The Search for Another Earth-Like Planet Just Took a Big Step Forward
Astronomers have identified an atmosphere on the exoplanet LHS 1140 b, which orbits a red dwarf star 48 light-years away. This discovery is significant because the planet is rocky and located in the habitable zone, making it a prime candidate for further study regarding potential life.
Why it matters
It represents a major milestone in the search for Earth-like planets capable of supporting life by confirming the presence of an atmosphere on a rocky world in a habitable zone.
Located 48 light-years away, the exoplanet—that is, a planet outside our solar system—may be the most similar thing to Earth that researchers have come across. If not a twin then certainly a family member.
Researchers at the Harvard-Smithsonian Center for Astrophysics were able to detect signatures of helium around LHS 1140 b, an exoplanet circling a cool red dwarf. The previously identified body has a rocky composition and is far enough from its host star to be able to retain liquid water on its surface. The team documented their findings in the journal Science this week.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in