When the International Space Station plunges to its fiery doom in 2030, its loss to science will be incalculable, even if it ...

Driving a spacecraft around a planet isn’t anything like driving on a planet. A physicist explains orbital navigation.

What does it truly mean to live in space? To wake up in microgravity, repair failing systems, and make sure there’s enough ...

Theoretical physicist Alex Lupsasca is pushing for a space telescope to glimpse the thin ring of light that is thought to surround every black hole.

The United States and China are locked in a contest to be the first country to send humans to the lunar surface in half a century. But there's a developing twist: an emerging competition between ...

The ISS has been a symbol of research and cooperation for decades, but NASA has plans to deorbit the station in 2030, likely ...

Flashes of light seen in the sky in old astronomical photographs may reveal the presence of reflective, satellite-like ...

The Nobel Prize in Physics for 2025 honors scaled-up quantum physics—while sidestepping controversies swirling around quantum ...

Shenzhou-21 crew reaches Tiangong in record time and will conduct 27 scientific experiments during six-month mission.

The proof, known to be so hard that a mathematician once offered 10 martinis to whoever could figure it out, uses number ...

About 50 light-years from Earth, a gas giant about half the mass of Jupiter orbits a sunlike star. The discovery of Pegasi 51 b ushered in a new era of exoplanet research.

California-based startup Reflect Orbital aims to build a swarm of 4,000 giant mirrors in low Earth orbit to "sell sunlight" to customers at night. Experts warn that the mirrors could mess with ...