Expert shares key facts about asteroid that could hit Earth in 2032
The head of planetary defense at the European Space Agency discusses 2024 YR4, an asteroid with a small chance of striking ...
Innovators Plan for Nonstop 9-day Trip Around Earth in Hydrogen Plane
The goal for Climate Impulse is to take off unassisted, fly some 40,000 kilometers (about 25,000 miles) around Earth along ...