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European Space Agency detects a unique exoplanet with no known equivalent
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Planet with more water than Earth discovered during unique cosmic photobomb
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Rare planet with no known equivalent discovered
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Numerous exoplanets are orbiting their host star in a very unusual but precise “rhythm”. Scientists made this discovery by focusing on the system’s rhythmic orbital dance.
When astronomers analyzed data collected by NASA’s Transiting Exoplanet Survey Satellite (TESS), they initially discovered three planets orbiting a star called TOI-178. But when they looked more closely at the system, they found that the planets were orbiting in a type of precise rhythm with each other. And after further analysis, they discovered that there are at least six planets in the system.
What’s even more interesting is that the planets are very different from one another. Experts were able to determine that these six planets are anywhere from 1.1 times to 3 times larger than Earth and they all have different densities, from being a rocky super-Earth-like planet to a gassy mini-Neptune.
CHEOPS telescope reveals new planets orbiting star
Artist s impression of a distant planet orbiting a star in the TOI-178 system. Eso/l. Calçada/spaceengine.org
A Swiss-designed telescope travelling on board the CHEOPS space satellite has revealed three previously undiscovered planets orbiting a distant star, whose physical composition raises questions about how planetary systems are formed.
This content was published on January 26, 2021 - 10:52
January 26, 2021 - 10:52
swissinfo.ch/mga
Previous observations of the TOI-178 star had pointed towards a three-planet system. CHEOPS soon found two other planets, with all five orbiting the star over different time spans (two, three, six, ten and 20 days) but in harmony with each other.