The discovery of the dwarf galaxy Andromeda XXXV --located roughly 3 million light-years away and the smallest yet found in the Andromeda system -- is forcing astronomers to rethink how galaxies ...

Andromeda XXXV is only about 20,000 times more massive than our Sun—very small, even for a satellite galaxy. For comparison, ...

At the center of our galaxy, hidden behind dense clouds of gas and dust, the black hole Sagittarius A* rotates rapidly, ...

NASA’s newest space telescope rocketed toward orbit Tuesday to map the entire sky like never before — a sweeping look at hundreds of millions of galaxies.

A new image shows Arp 105, a dazzling ongoing union between an elliptical galaxy and a spiral galaxy drawn together by ...

The Hubble Space Telescope captured the rare merger of two galaxies, which are forming what's been dubbed a "cosmic guitar." ...

Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the ...

There are millions of galaxies in the universe, and while astronomers have cataloged many, some remain relatively unknown to ...

Feb. 27, 2025 — Located 2.5 million light-years away, the majestic Andromeda galaxy appears to the naked eye as a faint, spindle-shaped object roughly the angular size of the full Moon.

Read Showing a large portion of M66, this Hubble photo is a composite of images obtained at visible and infrared wavelengths.

By analyzing multiwavelength data from various space telescopes and astronomical surveys, Chinese astronomers have explored ...

T Coronae Borealis (T CrB), known as the "Blaze Star," is expected to undergo a rare thermonuclear explosion. Astronomers had ...