Physicists have measured an atom's 'neutron skin' for the first time

Nuclear rocket engines were studied by NASA as part of project NERVA in 1959. The idea was abandoned in the 1970s, but now NASA wants proposals for a flight demonstration as quickly as 2026, as a potential propulsion system for crewed missions to Mars.

Sharks Use Earth’s Magnetic Fields to Guide Them Like a Map – “It Really Is Mind Blowing”

In Shocking Move, U.S. Backs Waiving Patents on COVID Vaccines