We don’t have an equivalent to this type of planet, called a sub-Neptune, in our solar system, but now the James Webb Space Telescope ... dioxide — but notably, no indications of methane ...

Astronomers using the James Webb Space Telescope (JWST ... By comparing the system's position to background stars a year ...

Over the past decade or so, astronomers have speculated about the characteristics of rogue planets ... space passes in front of another one. What we see is a 'dimming' of the light from the ...