NASA's flagship space telescope captured flares from the disk of superheated material around the black hole, revealing the dynamic—and explosive—physics at our galaxy's core.

Astrophysicists have observed our central supermassive black hole. They found the accretion disk is constantly emitting flares without periods of rest. Shorter, faint flares and longer, bright flares ...

While the events observed around Sgr A* are dramatic, this black hole is not as active as some at the center of other ...

Scientists predict Andromeda and the Milky Way will collide in about 4.5 billion years—reshaping the night sky forever!.

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

You shouldn't set your expectations too high, but it will give you enough of a taste to see whether you want to invest in ...

A nebula that neighbors the Milky Way galaxy happens to be a powerhouse of forging stars, "a bouquet of thousands of stars in ...

A new study rewrites the story of human evolution, suggesting that intelligent life is not rare but a natural planetary ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

SkywatchingScienceSkywatchingThe Next Full Moon is the Snow… Skywatching HomeWhat's UpEclipsesExplore the Night SkyNight Sky ...

From supermoons to an eclipse and star parties at national parks, these captivating celestial phenomena will get Americans ...

The four-planet lineup that began in January concludes by mid- to late February, as Saturn sinks increasingly lower in the ...