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Explanation: The star closest to the Sun has a planet similar to the Earth. As announced yesterday, recent observations confirmed that this planet not only exists but inhabits a zone where its surface temperature could allow liquid water, a key ingredient for life on Earth. It is not yet known if this planet, Proxima b, has any life. Even if not, its potential ability to sustain liquid water might make it a good first hop for humanity's future trips out into the Milky Way Galaxy. Although the planet's parent star, Proxima Centauri, is cooler and redder than our Sun, one of the other two stars in the Alpha Centauri star system is very similar to our Sun. The featured image shows the sky location of Proxima Centauri in southern skies behind the telescope that made many of the discovery observations: ESO's 3.6-meter telescope in La Silla, Chile. The discovered planet orbits close in -- so close one year there takes only 11 days on Earth. The planet was discovered by the ESO's Pale Red Dot collaboration. Although seemingly unlikely, if Proxima b does have intelligent life, at 4.25 light years distance it is close enough to Earth for two-way communication.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: Proxima Centauri - extrasolar planet
Publications with words: Proxima Centauri - extrasolar planet
See also:
- Temperatures on Exoplanet WASP 43b
- Epsilon Tauri: Star with Planet
- APOD: 2023 October 17 Á PDS 70: Disk, Planets, and Moons
- APOD: 2023 September 20 Á Methane Discovered on Distant Exoplanet
- APOD: 2023 June 6 Á Star Eats Planet
- APOD: 2023 February 1 Á The Seventh World of Trappist 1
- APOD: 2023 January 24 Á LHS 475 b: Earth Sized Exoplanet