4/7/2023 0 Comments Super nova![]() ![]() However, it will have enough mass and pressure to fuse carbon. Like the sun, it will eventually run out of hydrogen and then helium fuel at its core. For a star to explode as a Type II supernova, it must be several times more massive than the sun (estimates run from eight to 15 solar masses (opens in new tab)). Let's look at the more exciting Type II first. (Image credit: NASA/ESA and Jeff Hester (Arizona State University).) (opens in new tab) Type II supernovae ![]() The Hubble Space Telescope has caught the most detailed view of the Crab Nebula in one of the largest images ever assembled by the space-based observatory. Type II supernova: star runs out of nuclear fuel and collapses under its own gravity. Type I supernova: star accumulates matter from a nearby neighbor until a runaway nuclear reaction ignites. (Though the news for Earth still isn't good, because once the sun runs out of its nuclear fuel, perhaps in a couple billion years, it will swell into a red giant (opens in new tab) that will likely vaporize our world, before gradually cooling into a white dwarf (opens in new tab).) But with the right amount of mass, a star can burn out in a fiery explosion.Ī star can go supernova in one of two ways: Our sun, for example, doesn't have enough mass to explode as a supernova. Related: Giant, galactic bubble is driving star formation, new study finds (opens in new tab)Įxactly how a star dies depends in part on its mass. Department of Energy (opens in new tab).Ībout 10 million years ago, a cluster of supernovae created the "Local Bubble," a 300-light-year long, peanut-shaped bubble of gas in the interstellar medium that surrounds our solar system. This means a star explodes every 10 seconds or so somewhere in the universe, according to the U.S. On average, a supernova will occur once every 50 years in a galaxy the size of the Milky Way (opens in new tab), according to research by the European Space Agency (opens in new tab). The scientists suggested that supernovas happen when ordinary stars collapse into neutron stars. The term "supernova" was first used by Walter Baade and Fritz Zwicky at Mount Wilson Observatory (opens in new tab), who used it in relation to an explosive event they observed, called S Andromedae (also known as SN 1885A), located in the Andromeda Galaxy (opens in new tab). ![]()
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