The rate of the universe’s expansion has vexed astronomers for decades.
The Webb Space Telescope recently turned its focus to a nearby exoplanet and found that it may be a Hycean world, or a world completely covered in a single global ocean, and with a hydrogen atmosphere. And what’s more, the telescope detected a possible detection—note, possible detection, of dimethyl sulfide, a…
Researchers have trained the unrelenting gaze of the Webb Space Telescope on Earendel, the most distant star ever detected, revealing the star’s color and a potential companion star.
The James Webb Space Telescope captured the eerie punctuation mark, found buried within an image of Herbig-Haro 46/47—a tightly bound pair of actively forming stars located 1,470 light years from Earth.
NASA/ESA/Pieter van Dokkum et al./Astrophysical Journal Letters 2023
NASA/ESA/Kruk et al.