NASA's powerful Artemis II rocket is set to launch in Florida, sending four astronauts around the moon. Here's what to expect during liftoff.

The countdown has begun toward humanity’s first launch to the moon in 53 years. NASA’s countdown clocks started ticking late Monday afternoon at Florida’s Kennedy Space Center.

It's been fifty years since people from Earth stepped foot on the moon. It was an event watched worldwide; 500 million people tuned in. But how did they capture the footage on the moon? And how did they broadcast it back to the Earth?