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Space flight between the stars will need a tremendous amount of energy – and we may be able to store it in a miniature black hole FutureTech Future Tech: Swarming the 300
Supermassive Black Holes
A team of international astronomers has found a selection of black holes, even larger than supermassive black holes, up to 3.5 billion light years away Deep Space Molecules could be broken and reborn in black hole splurges
Space telescope finds most distant black hole-powered galaxy
2017年1月31日 · Black-hole-powered galaxies called blazars are the most common sources detected by NASA’s Fermi. Image Credit: M. Weiss/CfA Expressed in terms of redshift, astronomers’ preferred measure of the deep cosmos, the new blazars range from redshift 3.3 to 4.31, which means the light we now detect from them started on its way when the universe was ...
Cosmic smash up ‘cleanly’ rips supermassive black hole from its …
2016年11月3日 · What remains is its black hole and a small galactic remnant only about 3,000 light years across. For comparison, our Milky Way Galaxy is approximately 100,000 light years across. The discovery was made as part of a program to detect supermassive black holes, millions or billions of times more massive than the Sun, that are not at the centres of ...
What is “switching on” a supermassive black hole’s feeding frenzy?
2019年1月15日 · A supermassive black hole several million times the mass of the Sun is situated in the heart of our very own Milky Way. Despite how commonplace supermassive black holes are, it remains unclear how they grow to such enormous proportions. Some black holes constantly swallow gas in their surroundings, some suddenly swallow whole stars.
Supermassive black holes thrive in ‘jellyfish’ galaxies
2017年8月17日 · The supermassive black hole that resides in many galaxies can now feed on the abundance of surrounding gas. This study was led by an Italian-led team of astronomers using the Very Large Telescope’s (VLT) Multi-Unit Spectroscopic Explorer (MUSE), located at the Paranal Observatory in Chile.
Astronomers discover an ancient black hole hidden behind a mask …
2019年8月9日 · Astronomers have discovered evidence for the farthest “cloaked” black hole found to date, using NASA’s Chandra X-ray Observatory. At only about six percent of the current age of the universe, this is the first indication of a black hole hidden by gas at such an early time in the history of the cosmos.
Black holes are ruled out in explaining dark matter - All About Space
2018年10月3日 · Based on a statistical analysis of 740 of the brightest supernovae discovered as of 2014, and the fact that none of them appear to be magnified or brightened by hidden black hole “gravitational lenses,” the researchers concluded that primordial black holes can make up no more than about 40 percent of the dark matter in the universe.
The first ever direct image of a black hole has been produced
2019年4月10日 · The image reveals the black hole at the centre of Messier 87 (M87), a massive galaxy in the nearby Virgo galaxy cluster. This black hole resides 55 million light years from Earth and has a mass 6.5-billion times that of the Sun. “This is a huge day in astrophysics,” says NSF Director France Córdova. “We’re seeing the unseeable.
Most distant black hole has been discovered - All About Space
2017年12月7日 · No such thing would be seen in the present-day universe, as the black hole now rarely exceed a few dozen solar masses. “Quasars are among the brightest and most distant known celestial objects and are crucial to understanding the early universe,” says Bram Venemans of the Max Planck Institute for Astronomy in Germany.