In this video, astronaut Charlie Duke, the youngest of the only 12 people to have walked on the moon and one of four still alive today, reacts to popular moon landing conspiracy theories. As the Lunar ...

In “Slingshot,” a space travel thriller directed by Mikael ... Titan, will need a gravity assist — the “slingshot” in question — from Jupiter’s orbital velocity in order to make ...

as part of gravity assist to gain some of the orbital energy it needs to travel to this never-before-visited population of asteroids. NASA's Lucy spacecraft captured the image of Earth at a ...