Science
One Supernova, Five Times: SN Winny and the Hubble Tension
A six-year hunt for a one-in-a-million coincidence finally paid off. The same exploding star, repeated five times across the sky, may settle cosmology's loudest fight.
Casey Cooper·
Cosmology
Science
The Universe May End in a Big Crunch
New dark energy data from two hemispheres suggest our cosmos has a 33-billion-year lifespan, with a dramatic collapse already baked into the physics.
Casey Cooper·