a new study using ...

A decade of observations by NASA’s Hubble Space Telescope has produced the sharpest and most detailed images of the Andromeda ...

The Andromeda galaxy is the galaxy next door, a very faint, fuzzy thing in the night sky, larger than a full moon. Textbooks ...

Using the Hubble Space Telescope (HST), astronomers have observed a nearby ultra-diffuse galaxy designated F8D1. The new ...

How did a Cepheid variable star help Edwin Hubble prove the Andromeda Nebula was a galaxy? Roger BradySan Quentin, California Cepheids are rare variable stars with periods ranging from about 1 to 120 ...

The swirling spiral galaxy in this NASA/ESA Hubble Space Telescope image is NGC 3285B, which resides 137 million light-years ...

In the sprawling Hydra constellation, 137 million light-years away, lies NGC 3285B—a dazzling spiral galaxy recently ...

The telescope was named after astronomer Edwin Hubble, who studied the neighboring Andromeda Galaxy using the Mount Wilson Observatory in Los Angeles in 1923, according to the observatory’s website.

Astronomers deployed the Hubble Space Telescope over the course of a decade to conduct 600 separate observations to produce an extraordinary mosaic of the great spiral galaxy. Astronomer John S.

Hubble had been in space for less than two years when its Goddard High Resolution Spectrograph detected traces of boron in a not-too-distant star. At an estimated age of 14.5 billion years, the ...

Some of these open clusters are pretty famous, such as the Pleiades cluster, also known as the Seven Sisters. This is relatively close to Earth, just 444 light-years away. Others are much more distant ...

A large fraction of M31's dwarf satellites are confined to a plane around the Andromeda Galaxy, as confirmed earlier in 2025 by the Hubble Space Telescope, and a similar satellite plane exists ...