NASA has not reestablished contact with its MAVEN Mars orbiter since a planned communications blackout ended Jan. 16.

NASA is spending this week trying to rouse a veteran Mars orbiter that has not answered a single call in more than a month, a silence that threatens one of the agency’s most productive planetary ...

A Mars spacecraft that has been orbiting the red planet for more than a decade has now been AWOL for more than a month. NASA first lost contact with its MAVEN orbiter at the beginning of December.

A rock and a hard place ...

NASA’s DART mission changed the Dimorphos' asteroid orbit around the Sun, proving spacecraft impacts could help defend Earth.

WASHINGTON — NASA has provided new details about its plans to procure a Mars communications orbiter funded under last year’s budget reconciliation bill as companies continue positioning themselves to ...