A supernova is an event in which a star destroys itself in an explosion which can briefly become as luminous as an entire galaxy. This list of supernovae of historical significance includes events that were observed prior to the development of photography, and individual events that have been the subject of a scientific paper that contributed ...

A supernova (pl.: supernovae or supernovas) is a powerful and luminous explosion of a star. A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion.

This is a list of observed supernova remnants (SNRs) in the Milky Way, as well as galaxies nearby enough to resolve individual nebulae, such as the Large and Small Magellanic Clouds and the Andromeda Galaxy.

Nov 8, 2023 · These celestial fireworks are known as supernovae, and they serve as the universe’s most striking reminders of the cycle of stellar life. But not all supernovae are created equal. Differences in...

Apr 3, 2025 · One example is the NuSTAR (Nuclear Spectroscopic Telescope Array) mission, which uses X-ray vision to investigate the universe. NuSTAR is helping scientists observe supernovas and young nebulas to learn more about what happens leading up to, during, and after these spectacular blasts.

Jun 19, 2023 · Supernovas can briefly outshine entire galaxies and radiate more energy than our sun will in its entire lifetime. They're also the primary source of heavy elements in the universe. According to...

Dec 23, 2024 · What is a Supernova? This is the biggest explosion that will ever light up the modern universe. Every blast is the extremely bright, super-powerful explosion of a star. Supernovas are so bright that they can be seen across the universe, outshining their entire galaxies for a few days or even months. How Rare is a Supernova?

Nov 30, 2020 · Just a few decades ago, Supernova 1987A was temporarily visible to the naked eye. But ancient astronomers also witnessed a number of these "guest stars" pop up in our night sky.

Intense radiation reached Earth on February 23, 1987, 7:35:35 UT. Notable for archival photos of progenitor star and detection of supernova neutrinos. Most recent Local Group supernova. Linked to GRB 980425, which was the first time a gamma-ray burst has been linked to a supernova. First supernovae in this galaxy, where 3 more was detected later.

Supernovas are some of the brightest events in the universe, occasionally outshining entire galaxies at their peak. Many supernovas can be seen from billions of light-years away, and nearby supernovas in past centuries have been visible during the daytime.