The giant elliptical galaxy Messier 87 (M87), in the constellation Virgo, possesses near its center a supermassive black hole ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical Society in January 1925, a paper read by one of his ...

In a breakthrough study that redefines how we view the heart of our galaxy, astronomers have captured the first-ever direct ...

Astronomers made a remarkable discovery—one of the biggest pair of jets that appear to shoot from behind a supermassive black hole 7.5 billion light-years from Earth. Using some quick arithmetic, ...

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 ...

This size places it in the larger end of known comets ... Its velocity suggests a long and potentially ancient journey ...

Astronomers have spotted the earliest barred spiral galaxy yet. It is the same type of galaxy as our Milky Way, but it dates back to when the universe was just 2 billion years old, earlier than was ...

LOS ANGELES - The 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.

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