Astronomers have discovered a new exoplanet orbiting a sun-like star 57 light years away. The exoplanet is four times the size of Jupiter and can actually be seen by Earth-based telescopes.
The planet, named GJ 504b, is the lowest mass exoplanet ever to be detected using direct, or visible, imaging techniques. Most exoplanets – planets outside our solar system — are discovered using indirect methods in which the exoplanet’s existence is inferred, but not actually seen.
GJ 504b’s sun is …
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