Supernova

Supernova SN2018gv, spotted by the Hubble Space Telescope in galaxy NGC 2525, 70 million lightyears away. Credit: credit ESA/Hubble & NASA, A. Riess and the SH0ES team / Acknowledgment: Mahdi Zamani

Eye On The Sky Hubble views a supernova in a spiral galaxy

Three images of NGC 2770 from early 2008 show the rare occurrence of two supernovae. Credit: ESO

Why do some galaxies have more supernovae than others?

The red giant star Betelgeuse (the prominent orange-red star above centre in this image), as it appears in the constellation of Orion. Credit: Rolf Löhr / CCDGuide.com

Is Betelgeuse really about to explode?

Tycho supernova remnant. Credit: X-ray: NASA/CXC/RIKEN & GSFC/T. Sato et al; Optical: DSS

Eye On The Sky The remains of a stellar explosion, 13,000 lightyears away

Supernova remnant LMC N63A. Credit Enhanced Image by Judy Schmidt (CC BY-NC-SA) based on images provided courtesy of NASA/CXC/SAO & NASA/STScI.)

Astrophotography

Eye On The Sky The remains of an exploded star appear in X-ray

The Veil Nebula, Thomas Henne / CCDGuide.com

Observing guide The best supernova remnants to see in November's night skies

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‘Chameleon’ supernova observed

This image from NASA’s Chandra X-ray Observatory shows the location of different elements in the Cassiopeia A supernova remnant including silicon (red), sulfur (yellow), calcium (green) and iron (purple). Each of these elements produces X-rays within narrow energy ranges, allowing maps of their location to be created. The blast wave from the explosion is seen as the blue outer ring. Astronomers study supernova remnants to better understand how stars produce and then disseminate many of the elements on Earth and in the cosmos at large.

When stars collapse: what is a supernova?

This colour image of the supernova was a one in 100 million piece of luck. Image Credit: UC Santa Cruz & Carnegie Institution for Science, Las Campanas Observatory

Amateur astronomer catches supernova’s first light

Cassiopeia A; the remnants of an exploded star. Studying objects like these can teach astronomers how stars distribute essential elements throughout the Universe. Image Credit: NASA/CXC/SAO

Exploded star study exposes essential elements

An artist’s impression of dust forming in the environment around a supernova. Credit: ESO/M. Kornmesser

Supernova star comes back to life

An artist’s impression of Supernova 1987A. The red inner region contains lots of dust detected by ALMA (Atacama Large Millimeter/submilimeter Array), and the blue outer shell shows gas ejected from the star before its explosion. Credit: A. Angelich/NRAO/AUI/NSF

Supernova explosion home to unseen ‘dust factory’

The spiral galaxy NGC 2770 and its two supernovae as observed at the Asiago Observatory. The image was obtained on 12 January 2008 and shows the then fading SN 2007uy and the newly discovered SN 2008D.

Supernova or imposter?

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Six lesser-known women of astronomy

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Supernovae bombarded Earth with cosmic rays