Wealthy adventure seekers can now book a vacation on the moon through a California-based start-up, which plans to open a hotel on Earth's celestial companion by 2032. The aspiring space tourists have ...

On Oct. 20, NASA reported that Swift's orbit had decayed to 171 miles (275 kilometers) above Earth and that the roughly 3,300-pound (1,500-kilogram) observatory was no longer able to compensate for ...

Joshua Kutryk will venture outside the International Space Station on Oct. 29, on the first spacewalk by a Canadian astronaut in more than seven years. Here's how to watch it live.