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.

ALMA spots a disc of gas and dust around an exoplanet in the PDS 70 system, which may hint at moon-formation mechanisms.

The new images released by the European Southern Observatory (ESO) are not just straight up beautiful, they also take the research into star formation one huge step forward.

13.1 billion years old galactic wind from J1243+0100’s black hole sheds light on how galaxies grow.