His Son Takes Aim at the "Crime Scene" in Space

In space, it takes time to investigate crashes. A European space probe needs almost two years to catch up with the asteroid that Nasa "test-bombed" in 2022. But first, the Hera probe will "play slingshot" around Mars – a maneuver there are different opinions about. It's not that I'm nervous about, says the Swedish project leader Jan H Persson.