About 4,310 results
Open links in new tab
  1. Proxima Centauri b - Wikipedia

    Proxima Centauri b is an exoplanet orbiting within the habitable zone of the red dwarf star Proxima Centauri in the constellation Centaurus. It can also be referred to as Proxima b, [7] or Alpha Centauri …

  2. Proxima Centauri b - NASA Science

    Jul 29, 2025 · Proxima Centauri b is a super Earth exoplanet that orbits an M-type star. Its mass is 1.07 Earths, it takes 11.2 days to complete one orbit of its star, and is 0.04856 AU from its star. Its …

  3. Proxima Centauri b: Facts About the Closest Exoplanet

    Proxima Centauri b is a rocky exoplanet that orbits Proxima Centauri, the closest star to the Sun. It lies in the habitable zone or the “Goldilocks Zone” of its host star.

  4. The Clearest Image of Proxima B Released by James Webb Telescope …

    Jul 16, 2025 · In a historic astronomical achievement, NASA's James Webb Space Telescope (JWST) has obtained the sharpest photo to date of Proxima b — the Earth-sized exoplanet that circles our …

  5. Inner Workings: All eyes on Proxima Centauri b - PMC

    Almost immediately, a rush of papers appeared, presenting ways to estimate Proxima b’s temperature, atmospheric composition and thickness, and even whether a worldwide ocean spans its surface. The …

  6. Proxima Centauri | Mass, Distance, Planets, & Facts | Britannica

    The European Southern Observatory (ESO) discovered Proxima Centauri b in 2016 and estimated the planet to contain about 17 percent more mass than Earth and thus likely to be a rocky planet as well.

  7. Proxima Centauri b: Proxima Centauri b: Earth’s Nearest Exoplanet ...

    Explore Proxima Centauri B, the closest exoplanet to Earth. Discover its habitability, potential for life, and future exploration in this in-depth guide.

  8. Proxima Centauri b Exoplanet Facts - Universe Guide

    May 24, 2025 · Proxima Centauri b is a Confirmed extrasolar planet (exoplanet) that orbits the star Proxima Centauri in the constellation of Centaurus

  9. Proxima Centauri b - WorldAtlas

    May 13, 2022 · Proxima Centauri b orbits its star at only 4.5 million miles (7.2 million kilometers). That’s about 20 times closer than the Earth orbits the sun and nearly 60-million miles closer than Mercury. It …

  10. Exoplanet Proxima Centauri b - Stellar Catalog

    Information about exoplanet Proxima Centauri b, which orbits star Proxima Centauri in distance of 4.246455 light years from the Sun. The planet is a rocky planet with mass of 1.173 Earth masses.