The adjustment of the Webb Telescope's (JWST) mirrors and instruments is now complete. This means that the telescope can take images in optimal sharpness with all cameras.
The planet around the star HD 209458 was the first discovered to transit its star. Now the space telescope CHEOPS has measured reflected light from the planet by observing how flux from the star-planet system decreases.
A new kind of stellar explosions are described in the latest issue of the journal Nature coined Type Icn supernovae.