Free Republic

A satellite experiment has revealed that the heaviest known neutron star is unexpectedly large, which suggests that the matter in the star’s inner core is less “squeezable” than some models predict. NICER measures the size of a neutron star by tracking the x-ray emission from “hot spots” on the surface as the star rotates. These spots occur at the magnetic poles of the star, where the field slams particles onto the star surface. Neutron stars are “cosmic zombies”­—corpses of massive stars that collapsed in violent explosions after running out of fuel. By studying these ultradense objects, researchers hope to understand...

WASHINGTON - On this presidential rivals Barack Obama and Hillary Rodham Clinton can agree: They sometimes disagree with their trash-talking supporters and will try to cool it. Advisers to the Democratic candidates shed some light Friday on the private chat the two candidates had Thursday on the Senate floor. The talk lasted three or four minutes in full view of reporters watching on the balcony above who could see them talking, but not hear what they said. "They approached one another and spoke about how supporters for both campaigns have said things they reject," said Clinton spokesman Phil Singer. "They...