A binary system 18,000 light-years away, emits X-rays as a Sun-like star orbits a dense companion, either a neutron star or black hole. Telescopes like Chandra, IXPE, and XMM-Newton capture its ...

NASA compares the universe's biggest black holes with "each other and to our solar system," in this Goddard Space Flight ...

The asteroid, titled 387746 (2003 MH4), is gigantic. It is 335 metres in width, approximately 1,100 feet. That's almost the ...

Daniela D'Amato tells us, "You're surrounded by half-a-million-year-old formations, stalactites and stalagmites. You hear the dripping sounds. It's an out-of-this-world experience." ...

Space Shuttle Endeavour is scheduled to rise off Pad 39B at Kennedy Space Center Wednesday, carrying a load that cannot be weighed with conventional scales. When the seven astronauts ride the ...

Besides particles like sterile neutrinos, axions and weakly interacting massive particles (WIMPs), a leading candidate for ...

Some stars streaking through the Milky Way at millions of kilometers per hour probably trace back to a supermassive black ...

Astronomers searching for massive black holes shredding stars found one in an unusual place -- 2,600 light years from the core of a galaxy. The roque black hole may be from an earlier merger with ...

The Milky Way is often referred to as a medium-sized galaxy in the universe, with approximately 200 million stars and a massive black hole at its center ... Telescope’s NIRCam (Near-Infrared Camera) ...