Analysis - The Southern African Large Telescope (SALT) celebrates 20 years of observing the sky. SALT is the largest optical telescope in the southern hemisphere. It's been steadily revealing new ...
Data from the NSF-funded Zwicky Transient Facility pinpointed the energy source: J2245+3743, an active galactic nucleus 500 ...
Interstellar comet 3I/ATLAS brightened up near the Sun at perihelion, and also lost a lot of mass, both of which were several magnitudes more than expected. Recent images show strange jet structures ...