New research suggests that a massive, unidentified object might have passed through our Solar System billions of years ago, ...

The six curiosities that Brown and Batygin identified have elongated elliptical orbits whose perihelia ... as Centaurs (asteroids that orbit between Jupiter and Neptune) with highly inclined ...

Astronomers previously thought all FRBs were generated by magnetars formed through the explosions of very young, massive stars. But new FRB is pinpointed to the outskirts of 11.3-billion-year-old ...

For the first time, astronomers have traced a fast radio burst (FRB) to the outskirts of an ancient, dead, elliptical galaxy—an unprecedented home for a phenomenon previously associated with ...

The signal has been linked to the outskirts of an ancient, dead, elliptical galaxy. This presents an unprecedented home for a phenomenon previously associated with much younger galaxies.

"Clearly there is something interesting going on." The Hubble Space Telescope image you see above is from last year, and it showcases several galaxies that inhabit a pocket of our universe roughly ...

One day, however, the two galaxies may collide, forming a giant, egg-shaped elliptical galaxy. But that great merger won't happen for billions of years. Mark is an award-winning journalist and the ...

Star formation is usually nearly non-existent in large elliptical galaxies, which represent the final stage in galaxy evolution. Unlike spiral galaxies like the Milky Way, with their distinct ...

Andromeda is the closest large galaxy to the Milky Way. And it is getting closer, as the two will merge in several billion years. It has been an object of study for centuries, but we have never ...

The Hubble Space Telescope completes a high-resolution portrait of our galaxy's gorgeous neighbor, which will help scientists better understand our Milky Way.