Transportation

A new test flight puts the world’s largest plane one step closer to helping the US develop — and respond to — hypersonic weapons.

A Swedish startup has joined the race to build the world’s first electric airplane to help reduce the carbon impact of flying.

After withering criticism from the EPA, Biden officials, and 16 states, the USPS has announced it will order more electric delivery vehicles.

Rolls-Royce and easyJet have demonstrated for the first time that a modern plane engine can be safely powered by hydrogen fuel.

Latvian startup BeTRITON’s amphibious electric tricycle will take you from the road to the water to the campsite.

Interstellar distances are vast, and extremely advanced technology will be required if we (or aliens) want to visit other star systems.

Most electric car charging is done at night. A grid powered mostly by renewable energy might not be able to meet demand.

Children who walk or bike to school at a young age are more likely to continue the habit as they age, a new study shows.

Aerospace engineer Gökçin Çınar discusses sustainable aviation concepts, including hybrid-electric planes and hydrogen fuel alternatives.

An undergraduate and his supervisor ran the numbers and found paradox-free time travel to be mathematically consistent.