galaxies
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Astronomers Surprised By a Distant Black Hole Roaring Back to Life
The distant object suddenly started feeding after a prolonged silence.
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Massive Black Holes Littered the Early Universe, Simulation Suggests
Since the gravitational waves predicted by Einstein were first detected in 2015, astrophysicists have been pondering the gravitational wave background — the cumulative undulations of these spacetime ripples as they cross the cosmos.
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NASA Telescopes Team Up to Produce Stupendously Purple Views of Space
Four remarkable cosmic scenes were recently imaged by four NASA space observatories — the Webb Space Telescope, Chandra X-ray Observatory, Spitzer Space Telescope, and Hubble Space Telescope — to showcase the objects as never before.
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New Image of M87 Black Hole Shows a ‘Fluffier’ Ring and Its High-Speed Jet
The Event Horizon Telescope, a network of radio telescopes around the world, has produced fresh observations of the black hole at the centre of galaxy Messier 87.