Epsilon Indi AB, the cold giant imagined by Star Trek

Exoplanet Epsilon Indi AB

Among the many observation modes provided by the James Webb Space Telescope, the one called “MIRI with chronograph” allows the detection of planets in the mid-infrared that would otherwise be obscured by the light of their own star. This is the case of Epsilon Indi AB, a gas giant six times the size of Jupiter, with an average temperature of just above zero [...]

A “snowball” exoplanet with an ocean of liquid water?

Exoplanet Lhs 1140 b

The latest observations from the James Webb Telescope have opened up a new scenario for the already known exoplanet Lhs 1140 b, one of the most promising in the habitable zone of its star, a low-mass red dwarf, about one-fifth the size of the Sun, potentially capable of hosting an atmosphere and even an ocean of liquid water. […]