Probing the Surroundings of Tycho’s Supernova
A supernova that Tycho Brahe studied in 1572 may yet have something to tell us about what causes supernovae.
Have we been hit by a supernova?
Today’s paper describes models of what a nearby supernova would do to a young planetary system, and looks at whether the same may have happened to our own solar system.
A White Dwarf Moving With The Flow
New data from Gaia shows that the white dwarf GD 50 is part of the co-moving group of stars AB Doradus. What does this tell us about the group?
Which Are The Brightest Gravitational Wave Sources In Our Galaxy?
LISA is a space-based mission to detect gravitational waves. What will be the brightest targets it can see?
A white dwarf kicked out of a supernova
A hypervelocity white dwarf might be left over from a Type Ia supernova. Today’s paper studies the white dwarf in detail.