A recurring cloud over the Martian volcano Arsia Mons turns out to freeze straight out of water vapour, with no dust grain to seed it, a process never before caught in any planetary atmosphere. We also look at the first interstellar detection of fully deuterated methanol by ALMA, a white dwarf that may be feeding on a planet born after its star died, and three quiet dwarf galaxies near M101 found in public archive data by a first year undergraduate.

Astronomers have confirmed Elias 2-24 b, a Jupiter-mass world less than a million years old that is still gathering material inside a gap in its star's disc, making it comfortably the youngest planet ever found. We also look at new supercomputer simulations suggesting Webb's puzzling little red dots are fast-growing black hole seeds, a white dwarf that came back from the dead as a Wolf-Rayet star, and why Venus was never going to keep a moon.