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What's a safe distance between us and a supernova?

A plume on Betelgeuse (artist's impression)

An artist's impression of supernova 1987A

Ancient exploding stars hurled radioactive debris at Earth — and it's still here

Protoplanet Hypothesis

Diary of a Supernova: How (Some) Stars Blow Up

Earth scorched by red giant Sun


What Is a Supernova?

An illustration shows the record-breaking supernova ASASSN-15lh as it would appear from an exoplanet about 10,000 light-years away.

Evolution of a Type Ia supernova. Credit: NASA/CXC/M. Weiss

Supernova Type Ia by Mass Transfer

Astronomy Without A Telescope – Alchemy By Supernova

Expanding red giant stars will swallow too-close planets.

Supernova captured early after explosion

Artist's depiction of the life cycle of a Sun-like star, starting as a main-sequence star at lower left then expanding through the subgiant and giant phases ...

What is the Life Cycle Of The Sun?

History of supernova observation

Image of remnant of Supernova 1987A as seen at optical wavelengths with the Hubble Space Telescope

Golden star in dark sky.

'Cannonball' pulsar points to the supernova that formed it

Artist's impression of a supernova explosion

Top 10 space objects to see during the day


The remains of supernova explosion known as Cassiopeia ANASA/ESA Hubble Space Telescope / AP

Wonderopolis; Wonderopolis; Wonderopolis; Wonderopolis

Betelgeuse imaged in ultraviolet light by the Hubble Space Telescope and subsequently enhanced by NASA. The bright white spot is likely one of this star's ...

Ring Nebula and Helix Nebula


I got so many replies about that one that I decided to do a theme week, and stick with supernovae. The next day I tweeted this: BAFact: The nearest star ...

How to Spot New Supernova in Nearby Galaxy

Space Crafts S1 • E8

Earth will someday freeze over once the Sun dies, but that's only the beginning.

Something is "UP" in the constellation Cygnus! Supernova visible ...

New Technique Finds Farthest Supernovae

Brightest Supernova Ever Discovered Amazes And Confounds

Astronomers just proved the incredible origin of nearly all gold, platinum, and silver in the universe

Betelgeuse Micron Wavelength Image space wallpaper

Wonderopolis; Wonderopolis; Wonderopolis; Wonderopolis

How close a supernova would have to be to wipe out all life on Earth

... expected to go supernova for five billion years but life is only expected to be around for the next billion years as the Sun begins to grow as it ages.

Bright New Supernova Blows Up in Nearby M82, the Cigar Galaxy

Earth comparison with Pluto and Charon

Visible to the naked eye as the Seven Sisters, the Pleiades are the most famous of many surviving clusters of stars that formed together at the same time.

Oldest supernova EVER DETECTED found by UK scientists in GROUNDBREAKING discovery

Supernova SN 2011fe in the Pinwheel Galaxy

The Sun

View image of An asteroid impact would wipe out many species (Credit: Johan Swanepoel/Alamy)

This composite image shows supernova remnant 1E 0102.2-7219, which lies 190,000 light-years away. The supernova that may have caused a mass extinction on ...

SN Antikythera, SN Eleanor and SN Alexander at galaxy cluster RXC J0949.8+1707.

Supernova 1987A

Supernova shockwave seen with visible light for first time | Science | The Guardian

How Quickly Does a Supernova Happen?

For the first time, astronomers see the signatures of a newly birthed black hole or neutron star

Depending on a star's mass, it follows one of several pathways during its life. Brown dwarfs barely get going and then cool. Red dwarfs keep burning until ...

What is a Nova? How Does It Compare to a Supernova?

Orion: still there.

New Risk to Earth Found in Supernova Explosions

You Left Me Between A Black Hole And A Supernova

I was going to wait to write about this, but I'm getting a lot of emails about it, so I'll say something now, and followup when I get more information.

An image of supernova remnant Cassiopeia A. NASA/CXC/SAO, CC BY

After so long with no activity on the surface of the Sun we now have a huge active sunspot designated AR2740 which is the twice the size of Earth.

Are you a student or a teacher?

SHOW INFO/HIDE INFO. The sun is ...

Image ...

White Dwarf “Close” to Exploding as Supernova

Supernova 2006gy Illustration

... kilogram as hydrogen fusion, so energy-wise, the Sun continues to be mainly a hydrogen reactor. 90% of its luminosity still comes from burning hydrogen.

Image credit: Rogelio Bernal Andreo of Deep Sky Colors, via http://deepskycolors.com/astro/JPEG/RBA_Orion_HeadToToes.jpg. Betelgeuse is the bright orange ...

A star set to explode

Betelgeuse is just ridiculously huge. Note the solar system sizes to scale below it on the left. Click to redsupergiantate.

This illustration of the region surrounding our Solar System shows the estimated location of the two-million-year-old supernova, lying close to the galactic ...

Two photos of a galaxy side-on, one with a bright white dot in

Simulation: T. Melson (Max Planck Institute for Astrophysics, MPA);Visualization:Aaron Doering (MPA) and Elena Erastova (Max Planck Computing & Data ...

Formation and evolution of the Solar System

Planets, black holes and quasars: WIRED's ultimate space glossary | WIRED UK

All stars generate their energy through the process of nuclear fusion. The plentiful supply of hydrogen gas in the star, when crushed at high pressures and ...

Supernova in Pisces

I'm a longtime fan of cosmic disaster scenarios. Not because I'm particularly gloomy (according to my friends and family, I'm actually more of a goof), ...

Before Aldebaran was anything it started off as a large/ relatively cool mass of gas, part of a nebula. As gravity causes the gas to contract, ...

Where Did Early Cosmic Dust Come From? New Research Says Supernovae

BAFActs logo

What Is a Supernova?