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SCIENCE
Physical - Astronomy
Lowest Temperatures in Space
This list features the lowest temperatures ever recorded in space. The coldest possible temperature is -273.15 °C - this is known as Absolute Zero.
RANK | OBJECT | TEMPERATURE |
1 | Boomerang Nebula | -273 °C |
2 | Melting Point of Helium | -272 °C |
3 | Boiling Point of Helium | -269 °C |
4 | Surface of Quaoar (Dwarf Planet) | -220 °C |
5 | Melting Point of Oxygen | -218 °C |
6 | Uranus | -216 °C |
7 | Dark Side of the Moon | -184 °C |
8 | Boiling Point of Oxygen | -183 °C |
9 | Surface of Mercury (at night) | -173 °C |
10 | Clouds of Jupiter | -145 °C |
11 | Surface of Callisto (Moon of Jupiter) | -139 °C |
References
Visual Capitalist (n.d.) Extreme temperatures in the universe. Available at: https://www.visualcapitalist.com/extreme-temperatures-in-the-universe/ [Accessed 1 December 2025].
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