Lithium-ion battery fires can burn for hours and require much more water to extinguish than standard blazes. Credit: US CPSC / YouTube Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. The United States Consumer Product Safety Commission (CPSC) is well known for getting their point across on social media. A seven-minute montage of mannequins succumbing to 4th of July firework injuries may be an unconventional way to warn about the dangers o...

The ALIA CX300 can carry around 200-square-feet of cargo on medium distance flights. Credit: BETA / Brian Jenkins Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. Air New Zealand has cleared its runways to test both all-electric and hydrogen-powered planes. Although in its early stages, the four-month “intensive proving program” may help one day usher in a new era of sustainable flight. Aircraft remain some of the biggest sources of ve...