The Hubble Space Telescope launched on April 24, 1990, aboard the Space Shuttle Discovery (STS-31), and deployed into Earth ...

Spanning approximately 220,000 light-years across, the Andromeda Galaxy is the largest galaxy of the Local Group, which also ...

A newly discovered comet, C/2025 F2 (SWAN), is now visible in the eastern sky before dawn. Officially designated on April 8, ...

The Andromeda galaxy is surrounded by a constellation of dwarf galaxies that are arranged in a highly lopsided manner. Analysis of cosmological simulations published in Nature Astronomy reveal that ...

"SPT2349-56 is an extreme case of this. Over 30 galaxies are packed into a region comparable in size to the Andromeda galaxy, one of our nearest neighbors. "However, this system is forming stars ...

A bright star within our Milky Way galaxy photobombed a beautiful new image of a distant galaxy with "patchy" spiral arms.

P2 corresponds to the position of the supermassive black hole at the center of the Andromeda galaxy. Image Credit: DiKerby, Zhang, & Irwin 2025, ApJ Every large galaxy has a supermassive black hole, ...

A Hubble telescope image shows the most detailed view of NGC 346 yet, a stellar nursery within the Small Magellanic Cloud dwarf galaxy.

Then, they pieced together a record of the X-ray light produced by a supermassive black hole in the Andromeda galaxy called M31 star or M31*. Their research provides insight into the unique ...

This dazzling image from the NASA/ESA Hubble Space Telescope showcases the spiral galaxy NGC 5248, also known as Caldwell 45. This image from NASA's Wide-field Infrared Survey Explorer (WISE) captures ...

April is also a good month for galaxy-watching with the help of a telescope, including the Andromeda Galaxy ... of light appear to originate from the constellation Lyra, the harp.