For decades, astronomers have wanted to know exactly what the explosion of a doomed star looks like. The Webb Space Telescope has made that knowledge possible.
How high up are meteors when they begin to glow? Meteors begin to glow almost as soon as they hit Earth's atmosphere, but vaporize at varying altitudes.
Researchers in Europe have successfully tested prototypes of proposed Tumbleweed rovers. The lightweight spherical rovers would use wind to move around on Mars.