Black Hole
A black hole is a place in space where gravity is so strong that it pulls so much. Even electromagnetic radiation such as light cannot escape it; because no light can get out, people can’t see black holes.
The gravity is so strong because matter has been squeezed into a tiny space. This compression happens when a star is dying. The death of a massive star can form a black hole.
Black holes were predicted by Einstein’s most famous theory of general relativity, which showed that when a massive star dies, it leaves behind a small, dense remnant core. If the core’s mass is more than about three times the mass of the Sun, the equations show that the force of gravity overwhelms all other forces and creates a black hole.
Large-scale bubbles found in the halo of the Milky Way
Gigantic hot gas structures above and below the Galactic disc are probably due to shock waves generated by past energetic activity in the center of our Galaxy.
Earth is 2,000 light-years closer to supermassive black hole Sagittarius A*
Earth faster, closer to black hole in new map of galaxy.
Hubble captured shadow play of disk around a black hole
Black holes are the universe's monsters: voracious eating machines that swallow anything that ventures near them.
Dual nuclei detected the galaxy merger remnant Mrk 212
Results shed more light on the properties and nature of this remnant.
Astronomers determined the spin of the supermassive black hole in the Milky Way
The Spin of the Supermassive Black Hole in our Galaxy.
Scientists generated megatesla order magnetic fields
Could megatesla magnetic fields be realized on Earth?
Einstein’s theory just got 500 times harder to beat
Einstein's description of gravity just got much harder to beat.
Astronomers spots six galaxies trapped in the web of a supermassive black hole
With the help of ESO’s Very Large Telescope (VLT), astronomers have found six galaxies lying around a supermassive black hole when the Universe was...
New analysis reveals the behavior of the M87* black hole
Analysis reveals turbulent evolution of the M87* black hole image.