After months in space, astronaut Sunita Williams faces her toughest test—Earth's gravity. From weak muscles to balance issues, recovery will take years of rehab and patience.

Scientists suggest binary pulsars could act as interstellar thrusters, allowing advanced civilizations to move stars and ...

There are extraterrestrials among us. They landed four billion years ago when Earth was just forming. And they weren't ...

A revolutionary propulsion concept using light sails could one day allow small spacecraft to travel between stars at ...

Vandenberg Space Force Base, in coordination with NASA, is set to provide a comprehensive mission overview for the eagerly ...

When astronomers detected the first known interstellar object, 'Oumuamua, in 2017, it sparked a host of new studies trying to ...

Could our solar system have been temporarily exposed to an enhanced flux of cosmic-rays at some point in the ancient past?

A Chilean space telescope has captured striking images of YR4 2024, the “city-killer” asteroid that’s potentially on a ...

Radioactive spike found in Pacific seabed samples. It could be from space radiation or changes in ocean currents 10 million ...

Earth's Inner Core Is Undergoing a Transformation Feb. 10, 2025 — Earth's inner core is undergoing structural transformation. Located 3,000 miles below the Earth's surface, the inner core is ...

New research suggests that our Solar System may already be swimming in interstellar objects that originate from the Alpha ...