Hunting for stellar splashback: defining the size of a galaxy cluster
How big is a galaxy cluster? Today’s authors use the remnants of destroyed galaxies to define the edge of galaxy clusters.
Spotting Spots on Other Stars
What does the surface of a star look like? Today’s authors observe ζ And using long-baseline interferometry to find out!
Glimpsing Dark Objects with Gaia
Today’s authors work out a full orbital solution for a binary microlensing system, indicating the method’s potential to probe the mass distribution of dark objects.
Stuck in the Middle: A New Gamma-Ray Burst Defies the Norm
Even for stellar explosions, this gamma-ray burst is a weird one!
Taking better astronomical images, with machine learning!
Too many cool science projects, not enough telescope time. Can machine learning help solve this problem?
An eerily mature galaxy from the first 2 billion years
Something unexpected is peering out through the void