Magnitude: The Scale of the Universe by Watzke Megan & Arcand Kimberly

Author:Watzke, Megan & Arcand, Kimberly [Watzke, Megan]
Language: eng
Format: azw3
Publisher: Hachette Books
Published: 2017-11-21T05:00:00+00:00

9 Supernova Explosion

1010 K

When a star many times the size of our Sun runs out of fuel, it collapses and then explodes as a brilliant supernova. Sometimes, a supernova event can outshine all the light in its host galaxy. Sometimes a dense stellar core, called a neutron star, is created. Inside these objects, temperatures can reach—pardon the pun—astronomical limits.

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A supernova explosion is about 20 times hotter than a black hole accretion disk.

10 Planck Temperature

1032 K

Scientists have come up with a temperature that doesn’t have many practical applications. That’s because if anything ever were to get this hot, all known physics would cease to work. This perilous point is calculated to be 100 million million million million million degrees—give or take a few.

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The highest temperature that matter could theoretically be is about ten sextillion times (1 followed by 22 zeroes) hotter than a supernova explosion.

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