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Proxima B

All articles tagged with #proxima b

science18 days ago•11 min saved

Laser sails could reach Alpha Centauri in decades, while Proxima b’s life status remains unresolved

Alpha Centauri, the nearest star system at 4.24 light-years, remains unreachable with today’s tech—Voyager-like speeds would take about 75,000 years to Proxima Centauri, while a laser-sail concept like Breakthrough Starshot could reach in decades but faces major engineering hurdles (huge lasers, durable sails, long-lasting electronics, and reliable communication). Proxima b sits in the habitable zone, but that does not guarantee water, atmosphere, or life, and atmospheric loss could be significant; no confirmed signs of life exist. In short, a tiny robotic probe might someday reach Alpha Centauri, but a real second Earth there is not yet proven.

via Space Daily|

#alpha-centauri #breakthrough-starshot #interstellar-travel

space3 years ago•1 min saved

Elon Musk Eyes Distant Planet for Exploration.

Elon Musk expressed interest in visiting Proxima Centauri B, an exoplanet located over four light-years away in the Alpha Centauri star system. Proxima B is believed to be potentially habitable, sitting in the "habitable zone" away from its star where liquid water could exist. However, the exoplanet also experiences bouts of extreme ultraviolet radiation that may limit its habitability. While it's not exactly close by human standards, Musk remains intrigued by the possibility of exploring the planet, but only for research purposes.

via Futurism|

#elon-musk #exoplanet #habitable-zone

astronomy3 years ago•1 min saved

Proxima b: A Promising Candidate for Our Next Home?

Proxima b, a highly habitable exoplanet just 4.2 light-years away from Earth, could potentially sustain vast oceans of liquid water, according to recent breakthrough research. The exoplanet, which orbits a red dwarf star, has been the subject of numerous studies, with its potential for habitability volleying between high hopes and sharp letdowns. However, new simulations suggest that Proxima b's moving ocean could cover a significant area, even seeping into parts of the nightside, making the idea of an oceanic Proxima b no longer a distant tide in the scientific community.

via Times Now|

#astronomy #exoplanet #habitability

astronomy3 years ago•4 min saved

Searching for Extraterrestrial Life in Alpha Centauri

The Alpha Centauri system is a prime target for the search for extraterrestrial life due to its proximity and potential for rocky, habitable planets. Proxima b, the confirmed planet in the habitable zone, may not be suitable for life due to its proximity to its star and lack of a magnetic field. The possible Neptune-size planet around Alpha Centauri A is likely a gas giant, but the search for a rocky, potentially habitable planet continues. A new propulsion system, pellet-beam propulsion, has been proposed that could potentially reach interstellar space in less than five years, but the distance to Alpha Centauri remains a significant challenge.

via Big Think|

#alpha-centauri #astronomy #habitable-zone