quasar
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Webb Telescope Data Suggests There May Not Be a Ton of Supermassive Black Holes
A team of researchers scrutinising the Extended Groth Strip, a region of space between the constellations Ursa Major and Boötes, saw fewer growing supermassive black holes and less dust than they expected. The team was investigating active galactic nuclei, or AGN, galactic cores that expel high amounts of radiation, sometimes in the form of particle…
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Ancient Gas Clouds Spotted by Astronomers May Be Remnants of First Stars
Astronomers operating the European Southern Observatory’s Very Large Telescope think they’ve found three gas clouds that formed in the aftermath of the very first stars, when the Big Bang was still in the rear-view mirror.
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Scientists Observe Long, Curvy Jet Coming From a Quasar Across the Universe
The Event Horizon Telescope, which brought us the first-ever image of a black hole and the first view of the supermassive black hole at the centre of our galaxy, has inspected a much brighter target: a quasar. Quasars are extremely luminous objects that are powered by matter spiraling into huge black holes. These active galactic…
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India’s Liquid Mirror Telescope Is Ready for Its Close-up
High in the Himalayas, a new telescope is set to observe the night sky. The contraption has a 4-metre (3.96 m) lens, but here’s the kicker: it’s made of liquid mercury, a material seldom used for astronomical imaging.