NASA's Perseverance rover has been busy gathering bits of Mars — rock cores the size of chalk sticks, clusters of broken fragments no bigger than pencil erasers, and even grains of dust fine enough to ...

While the midair explosion of the SpaceX's Starship rocket made for an unsuccessful flight test it also made for an unforgettable optical experience in the Caribbean. The launch marked the seventh ...

Eco-friendly alternatives to fossil fuels are venturing beyond Earth—and into space.