Air and Space

The $2 billion Alpha Magnetic Spectrometer could resume its hunt for elusive antimatter and dark matter by midweek.

Liftoff is now set for Sunday at NASA's Kennedy Space Center.

The Commerce Department said new export rules take effect Monday that target emerging technology that could give the U.S. a significant military or intelligence advantage.

The Starliner descended into the Army's White Sands Missile Range in the frigid predawn darkness, ending a two-day demo that should have lasted more than a week. A trio of red, white and blue parachutes popped open and airbags also inflated around the spacecraft to ease the impact.

The prototype missile was configured to be armed with a non-nuclear warhead. The Pentagon declined to disclose specifics beyond saying the missile was launched from a “static launch stand” at Vandenberg Air Force Base in California and landed in the open ocean. The Defense Department said the ballistic missile flew more than 500 miles.

SpaceX has launched 60 mini satellites, the second batch of an orbiting network meant to provide global internet coverage.   

The solar system's smallest, innermost planet will resemble a tiny black dot Monday as it passes directly between Earth and the sun. It begins at 7:35 a.m. EST. 

Astronauts hustled through the first of five spacewalks to replace old batteries at the International Space Station on Sunday. Christina Koch and Andrew Morgan removed three old batteries and installed two new ones delivered just a week ago, getting a jump on future work. These new lithium-ion batteries are so powerful that only one is needed for every two old ones.