A dazzling cosmic swirl, NGC 3507 shines alone in this Hubble image, though it secretly belongs to a dynamic galactic duo.

Scientists have long puzzled over a discrepancy in how fast the universe is expanding, but new, sharper data from the James Webb Space Telescope may finally be solving the mystery. By refining ...

The mystery object, located just a short 15,000 light-years from Earth in our Milky Way galaxy, was spotted emitting unusual ...

Harvard astronomer Avi Loeb discusses the hypothetical use of highly energetic events as a way to produce "gravitational-wave ...

The Andromeda Galaxy (M31) is the closest large spiral galaxy to the Milky Way, visible to the naked eye and set to merge ...

Using combined observations from ground-based telescopes over nearly four years, the researchers saw the distant galactic ...

Astronomers have identified an extraordinary cosmic pattern in our celestial neighborhood: a stream of dwarf galaxies ...

While the Milky Way is technically visible year-round, certain times offer better viewing opportunities — especially for ...

The billions of stars comprising the Milky Way, our home galaxy, should appear especially vibrant in May 2025 as the band ...

Small companion galaxies around our neighboring Andromeda galaxy appear to stretch and point toward Earth in a fascinating ...

The billions of stars comprising the Milky Way, our home galaxy, should appear especially vibrant in May 2025 as the band ...

Andromeda, also known as M31, is the spiral galaxy closest to the Milky Way and, like our galaxy, is surrounded by a group of smaller dwarf galaxies that orbit around it. What has surprised scientists ...