Astronomers have discovered the first microblazar in the Milky Way, a black hole-powered particle accelerator that is blasting near-light-speed plasma jets at Earth.

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A new theoretical study suggests that the supermassive black hole at the center of the Milky Way could accelerate particles ...

Launch of space shuttle Atlantis is postponed after golf ball-sized hail from a severe storm damaged the foam insulation on the external fuel tank. NASA announces the delay and plans to return the ...

For more than 30 years, astronomers have been searching for a particular kind of black hole. They knew it should exist somewhere in our galaxy, but they just couldn’t find one. Now, they’ve finally ...

Rogue black holes that break away from their cosmic homes may carry with them the histories of the galaxies they may eventually escape. Astronomers have discovered the first microblazar in the Milky ...

Astronomers have identified the most distant blazar, featuring a supermassive black hole with plasma jets directed at Earth, ...

Making it work would require pulling a lot of (cosmic) strings—but perhaps we need wild explanations to explain wild events.

Add Yahoo as a preferred source to see more of our stories on Google. What if an entire galactic nucleus was blasting high energy radiation directly at Earth? (Credit: NASA) A new paper in the Journal ...

This article predates Brown Brothers Media’s ownership of Science Blog and has not been reviewed under our current editorial process. It is preserved as part of the publication’s archive. After seven ...