Back in 2016, talks of drone delivery was all the hype — order what you need online, and it's delivered by air potentially minutes later. Six years later, the buzz surrounding delivery drones is limited to very few test areas. What changed and why did it never take off?

The internet is full of junk. We find the good stuff for you, from helpful tools to get stuff done to the best apps and websites out there.

Batteries may seem like a recent invention, but a discovery made in the Middle East may change how you think. Designed almost 2,000 years ago, the Baghdad Battery appears to work like a modern battery. But what would happen if someone recreated it?

Astronauts are set to travel to Mars in the not-so-distant future. Some missions will result in people living in an extended period of microgravity. The human body isn't designed to handle this, so scientists are developing the best ways to mimic gravity on Earth on a spaceship. So how will they do it?

Astronauts are about to go back to the moon. While there are plenty of technical difficulties that NASA will have to address, one of the biggest ones is being able to keep astronauts breathing. To do that, they need oxygen. So, can we get it from the moon itself?

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