Sounds of Big Bang' Shed New Light on Milky Way Galaxy's Uncanny Home Most of the astronomical objects are identified by ...

The M100 galaxy, which is about 60 percent larger than the Milky Way, next to the M97 galaxy. From "Galaxy Size Comparison Chart" by Rhys Taylor ...

Fresh evidence claims that the Earth and the surrounding galaxy are suspended inside a cosmic void based on echoes from the Big Bang.

The Milky Way galaxy is our cosmic home. A barred spiral galaxy stretching 100,000 light-years across. Here we explore our galactic neighborhood in more detail.

A giant gas planet comparable in size to Saturn exists around a small red dwarf star. The discovery is beyond the scope of ...

Astronomers have at last identified what’s believed to be the edge of the Milky Way galaxy. A team of astronomers from England used that farthest point to determine that the diameter of the ...

One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s "Great Debate" ...

Shockingly Tiny Galaxy Near Andromeda Is Just One-Millionth the Size of the Milky Way The fully formed galaxy is remarkably teeny, raising new questions about how galaxies emerge and evolve.

These collisions likely changed the shape and size of our galaxy too; a 2011 study suggested that the Milky Way's spiral arm is the result of two collisions with the Sagittarius dwarf galaxy.

Astronomers had once calculated that billions of planets had gone rogue in the Milky Way. Now, scientists at NASA and Osaka University in Japan are upping the estimate to trillions.