The proposed formation process may be broadly applicable across solar systems.
Previous research suggested planetary systems begin as large spinning disks of gas and dust. These"protoplanetary disks" consolidate over the course of a few million years or so, with most of the gas concentrating on the star at the center of the system, while solid material slowly coalesces into asteroids, comets, planets and moons.
Now, in the new study, the scientists investigated whether this concept of multiple distinct rings in protoplanetary disks might help explain super-Earths as well.
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Astronomers find 2nd Earth-size planet in intriguing alien solar systemMeghan is a senior writer at Space.com and has more than five years' experience as a science journalist based in New York City. She joined Space.com in July 2018, with previous writing published in outlets including Newsweek and Audubon. Meghan earned an MA in science journalism from New York University and a BA in classics from Georgetown University, and in her free time she enjoys reading and visiting museums. Follow her on Twitter at meghanbartels.
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Second potentially habitable Earth-size planet found orbiting nearby star | CNNA second Earth-size exoplanet has been spotted orbiting the small star TOI 700, located about 100 light-years away. Astronomers used NASA's planet-hunting TESS mission to spot the fourth world in the planetary system.
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NASA satellite discovers second Earth-sized planet in habitable zoneCalled TOI 700 e, the planet is part of the TOI 700 system and is 95% the Earth's size and likely rocky, according to NASA, which used data from its Transiting Exoplanet Survey Satellite.
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NASA has discovered an Earth-sized planet orbiting in the habitable zone of its starA habitable zone is an area just the right distance from a star so water can exist on a planet's surface and the conditions are neither too hot nor too cold for life.
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NASA's TESS discovers another Earth-like planet with potential for habitability - KRLD NewsNASA has discovered another Earth-sized exoplanet within the habitable zone of its home star. The discovery was made utilizing information from NASA's Transiting Exoplanet Survey Satellite (TESS). The rocky planet, dubbed TOI 700 e, is approximately 95% the size of Earth, according to NASA. TOI 700 e is the fourth planet discovered in this system, but only the second that orbits in the star's 'Goldilocks zone,' the area around a star in which a planet can sustain liveable temperatures and liquid water. NASA says the planet, located 100 light-years from Earth, orbits around a small M dwarf star along with two other planets in the constellation Dorado.
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WATCH: NASA discovers Earth-sized, habitable planet in other solar systemNASA has discovered an Earth-sized planet that is considered 'habitable.'
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