--- title: Potential Earth-Like Planet Discovered One Star Away description: Scientists have discovered a planet in the star system next door that may have certain similarities to Earth canonical: https://time.com/4464833/earth-like-planet-discovered-one-star-away/ author: Sarah Begley article:opinion: false article:content_tier: free article:published_time: 2016-08-24T18:10:39.000Z article:modified_time: 2026-02-23T00:10:52.330Z article:section: Science og:title: Potential Earth-Like Planet Discovered One Star Away og:description: The planet is 4.2 light-years away from Earth og:url: https://time.com/4464833/earth-like-planet-discovered-one-star-away/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltc709bf620f29dc0b/6988a382196cf4f4da03cf43/2016-08-24t170428z_954679962_tm3ec8n13.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 og:image:width: 1200 og:image:height: 675 og:image:alt: The planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to our Solar System, is seen in an undated artist's impression og:type: article twitter:card: summary_large_image twitter:title: Potential Earth-Like Planet Discovered One Star Away twitter:description: The planet is 4.2 light-years away from Earth twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltc709bf620f29dc0b/6988a382196cf4f4da03cf43/2016-08-24t170428z_954679962_tm3ec8n13.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 ---  # Potential Earth-Like Planet Discovered One Star Away by [Sarah Begley](https://time.com/author/sarah-begley/) ## Sarah Begley Aug 24, 2016 6:10 PM UTC  The planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to our Solar System, is seen in an undated artist's impression. The planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to our Solar System, is seen in an undated artist's impression.M. Kornmesser—ESO/Reuters by [Sarah Begley](https://time.com/author/sarah-begley/) ## Sarah Begley Aug 24, 2016 6:10 PM UTC Scientists have discovered a [planet](http://www.nytimes.com/2016/08/25/science/one-star-over-there-might-be-another-earth.html?smid=tw-nytimes&smtyp=cur&%5Fr=0) in the star system next door that may have certain similarities to Earth. The planet orbits the star Proxima Centauri, and while it is much closer to the star (5 million miles away) than [Earth](http://time.com/3969886/nasa-discovers-earth-planet/) is to its sun (93 million miles away), Proxima Centauri is a red dwarf, much smaller and dimmer than our sun, the New York _Times_ reports. That puts the planet, Proxima b, in the safe zone: neither too hot nor too cold for water, and therefore, potentially life. What’s more, the star system’s proximity to our [solar system](http://time.com/4184942/planet-9-new-pluto-solar-system/) means it could be studied by scientists in the not-too-distant future: the planet is 4.2 light-years away from Earth, and while it can’t be seen from current telescopes (scientists discovered it by looking at wobbles in starlight), future generations of the technology may be capable of sighting it. Robotic probes could also be dispatched to research the planet. Proxima b is estimated to be at least 1.3 times the size of Earth, though possibly much bigger. It orbits its star in just 11.2 days, and its gravitational pull may mean that one side is perpetually in light and the other perpetually in darkness. \[[_NYT_](http://www.nytimes.com/2016/08/25/science/one-star-over-there-might-be-another-earth.html?smid=tw-nytimes&smtyp=cur&%5Fr=0)\] Potential Earth-Like Planet Discovered One Star Away ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/4464833/earth-like-planet-discovered-one-star-away/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/4464833/earth-like-planet-discovered-one-star-away/"},"headline":"Potential Earth-Like Planet Discovered One Star Away","datePublished":"2016-08-24T18:10:39.000Z","dateModified":"2026-02-23T00:10:52.330Z","description":"The planet is 4.2 light-years away from Earth","url":"https://time.com/4464833/earth-like-planet-discovered-one-star-away/","keywords":["Space"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/bltc709bf620f29dc0b/6988a382196cf4f4da03cf43/2016-08-24t170428z_954679962_tm3ec8n13.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Sarah Begley","jobTitle":null,"url":"https://time.com/author/sarah-begley/"}],"articleSection":"Science","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/bltc709bf620f29dc0b/6988a382196cf4f4da03cf43/2016-08-24t170428z_954679962_tm3ec8n13.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"The planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to our Solar System, is seen in an undated artist's impression","caption":"The planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to our Solar System, is seen in an undated artist's impression","creditText":"M. Kornmesser—ESO/Reuters","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/science/","name":"Science"}},{"@type":"ListItem","position":2,"item":{"@id":"/tag/space/","name":"Space"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/4464833/earth-like-planet-discovered-one-star-away/","name":"Potential Earth-Like Planet Discovered One Star Away"}}]}] ```