Earth-like planets in "cosmic graveyards" of dead stars are getting stranger and stranger

Earth-like planets in “cosmic graveyards” of dead stars are getting stranger and stranger

New findings show that Earth-sized planets may be even less likely to survive the violent end-of-life conditions of some stars than previously thought. That means the first exoplanet discovered outside the solar system 30 years ago could be a lot stranger than we thought.

Discovered in 1992 by astronomers Alex Wolszczan and Dale Frail, planet PSR B1257+12B has Earth-like mass and orbits an exotic dead star dubbed Pulsar. The discovery was followed by the revelation that the planet is accompanied by at least two other worlds. Orbiting pulsar PSR B1257+12, these other planets are also similar in size to the rocky worlds of the solar system.

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