White Dwarf HS 0209+0832 May Host First Rebuilt Planet
Astronomers may have identified the first second-generation planet candidate around a white dwarf a possible Jupiter-sized world assembled from material…
exoplanets
Beta Pictoris b Bursts Suggest Field at Least 200 Times Jupiter’s Strength
Repeating radio bursts apparently traced to Beta Pictoris b may expose an extraordinary feature hidden around the distant gas giant:…
GJ 523b Has 23 Earth Masses but Very Little Atmosphere
GJ 523b presents an awkward combination for conventional planet-formation expectations: It has approximately 23 times Earth’s mass but very little…