Our universe's lack of super-Earths or mini-Neptunes could be caused by some planets migrating toward the hearts of their systems early on in their lives.
A young star's extreme outburst could show us the violent conditions that may be experienced by planets, including those of the solar system, as they form in infant systems.
Infant exoplanets may not be spherical as astronomers have always assumed. Instead, they may be oblate spheroids, like the 'Smarties' candy found in Europe.
Do the Milky Way's most common planets, mini-Neptunes, have atmospheres filled with opaque clouds or a more transparent haze?
NASA's exoplanet-hunting spacecraft TESS has spotted a 'super-Earth' in the habitable zone of its red dwarf star, with indications it may have Earth-sized company.
NASA's TESS telescope has discovered a system of six young exoplanets that race around a newborn star, offering a snapshot of what our solar system looked like 4 billion years ago.
Recent research suggested the first and only moons seen around planets outside the solar system didn't actually exist; now, the scientists who initially found them are back to defend their discovery.
The Hubble Space Telescope has spotted water in the atmosphere of a tiny planet with temperatures around that of Venus, meaning it's a hot and steamy world.
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