Artist’s concept of the SN 2016iet pair-instability supernova. (Image: Gemini Observatory / NSF / AURA / illustration by Joy Pollard)

Total Annihilation for Supermassive Stars

A renegade star exploding in a distant galaxy has forced astronomers to set aside decades of research and focus on a new breed of supernova that can utterly annihilate its parent star — leaving no remnant behind. The signature event,…

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Constructing a Telescope Amid Stiff Opposition

At Mauna Kea in Hawaii, an international coalition is trying to build a telescope. Called the Thirty Meter Telescope (TMT), it is expected to help scientists see what’s out in…

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Total Annihilation for Supermassive Stars

A renegade star exploding in a distant galaxy has forced astronomers to set aside decades of research and focus on a new breed of supernova that can utterly annihilate its…

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The Moon Rock That Turned Out to Be From Earth

If you put a Moon rock alongside one from Earth, they usually don’t have a lot in common. So when Curtin University planetary scientist Professor Alexander Nemchin looked closely at…

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Ghosts of Ancient Explosions Live on in Stars Today

When small, dense stars called white dwarfs explode, they produce bright, short-lived flares called Type Ia supernovae. These supernovae are informative cosmological markers for astronomers — for example, they were…

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Are Exiled Moons the Answer to Astronomical Mysteries?

Moons ejected from orbits around gas giant exoplanets could explain several astronomical mysteries, an international team of astronomers suggests. Researchers led by Mario Sucerquia, from the Universidad de Antioquia, Colombia,…