For the first time, astronomers have observed a pair of galaxies where one is piercing the other with intense radiation from a quasar powered by a black hole.
The UK's Royal Astronomical Society has endorsed a statement with over 150 European science institutions raising concerns about threats to US academic freedom.
Astronomers have seen convective clouds in the northern regions of Saturn's moon Titan for the 1st time. The methane rains replenish Titan's lakes and seas.