The Milky Way's core will be visible this month and through August. Here's what Tennessee stargazers should know.

Stargazers may catch a cosmic light show this Fourth of July weekend when the Milky Way appears in the night sky across the ...

If you look up on a clear night from a darksky location, you might see the Milky Way as a faint band of thousands of stars.

The Milky Way and the neighboring Andromeda galaxy are currently hurtling through space toward each other at a speed of about 250,000 miles per hour (400,000 kph), setting up a possible future ...

His measurements marked the end of the Great Debate about the Milky Way’s size and the nature of the nebulae. Hubble wrote about his discovery to Harlow Shapley, who had argued that the Milky ...

Measuring a galaxy’s brightness or apparent size is not a good guide to its distance. Hubble leveraged a discovery made by Henrietta Swan Leavitt 10 years earlier.

Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is ...

Astronomers have discovered an extraordinary new giant radio galaxy with plasma jets 32 times the size of our Milky Way.

Though it is a full-fledged galaxy, Andromeda XXXV is small enough to be ensnared by the gravitational pull of Andromeda—much like the satellite galaxies of the Milky Way.

What is the Milky Way? The Milky Way is our galaxy, a massive system made of stars, gas and dust. It is estimated to contain more than 100 billion stars and is about 100,000 light-years across.

Scientists previously predicted the pair of galaxies would merge in about five billion years. Now, research suggests that ...

Researchers discover high-velocity clouds in the nearby spiral galaxy M83. These clouds are moving at speeds significantly ...