![We Asked a NASA Technologist: How Do Spacecraft Slow Down? [Video]](https://i.headtopics.com/images/2022/11/12/scitechdaily1/we-asked-a-nasa-technologist-how-do-spacecraft-slo-we-asked-a-nasa-technologist-how-do-spacecraft-slo-1591218772924600321.webp)
How do spacecraft slow down? Rigid heat shields and retropropulsion have been the favorites of engineers for years. Now NASA is testing a new inflatable heat shield technology that could allow us to carry even larger payloads to worlds with atmospheres. Launched on November 10 aboard a United Lau
In this illustration of its descent to Mars, the spacecraft containing NASA’s Perseverance rover slows down using the drag generated by its motion in the Martian atmosphere. Credit: NASA/JPL-Caltech
If not, you definitely want to go with retropropulsion, where you use retro thrusters pointed down at the surface of the planet to slow yourself down as you’re coming in. This reel depicts key events during entry, descent, and landing that occurred when NASA’s Perseverance rover landed onon February 18, 2021. In the span of about seven minutes, the spacecraft slowed down from about 12,100 mph at the top of the Martian atmosphere to about 2 mph at touchdown in an area called Jezero Crater. Credit: NASA/Here at NASA, we’re constantly developing new technologies to help with that entry, descent, and landing, or EDL.
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