Top news for December 21, 2008

Read it in the app

Double pig kidney transplant successfully performed in brain-dead patient

We Have Breached The Safe Planetary Limit For Synthetic Chemicals, Scientists Warn

A ‘trapdoor’ made of muscle and fat helps fin whales eat without choking

Palomar Survey Instrument Shows Astronomical Impact of SpaceX Starlink Satellites

Dementia: How to prevent cognitive decline

Research Shows Supplement Boosts Muscle and Mitochondria Health

Hubble finds a black hole igniting star formation in a dwarf galaxy

Old neurons can block neurogenesis in mice

NASA to Discuss Webb’s Arrival at Final Destination, Next Steps

On this day in space! Oct. 14, 1947: Chuck Yeager smashes the sound barrier.