Black Hole

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Of all the objects astronomers have observed in space over centuries of scientific investigation, black holes are one of the most bizarre and mysterious. Objects so dense that not even light can escape their pull are hard for us to wrap our heads around, but …

Oh my, this recently discovered black hole... well, its big. How big? Among black holes whose masses scientists can directly infer based on the motion of their host galaxies stars, its the biggest. Its 40 billion times the mass of the Sun bigthats around 2.5…

In 2015, when scientists, for the first time ever, directly detected gravitational waves—ripples in spacetime—from colliding black holes, the result came as a shock to some astronomers. Based on previous studies of black holes using x-rays, many experts expec…

Astronomers used new data to measure the mass of a black hole in the central bright galaxy shown here: It's 40 billion times more massive than our Sun. Matthias Kluge/USM/MPE About 700 million light-years from earth, in the swirling heart of the brightest g…

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Share to facebookShare to twitterShare to linkedin When a black hole and a companion star orbit one another, the star's motion will change over time... owing to the gravitational influence of the black hole, while matt…

An artist's impression of a massive black hole and the accretion disk it has gathered as its intense gravity pulls matter off of a blue companion star. Credit: YU Jingchuan, Beijing Planetarium Last month, astronomers reported finding what could be the small…

A team of international scientists spotted a stellar black hole three-and-a-half times greater than anyone thought possible. Researchers previously estimated the mass of an individual black hole in our galaxy at no more than 20 times that of the sun. Jifeng…

The team used China's Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) to find stars orbiting objects that are seemingly invisible -- a technique that had been proposed back in 1783, but hadn't really been possible until recently. They then …