A mysterious, one-off flash of energy from an unknown object outside the Milky Way has left astronomers puzzled. The research ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

Sagittarius A*, our galaxy's supermassive black hole, is constantly producing strange eruptions. Astronomers are using the ...

Astronomers used an array of telescopes to find the most massive radio jet in the early universe. The celestial object is ...

"These two supernova remnants are helping us to better understand the dynamics of our home galaxy’s neighborhood," ...

The James Webb Space Telescope has zoomed in on Leo P, a tiny galaxy with some big things to say about star formation.

Roughly 100 years ago, our neighboring spiral galaxy was discovered by American astronomer Edwin Hubble. Previously, scientists thought the entire universe existed within the Milky Way ...

The supermassive black hole located at the center of our galaxy, Sagittarius A*, appears to be putting on a true light show, ...

Your excellent question affords us the opportunity to distinguish between near-certain astronomical predictions and those which are far less so. Astronomers predict that our home galaxy and the ...

Astronomers as far back as the mid-18th century ... galaxies were all moving away from the Milky Way. Hubble’s results suggested the farther away a galaxy was, the faster it was moving away ...

Advertisement Article continues below this ad Hubble’s work opened the door to the study of the universe beyond our galaxy ... used star counts to map out the Milky Way. He cataloged a thousand ...