A SpaceX mission was canceled on Wednesday to bring home a pair of astronauts who have been on the ISS since June.

Launched Tuesday night from California by SpaceX, the Spherex observatory will survey the sky every six months from an orbit over Earth's poles.

reusable rockets to compete against Elon Musk’s SpaceX and to reach Mars. Consecutive losses of the Starship rocket suggest that the company’s engineers are not as infallible as its fans may ...