Laser propulsion: NASA's laser-powered spacecraft will fly to Mars in 72 hours

The video discusses laser-based propulsion, where photons from a laser beam reflect off an object, converting energy into momentum to move spacecraft. This technology allows for lightweight spacecraft without fuel, capable of reaching 30% of light speed. It could enable a robotic mission to Mars in three days and a manned mission in a month.

What is the principle behind laser-based propulsion?

How do photons contribute to the movement of spacecraft in laser propulsion?

What are the potential benefits of using laser propulsion for spacecraft?

What speed can spacecraft potentially reach using this technology?

How long could it take to send a manned shuttle to Mars using laser propulsion?