Q&A with Bruce Banerdt, principal investigator on NASA’s InSight mission (members only)

Engineers have so far been unable to restart a balky radar aboard NASA’s Soil Moisture Active Passive environmental satellite launched in January, robbing scientists of the most detailed maps of how much water is locked up in the top layers of Earth’s land masses.

SpaceX’s Crew Dragon “Resilience” spacecraft and Falcon 9 rocket — stretching 215 feet long — are ready for rollout to pad 39A at NASA’s Kennedy Space Center in preparation for the launch of four astronauts Saturday night to the International Space Station.

A new flyby mission selected by the European Space Agency this week for launch in 2028 will be the first to intercept a new comet or interstellar object fresh from the frozen depths of the outer solar system, or beyond.