U.S. Chief of Space Operations Gen. Chance Saltzman said the exercise will send a "clear message" that Space Force is ...

China’s Shijian-21 and Shijian-25 satellites, known as SJ-21 and SJ-25 for short, likely docked together in geosynchronous ...

The Banks Orbital is a ring-shaped Space Habitat over a million miles across with hundreds of times more living area than the entire Earth.

While US officials are worried about Russian anti-satellite weapons, or ASATs, the behavior of Russia's Nivelir satellites is puzzling. It's clear that Russia is deliberately launching these ...

Canada doesn't have a long history of rocket launches, but that may be about to change.

The Trump administration's plan to gut the Office of Space Commerce and cancel the government's first civilian-run space ...

Thanks to atomic clocks (and all the worldly forces that influence them), scientists know that Earth's rotation has begun to ...

SpaceX is targeting a whopping 170 orbital liftoffs in 2025, which would shatter the record the company set just last year.

Earth is set to experience unusually short days in July and August 2025. The Moon's orbital position is subtly accelerating ...

Launch pad in space? Space Force is keen to add to its arsenal a spacecraft that would essentially serve as cosmic equivalent of an aircraft carrier.

A German start-up’s orbital rocket spun out and crashed seconds after take-off Sunday, in a rare European test flight that the makers said “met its set goals.” ...

President Trump’s blueprints to build a space-based missile defense shield could help him push for cuts in atomic weapons arsenals with Russia and other nuclear powers.