Private companies are racing to redefine what a space station looks like, and one of the boldest ideas on the table is a platform that can be launched in a single mission instead of assembled piece by ...

Russia has quietly taken a science fiction staple and turned it into a legal blueprint, securing a patent for a rotating orbital outpost that would create artificial gravity for crews. The design ...

Solar winds and coronal mass ejections may scatter narrow signals, making them harder for Earth-based telescopes to detect. The SETI Institute uses radio telescopes to search for signs of intelligent ...