Jared Isaacman is now NASA's 15th administrator. The Senate approved him, paving the way for crucial missions. Isaacman will lead the Artemis program, aiming to land humans on the Moon again. He also plans for Mars exploration. His experience in private spaceflight is expected to boost collaboration. NASA faces challenges including budget cuts and personnel reduction.

The Falcon 9 rocket launching the Starlink 15-13 mission will fly on a south-easterly trajectory upon leaving pad 4E at Vandenberg Space Force Base. Liftoff is for 7:22 a.m. PST (10:22 a.m. EST / 1522 UTC).

A new study is the latest of several recent research papers documenting the physical toll of January's fires.

California researchers are preparing for the possible return of the New World screwworm, a parasitic fly that feeds on living flesh and once devastated U.S. livestock. By monitoring traps and educating veterinarians and farmers, they hope to stop the pest before it gains a foothold.

A new study finds that invasive brown anoles become more aggressive toward native green anoles as temperatures rise.