Fleets of satellites interfere with snapshots taken by Earth-bound observatories. But a new study suggests these orbiters ...

Earth’s orbit is getting crowded with broken satellites and leftover rocket parts. Researchers say the solution is to build ...

Depending on how you look at it, the universe might not have an "end," after all. Whether the universe will "end" at all is ...

Right above you is the sky – or as scientists would call it, the atmosphere. It extends about 20 miles (32 kilometers) above the Earth. Floating around the atmosphere is a mixture of molecules – tiny ...

NASA’s Space Launch System appears to have a finite shelf life. The Trump administration wants to cancel it after just three launches, while the preliminary text of a bill making its way through ...

I think the work of the force design will be done in 2025, and then hopefully publish it again to stakeholders in early 2026,” Gen. Chance Saltzman said.

Every time a rocket is launched, tons of valuable materials are lost, and huge amounts of greenhouse gases and ...