Just visually looking at the object on the ground, you could tell that it was extraordinary and anomalous. It was not human.' ...

Ambitious plans for lunar bases and Martian habitats present unique challenges, especially in coordinating time across ...

While SpaceX lost the upper stage of its new Starship in a flight test, the futuristic spacecraft presages a spaceflight revolution, says a leading U.S. space scholar.

While SpaceX is not the sole new launch company, it has set the pace for reducing the cost and increasing the reliability of space launches.

These days, private businesses are making big moves in space. Two commercial space probes have just set off on a mission to ...