Spacetime With Stuart Gary

63: An Earth-like atmosphere may not survive Proxima b's orbit

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Sinopsis

Stream episodes on demand from www.bitesz.com (mobile friendly) * An Earth-like atmosphere may not survive Proxima b's orbit Proxima B -- the nearest known exoplanet to our solar system is probably a dead world despite being in the habitable zone of its host star Proxima Centauri. Any Earth-sized world would most likely be unable to hold onto an atmosphere -- leaving its surface exposed to harmful stellar radiation and reducing its potential for habitability. *New clues in determining the size of a black hole Astronomers have discovered what could be an easy way to determine the size of a spiral galaxy’s supermassive black hole. They’ve found a direct relationship between the geometry of some types of spiral galaxies and the hidden supermassive black hole at their centres. *Calm seas on Titan could mean smooth landing for future space probes Astronomers have determined that the lakes and season the Saturnian moon Titan have few waves higher than a centimetre. The findings mean the giant moon probably has litt