Space debris – the collection of defunct human-made objects in Earth's orbit – is already affecting space agencies, companies ...

Satellites in orbit would begin to collide in a matter of days if they lost manoeuvrability during a solar storm or other ...

Every January, Earth reaches its closest point to the Sun, known as perihelion. Yet, it’s winter in the Northern Hemisphere.

Google’s ambitious Project Suncatcher proposes launching a constellation of 81 satellites into low Earth orbit (LEO) to ...

A new dataset from Lawrence Livermore National Laboratory maps one million cis-lunar orbits, highlighting orbital stability challenges, space domain awareness needs, and planning requirements for Moon ...

Interstellar comet 3I/ATLAS makes its closest approach to Earth on Dec. 19. Here's how you can track its progress both during ...

The Terra Hunting Experiment will track the wobbles of dozens of stars nightly for years in the most focused hunt yet for an ...

Everyone's favorite interstellar comet, 3I/ATLAS, flew past Earth overnight, coming within about 168 million miles (270 million kilometers) of our planet.

P erihelion – or the Earth's closest approach to our host star – will take place on January 3, 2026. At this point, our ...

I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches ...

Dec. 19 (UPI) -- Comet 3I/ATLAS passed its nearest point to Earth early Friday and approaching within 168 million miles.

A massive new sunspot complex, dubbed AR 4294-4296, has emerged on the sun and is facing directly at Earth. The dark patch is on par with the infamous sunspot that birthed the 1859 Carrington Event — ...