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What Are Black Holes? - NASA
2020年9月8日 · A black hole is an astronomical object with a gravitational pull so strong that nothing, not even light, can escape it. A black hole’s “surface,” called its event horizon, defines the boundary where the velocity needed to escape exceeds the speed of …
Black Holes - NASA Science
2024年5月8日 · Astronomers tracked the orbits of several stars near the center of the Milky Way to prove it houses a supermassive black hole, a discovery that won the 2020 Nobel Prize. When very massive objects accelerate through space, they create ripples in the fabric of space-time called gravitational waves.
Black Hole Types - Science@NASA
2020年10月22日 · Observations of distant galaxies show that some supermassive black holes formed in the first billion years after the birth of the universe. It’s possible these black holes began with the collapse of supermassive stars in the early universe, which gave them a head start.
10 Questions You Might Have About Black Holes - NASA Science
2019年9月23日 · A black hole is an extremely dense object in space from which no light can escape. While black holes are mysterious and exotic, they are also a key consequence of how gravity works: When a lot of mass gets compressed into a small enough space, the resulting object rips the very fabric of space and time, becoming what is called a singularity.
How Many Black Holes Are Hiding? NASA Study Homes in on …
2025年1月13日 · To confirm edge-on, heavily obscured black holes, the researchers relied on NASA’s NuSTAR (Nuclear Spectroscopic Telescope Array), an X-ray observatory also managed by JPL. X-rays are radiated by some of the hottest material around the black hole. Lower-energy X-rays are absorbed by the surrounding clouds of gas and dust, while the higher ...
NASA Animation Sizes Up the Universe’s Biggest Black Holes
2023年5月1日 · A new NASA animation highlights the “super” in supermassive black holes. These monsters lurk in the centers of most big galaxies, including our own Milky Way, and contain between 100,000 and tens of billions of times more mass than our Sun.
What Is a Black Hole? | NASA Space Place – NASA Science for Kids
2025年1月14日 · A black hole is an area of such immense gravity that nothing—not even light—can escape from it. Black holes form at the end of some stars’ lives. The energy that held the star together disappears and it collapses in on itself producing a magnificent explosion.
Black Hole Image Makes History - NASA Jet Propulsion …
2019年4月10日 · NASA telescopes helped characterize the black hole's environment. A black hole and its shadow have been captured in an image for the first time, a historic feat by an international network of radio telescopes called the Event Horizon Telescope (EHT) .
First Image of a Black Hole - NASA Science
2019年4月10日 · What is a Black Hole? A black hole is a dense, compact object whose gravitational pull is so strong that – within a certain distance of it – nothing can escape, not even light. Black holes are thought to result from the collapse of …
Black Hole Ten Things - NASA Universe Exploration
The most distant black hole detected, at the center of a galaxy called QSO J0313-1806, is around 13 billion light-years away.