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Supernova that lit up Earth's skies 843 years ago has a flowering 'zombie star' at its heart — and it's still explodingA new animated map sheds light on the superhot "zombie star" at the heart of a nebula leftover from a distant supernova witnessed by astronomers in 1181. The remains of the stellar explosion are unusually wonky and are still exploding at a constant speed.
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James Webb telescope watches ancient supernova replay 3 times — and confirms something is seriously wrong in our understanding of the universeThe James Webb Space Telescope has zoomed in on an ancient supernova, revealing fresh evidence that a crisis in cosmology called the Hubble tension isn't going anywhere soon.
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Space photo of the week: A cosmic butterfly emerges from a star's slow deathA Hawaii telescope just captured a sun-like star's glowing gas layers as it expands. The resulting butterfly-shaped nebula is a sight to behold.
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Once-in-a-lifetime nova explosion from T Coronae Borealis will create a 'new star' in the skyThe T Coronae Borealis nova will soon burst into life above our heads for the first time in 78 years.
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Runaway 'failed star' races through the cosmos at 1.2 million mphCitizen scientists have discovered what may be a brown dwarf racing through the cosmos at around 1.2 million miles per hour. Now astronomers want to know what launched it.
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Is the James Webb Space Telescope really 'breaking' cosmology?While headlines around the world claimed that ancient galaxies discovered by the James Webb Space Telescope were "breaking" our understanding of the Big Bang, the truth is much more nuanced — and much more interesting.
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Cosmic crime scene reveals ancient supernova aftermath of dead star mergerA "guest star," briefly seen in 1181, was created by colliding dead stars, according to new simulations that may finally solve an 800-year-old cosmic mystery.
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Google Doodle honors César Lattes, Brazilian physicist who discovered a long-sought particle hidden in cosmic raysThe physicist César Lattes, who is honored today (July 11) in a Google Doodle, is famous across Latin America for his discovery of the pion — a subatomic particle produced by shockwaves from exploding stars.
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Something 'kicked' this hypervelocity star racing through the Milky Way at 1.3 million miles per hourA low-mass star has been discovered racing through the Milky Way at over a million miles per hour, a journey that began with either the supernova explosion of a vampire star or an encounter with black holes.
