Ten Whales’ Worth of White Dwarf Accretion
Measuring exoplanet composition by studying a white dwarf’s atmosphere
Driving planetary dynamos by giant impacts
Earlier than one billion years ago, Earth’s magnetic field had to be driven differently than today. But how? And what can we learn from this about magnetic fields on exoplanets?
There are weird dots in the sky…
Sometimes a mystery can hide in apparently plain things. Astronomers have just discovered that a delta Scuti star known for over 40 years is actually something entirely different and full of peculiarities.
Image via M. Garlick/University of Warwick, ESA/Hubble.
Catching a small galaxy in the act of formation
A dwarf irregular galaxy in the Lynx-Cancer void is cannibalizing its neighbors.
Dinnertime for an Active Galaxy
A star being swallowed by a black hole, and with an unusual host galaxy.
Double Bubble Galaxy
M31 discovered to be blowing vast bubbles of gamma rays, just like our own galaxy.