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black hole

Black holes can be far larger than we had originally thought! 🌌

#Space exploration #black hole

Black holes can be far larger than we had originally thought! 🌌

Wanna find out how black holes work? Let Brian explain! ✨

Wanna find out how black holes work? Let Brian explain! ✨

NASA discovered water on the sunlit surface of the moon in 2018.

#Space exploration #lunar water

NASA discovered water on the sunlit surface of the moon in 2018.

Do buckyballs offer the key to how life started? 🏐

#Space exploration #buckminsterfullerene

Do buckyballs offer the key to how life started? 🏐

Did you know tsunamis can happen on Mars? 🌊

#Space exploration #water on Mars

Did you know tsunamis can happen on Mars? 🌊

Almost all suns are created with a counterpart, but our Sun has a Nemesis?

#Space exploration #Nemesis

Almost all suns are created with a counterpart, but our Sun has a Nemesis?

Life may exist on Jupiter's moon Europa. 🌝

#Space exploration #Europa

Life may exist on Jupiter's moon Europa. 🌝

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black hole

A black hole is a region of spacetime exhibiting gravitational acceleration so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary of the region from which no escape is possible is called the event horizon. Although the event horizon has an enormous effect on the fate and circumstances of an object crossing it, no locally detectable features appear to be observed. In many ways, a black hole acts like an ideal black body, as it reflects no light. Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe.

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