A new proposal suggests borrowing the "Conference of the Parties" model from climate diplomacy to update space law before orbital congestion and lunar competition escalate.

Ask ten experts where space begins and you might get ten different answers. The atmosphere doesn’t end like a wall—it thins out gradually, so any “edge” is partly a human decision. That decision ...

Charleston, SC, astronomy professor answers questions from high school students about wormholes, black holes, colonizing Mars, outer space odors and more.

The first article of the Outer Space Treaty (1967) guarantees for all states the right of free access to outer space. This principle of states’ free access to outer space is also recognized as a rule ...