NASA has ceased routine communications with five spacecraft orbiting and roving the surface of Mars through June 21, a period known as solar conjunction.

The U.S. Air Force is investigating an accidental release of sensitive information that occurred leading up to the June 2 request for proposals for the service’s Evolved Expendable Launch Vehicle program.

A roundup of the week's top stories in aerospace and defense.

Los Angeles -- Boeing has been awarded the first crew rotation mission to the International Space Station (ISS) from NASA, marking a key milestone in the agency’s five-year effort to develop an indigenous U.S. capability to launch American astronauts to low earth orbit.

The United Launch Alliance is no longer the only rocket manufacturer capable of winning national security missions in the U.S.

Images gathered May 16 with cameras from an altitude of 4,500 miles have again prompted speculation the spacecraft has spotted ice deposits on the 600 mile wide minor planet.

Our roundup of the top stories in aerospace and defense from the last two weeks.

Russia’s federal space agency will delay near-term International Space Station Soyuz crew and Progress resupply launch and landing operations following the recent failed Progress M-27M cargo mission.