K2-18b, also known as EPIC 201912552 b, is an exoplanet orbiting the red dwarf K2-18, located 124 light-years (38 pc) away from Earth. It was discovered by the Kepler space telescope. It is estimated to be eight times bigger than the Earth. K2-18b is in the Goldilocks zone and may have liquid water.[1]
References
2023 in space |
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| Space probe launches | |
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| Impact events | |
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| Selected NEOs |
- Asteroid close approaches
- 2023 AV
- 2023 BU
- (367789) 2011 AG5
- 2023 DW
- 2023 DZ2
- 2023 GQ2
- (164121) 2003 YT1
- (341843) 2008 EV5
- 2023 FW13
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| Discoveries |
- F200DB-045
- Rings of Quaoar
- WISE J0336−0143
- CEERS 1019 black hole
- UHZ1 quasar
- Volcanism on Venus confirmation
- 3 moons of Jupiter
- 63 moons of Saturn
- SN 2023ixf supernova in Pinwheel Galaxy (M101)
- SN H0pe supernova in Constellation Ursa Major
- Phosphates on Enceladus
- Gravitational wave background detection
- Neutrino Milky Way map
- GRB 230307A Second-brightest gamma-ray burst
- 152830 Dinkinesh is a binary
- Ursa Major III
| | Exoplanets |
- HD 110067
- LHS 475 b
- TOI-672 b
- TOI-700 e
- TOI-3235 b
- WASP-193b
- Silicates in VHS J1256–1257 b
- No atmosphere in TRAPPIST-1b
- No atmosphere in TRAPPIST-1c
- K2-18b of methane and carbon dioxide
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| Comets |
- C/2022 E3 (ZTF)
- 96P/Machholz
- C/2023 A3 (Tsuchinshan–ATLAS)
- C/2023 E1 (ATLAS)
- C/2021 T4 (Lemmon)
- C/2023 P1 (Nishimura)
- 103P/Hartley
- 2P/Encke
- C/2023 H2 (Lemmon)
- 62P/Tsuchinshan
- 12P/Pons–Brooks brightening multiple times
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| Space exploration |
- Lucy (Dinkinesh flyby; November 2023)
- OSIRIS-REx (sample return from asteroid Bennu; September 2023)
- First space-based solar power demonstration
- Euclid Space telescope (launch; 1 July 2023)
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