The mission's team has chosen to operate its seismometer longer than previously planned, although the lander will run out of power sooner as a result.

As the power available to NASA's InSight Mars lander diminishes by the day, the spacecraft's team has revised the mission's timeline in order to maximize the science they can conduct.

NASA's fourth attempt to complete a critical test of its Moon rocket achieved around 90 percent of its goals, but there's still no firm date for the behemoth's first flight, officials said Tuesday.

Known as the "wet dress rehearsal" because it involves loading liquid propellant, it is the final item to cross off the checklist before the Artemis-1 mission slated for this summer: an uncrewed lunar flight that will eventually be followed by Moon boots on the ground, likely no sooner than 2026.

Teams at the Kennedy Space Center began their latest effort to complete the exercise on Saturday.

Their objectives were to load propellant into the rocket's tanks, conduct a launch countdown and simulate contingency scenarios, then drain the tanks.