The Hubble Space Telescope captures the dwarf galaxy NGC 4449 in the constellation Canes Venatici (The Hunting Dogs).

Dark matter remains one of science's deepest mysteries. It makes up about 25% of our universe, yet scientists only observe ...

NASA’s Hubble and Webb telescopes observe explosive star formation in the Small Magellanic Cloud's NGC 460 and NGC 456 clusters.

How a galaxy without dark matter is helping prove dark matter exists 03:23. Astronomers have detected what they believe to be one of the earliest instances of "galactic cannibalism" — when one ...

If UMa3/U1 is a dwarf galaxy, it could be key to answering some big questions about how the Milky Way formed. According to the standard model of cosmology, galaxy formation is a hierarchical ...

That’s the case for a dwarf galaxy called Wolf–Lundmark–Melotte (WLM), which is one-tenth the size of our home Milky Way galaxy and pretty close by space standards at 3 million light years away.

An entire dwarf galaxy has caught astronomers by surprise, appearing in orbit around the Milky Way when, last they looked, it hadn't been there. Called the Crater 2 dwarf galaxy, this 'new' Milky ...

The dwarf galaxy, bearing the official name HIPASS J1131–31, is located around 22 million light-years from Earth in the constellation of Hydra.

A mysterious signal that has confounded scientists for years has been traced to a spot in the sky more than 3 billion light-years away.

The other half got sped up in the Large Magellanic Cloud, a dwarf galaxy that is the closest galaxy to our own. (Han notes that while many people think of Andromeda as the closest galaxy, it's ...

The newfound galaxy is incredibly distant and extremely small. It orbits as a satellite of a larger galaxy. Though telescopes can't spot the dwarf galaxy, scientists detected its presence through ...