News

3 teens invented a salt-powered refrigerator that doesn't need electricity. They're building 200 of them for hospitals to use.
The Thermavault refrigeration unit can keep vaccines cool with a reusable salt solution. The teens who built it plan to test ...
Blue Origin rocket launch - as it happened: What Katy Perry sang in space and how all-female crew reacted to flight
An all-female crew, including singer Katy Perry, flew into space on a Blue Origin rocket. They touched down back on Earth ...