supernova - Briefly

Behold, the Mind-Blowing Bubbles of Betelgeuse

Betelgeuse is a red supergiant with unusual surface activity causing observable variations in its brightness.

Betelgeuse's high spin rate might be an illusion created by its large size and surface activity. [ more ]

Nature

Daily briefing: 'All of Us' genetics chart stirs unease

The debate on depicting human diversity in genetics has been reignited by a figure in a high-profile paper.

A supernova mystery from 1987 has been solved, confirming it as a neutron star. [ more ]

Inverse

The Webb Telescope Just Solved a 37-Year-Old Space Explosion Mystery

SN 1987a resulted in a neutron star, not a black hole.

Scientists used data from the JWST to confirm the presence of the neutron star in SN 1987a. [ more ]

moreastrophysics

Ars Technica

Daily Telescope: Finally, we've found the core of a famous supernova

SN 1987A, the first observable supernova, still a topic of study

James Webb Space Telescope finds emission lines from a newly born neutron star [ more ]

www.scientificamerican.com

6 days ago

Don't PanicAt Least, Not about a Nearby Supernova

A nearby supernova's power is incomprehensible, releasing energy millions of times the sun's luminosity, impacting Earth even from great distances. [ more ]

Inverse

Behold the Strange Beauty of A Tangled Nebula

The Spaghetti Nebula is debris from a cosmic explosion, visible 40,000 years ago.

The filaments are made of hydrogen and oxygen, remnants of a massive star's explosion. [ more ]

www.nytimes.com

6 months ago

A Supernova Destroyed' Some of Earth's Ozone for a Few Minutes in 2022

Astronomers have discovered that a supernova explosion 1.9 billion light-years away caused a temporary depletion of ozone in Earth's upper atmosphere.

The gamma ray burst from the supernova resulted in a measurable change in the number of ionized particles in the atmosphere, including ozone molecules.

While the effect was only detectable for a few minutes and the ozone repaired itself, a closer supernova explosion could have catastrophic consequences for Earth's ozone layer. [ more ]

Inverse

3 months ago

Hubble Captured A Near-Perfect Spiral Galaxy Just After A Supernova

Astronomers observed a supernova in the spiral galaxy UGC 11105 in 2019

The supernova actually occurred at least 110 million years ago, but its light took that long to reach Earth [ more ]

Inverse

4 months ago

Astronomers Captured A Supposedly Dead Star Feasting On Its Cosmic Neighbor

Observations of a supernova in galaxy NGC 157 revealed a dead star flashing at regular intervals as it dimmed.

Bursts of movement of hydrogen gas coincided with the flashing bursts of light and powerful bursts of gamma rays. [ more ]

www.scientificamerican.com

5 months ago

Betelgeuse Will Briefly Disappear in Once-in-a-Lifetime Coincidence

Sky watchers will witness Betelgeuse briefly disappear as an asteroid blocks its view.

Scientists hope to use this opportunity to observe Betelgeuse's surface in high resolution. [ more ]

Futurism

6 months ago