Tag Archives: Proxima Centauri b

Huge Proxima Centauri flare blasts nearest exoplanet Proxima b

On March 24, 2017, astronomers led by Carnegie’s Meredith MacGregor and Alycia Weinberger discovered that a giant stellar flare erupted from Proxima Centauri, the closest star to the Sun (Proxima Centauri means ‘nearest [star] of Centaurus’), using data from the Atacama Large Millimeter/submillimeter Array (ALMA). The huge flare was 10 times larger than a major solar flare. And it blasted Proxima Centauri b (also called Proxima b), the exoplanet orbiting within the habitable zone of Proxima Centauri, with 4,000 times more radiation than Earth gets from solar flares. The event probably wiped out the exoplanet’s atmosphere (if exists any), and dimmed the last hopes of extraterrestrial life on it. This finding is published in The Astrophysical Journal Letters on February 22, 2018.

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Water found on the exoplanet 51 Pegasi b

Scientists spotted water in the atmosphere of 51 Pegasi b, one of the first exoplanets ever been discovered. It is around 50 light years away – so we can call it a “nearby” exoplanet – and it is in the constellation of Pegasus.

51 Pegasi b has not marked a breakthrough in astronomical research for the first time: back in 1995, it was the first exoplanet to be discovered orbiting a main-sequence star. The first confirmed exoplanet discovery came in 1992 when several terrestrial-mass planets orbiting the pulsar PSR B1257+12.

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Proxima Centauri b May Have Oceans

Proxima Centauri b, the Earth-like planet orbiting the red dwarf Proxima Centauri may have oceans, scientists say. The planet was discovered in August 2016 and caused excitement because it’s in the habitable zone of its star, and it’s rocky. And it’s in the Alpha Centauri, the closest star system to us!

Researches of France’s National Center for Scientific Research (CNRS) have calculated the size and surface properties of the planet and concluded it may be an “ocean planet” similar to Earth. There are possibilities, though, it may have continents and oceans like Earth, or its entire surface may be covered by a massive ocean.

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Proxima Centauri b: Did We Find Earth’s Cousin?

On August 24, 2016, a group of scientists led by Dr. Guillem Anglada-Escude at the Queen Mary University of London, announced the discovery of a terrestrial exoplanet orbiting the red dwarf Proxima Centauri, the nearest known star to the Sun. Proxima Centauri is a Latin idiom, meaning “nearest (star) of Centaurus” (1). The new planet is named Proxima Centauri b and it is predicted to be orbiting within the habitable zone!

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