The following list includes some of the potentially habitable exoplanets discovered so far. It is mostly based on estimates of habitability by the Habitable Worlds Catalog (HWC), and data from the NASA Exoplanet Archive. The HWC is maintained by the Planetary Habitability Laboratory at the University of Puerto Rico at Arecibo. [1]

2025年3月24日 · We've found thousands of planets in our Milky Way galaxy, a large fraction of them in Earth's size range and orbiting in their stars' "habitable zones" – the distance from the star at which liquid water could exist on the surface. We know the …

October 29, 2020, Mountain View, CA – Thanks to new research using data from the Kepler space telescope, it’s estimated that there could be as many as 300 million potentially habitable planets in our galaxy. Some could even be pretty close, with several likely within 30 …

18 小时之前 · Hycean planets are expected to orbit red dwarf stars, and the best candidate for a hycean world is the planet K2-18b. This exoplanet, which is categorized as a "sub-Neptune" world, orbits in the ...

2020年10月29日 · Nine years of the telescope’s observations revealed that there are billions of planets in our galaxy – more planets than stars. “Kepler already told us there were billions of planets, but now we know a good chunk of those planets might be rocky and habitable,” said the lead author Steve Bryson, a researcher at NASA’s Ames Research ...

2025年3月24日 · Habitable zones potentially capable of hosting life-bearing planets are wider for hotter stars. Smaller, dimmer red dwarfs, the most common type in our Milky Way galaxy, have much tighter habitable zones as in the TRAPPIST-1 system.

2020年1月10日 · Extrapolating out to the rest of the galaxy, scientists estimate that the Milky Way could contain upwards of 50 billion planets, 500 million of which could be in their stars' habitable zones. That's a lot of planets to discover!

2025年3月2日 · Planets appear to be common around stars in our home galaxy, the Milky Way. ... Astronomers at UC Irvine said on February 13, 2025, that white dwarfs could indeed host habitable planets.

2025年3月15日 · The innermost planet in the system is planet d (the planets are named in order of discovery, not distance from the star), which has a mass just 26% that of Earth's and orbits Barnard's Star every ...

4 天之前 · The work has implications for potentially habitable exoplanets with a hydrogen atmosphere overlying a water ocean, depending on the planets’ internal temperatures. ... Recent studies show that the most common type of planets in our galaxy, those between the sizes of Earth and Neptune, typically form with a hydrogen atmosphere, resulting in ...