More than 20 states are suing the Trump administration for rescinding some $7 billion in Congress-approved funds to equip ...

The attorneys general of more than a dozen states on Thursday sued the Trump administration over the termination of $7 ...

"The mental weight of carrying around these unresolved things is incredibly draining," Scott Clary told Newsweek.

Evolving dark matter may explain cosmic acceleration. Observations support a mixed model. For years, a stubborn puzzle has ...

As Democrats demand an extension of Affordable Care Act subsidies to end the shutdown, Republicans are grappling with another ...

Johns Hopkins researchers may have identified a compelling clue in the ongoing hunt to prove the existence of dark matter. A ...

Russell M. Kulsrud, 97, a pioneering theoretical physicist whose work helped define the modern fields of plasma physics and ...