A Swarm of Dwarf Galaxies Buzz Around Our Milky Way's Twin Imagine the Milky Way and Andromeda as two massive aircraft ...

has been elongated during its long approach to the Milky Way galaxy's supermassive black hole Sagittarius A*. See W.M. Keck Observatory imagery of X7 and an animation of its closest approach to ...

This encounter, and the fact that Andromeda is as much as twice as massive as our Milky Way, could explain its plentiful and diverse dwarf galaxy population. This animation begins with a view of ...

The above animation gives a fly-around view of the Andromeda galaxy and its surrounding dwarf ... perhaps 2 to 5 billion years ago. The Milky Way, on the other hand, probably hasn't had a run ...

Interstellar material has been discovered in our solar system, but researchers continue to hunt for where it came from and ...

New data further challenge the best scientific theory of the history and the structure of the universe. But a separate recent ...

Astronomers have been looking for exoplanets orbiting Barnard's Star – the nearest solitary star to our Solar System, at just ...

The James Webb Space Telescope is investigating the Flame Nebula, hunting for "failed stars" to better understand how brown ...

Astronomers have made an exciting breakthrough by discovering four sub-Earth exoplanets orbiting Barnard’s Star, our closest ...

An animation switches between a Hubble and ... t be any one-Jupiter-mass objects free-floating out in our Milky Way galaxy, unless they were formed as planets and then ejected out of a planetary ...