The galaxy's discovery challenges our understanding of how galaxies were formed in the early period after the Big Bang.

The galaxy – seen as it appeared when the Universe was just 1.5 billion years old – shows a mature, organised structure at a time when most early galaxies were believed to be irregular and chaotic, ...

In fact, these jets often expand into wide plumes or “lobes” that fan out far above and below their host galaxies. The jets ...

Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not wallowing in weird gear and iPad apps for cats, she can be found tinkering with her 1956 DeSoto. Most ...

Our Milky Way is home to at least 17 billion planets that are similar in size to Earth, a new estimate suggests. That's more than two Earth-size planets for every person on the globe.Just how many are ...

NASA's Hubble Space Telescope has captured a stunning new image of a galaxy that's over twice the size of our Milky Way. According to NASA, the gigantic elliptical galaxy (dubbed NGC 474) sits about ...

This image provided by the European Space Agency ESA, is Gaia’s all-sky view of our Milky Way Galaxy and neighboring galaxies, based on measurements of nearly 1.7 billion stars. The map shows the ...

NASA's forthcoming Nancy Grace Roman Telescope will hunt for "cosmic orphans," starless planets that might even outnumber their orbiting counterparts in our galaxy. When you purchase through links on ...

Astronomers have identified a remarkable population of distant quasars whose radio jets balloon to scales that make our own ...

When Peter Predehl, an astrophysicist at the Max Planck Institute for Extraterrestrial Physics in Germany, first laid eyes on the new map of the universe’s hottest objects, he immediately recognized ...

Computer simulations and observations of nearby galaxies helped astrophysicists determine that the Milky Way stretches nearly 2 million light-years across, Ken Croswell reported in “Astronomers find ...