What is the hottest thing in the universe?

The hottest thing in the universe we've ever observed is the aftermath of the <a href="https://www.wikiwhat.page/kavramlar/Big%20Bang">Big Bang</a>.

  • Temperature: In the first fractions of a second after the Big Bang, the universe existed in a state called the <a href="https://www.wikiwhat.page/kavramlar/Planck%20epoch">Planck epoch</a>. During this time, the temperature is estimated to have been around 10<sup>32</sup> Kelvin (100 nonillion degrees Celsius or 180 nonillion degrees Fahrenheit). This is the absolute highest temperature that is theoretically possible, known as the <a href="https://www.wikiwhat.page/kavramlar/Planck%20temperature">Planck temperature</a>.

  • Conditions: At these extreme temperatures, the four fundamental forces of nature (strong nuclear force, weak nuclear force, electromagnetism, and gravity) are thought to have been unified into a single, fundamental force. Our current understanding of physics breaks down at these energy levels.

  • Note: While the Big Bang aftermath holds the record for hottest temperature, other extremely energetic events create incredibly hot, but short-lived conditions. For example, particle collisions in the <a href="https://www.wikiwhat.page/kavramlar/Large%20Hadron%20Collider">Large Hadron Collider</a> (LHC) can create quark-gluon plasma at temperatures exceeding several trillion degrees Celsius.