Neutron stars harbor some of the most extreme environments in the universe: their densities soar to several times those of ...

Two European Space Agency Mars-orbiting missions, the Mars Express and ExoMars Trace Gas Orbiter spacecraft, watched as a powerful solar "superstorm" that ravaged Earth also struck the Red Planet. The ...

The rocket’s death came via a seemingly pedestrian notice posted on a government procurement website: “NASA/MSFC intends to issue a sole source contract to acquire next-generation upper stages for use ...

A SpaceX Falcon 9 rocket created a massive, glowing formation in the night sky that witnesses described as a giant “jellyfish,” visible across multiple southeastern U.S. states. The spectacle, caused ...

AI data centers face grid delays and turbine shortages, pushing developers toward gas reciprocating engines for fast, scalable gigawatt power.

Astronomers have spotted what may be one of the universe’s earliest barred spiral galaxies — a striking cosmic structure forming just 2 billion years after the Big Bang. The galaxy, COSMOS-74706, ...

Planned ‘megaconstellations’ of satellites could cause unforeseen harm to the ozone layer and climate systems. Global regulation is needed before it’s too late.

The environmental impact of SpaceX's planned gargantuan mega-constellation is still being grappled with, but the FCC isn’t required to study it ...

MOUNTAIN VIEW, Calif. — Manufacturers of small satellites that lack opportunities to build very large constellations say they are seeing growing interest from customers seeking smaller systems ...

The cancellation of the Constellation-class frigate allowed the Navy to quickly seek a funding boost for the program set to replace it, USNI News has learned. The Fiscal Year 2026 defense ...

Illustration of SpaceX's Starlink network of satellites. Elon Musk is consolidating his space and AI empires into a single entity valued at over $1 trillion, merging SpaceX with his cash-burning xAI ...

SpaceX is requesting permission to launch as many as 1 million satellites into the Earth's orbit in order to pull off Elon Musk's latest grand vision of putting data centers in space to do complex ...