Did early Earth order delivery, or did it make its oceans at home?
Could interactions between a magma ocean and early hydrogen rich atmosphere have created liquid water on Earth?
Newly discovered planet AF Lep is leading its star astray
Direct imaging exoplanets is difficult, but a new method of vetting targets has just helped three independent teams discover, and image, a new gas giant.
US Graduate Workers Strike Back – a year in review of graduate student union activity
Most astronomy is done by graduate students, but many aren’t compensated fairly or treated well. Ongoing struggles to unionize, especially in the past year, might give the confused and frustrated graduate student hope headed into 2023.
Dancing with the (Six) Stars, or, a 200 year story of the Castor system
Astronomers study the orbits of a sextuplet system, an absurdly complex arrangement of six stars in orbit around one another, in order to measure their masses once and for all.
Fly-bye, Baby: a review of the impact of stellar flybys on protoplanetary disks
Protoplanetary disks don’t exist in isolation; when young stars pass each other by, their gravitational encounter can disrupt, or maybe even kickstart, planet formation.