Chinese air traffic has returned to roughly 2019 levels; it is somewhat higher domestically and somewhat lower internationally. Deliveries are coming back, too. In 2024, 182 airliners were delivered ...

BEIJING -- An international team of scientists led by Peking University has developed a new method of hydrogen production that eliminates direct carbon dioxide (CO2) emissions. Published in Science on ...

Through rigorous testing, this new model displayed a staggering theoretical energy density of 2825 watt-hours per kilogram ...