Russia and China can black out military satellites in seconds. A Latvian startup says nuclear-waste generators using 5x less fuel could keep satellites—and lunar bases—running.

From 'Westworld' to 'Firefly,' there are many sci-fi Western TV shows that blend both genres perfectly.

The researchers who scan the skies for radio signals from extraterrestrials are now rethinking their approach.

SETI has spent decades listening for a sharp, well-defined radio signal that could indicate it was sent by distant intelligent life. Now researchers believe that space weather could distort and blur s ...

Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.

"If a signal gets broadened by its own star's environment, it can slip below our detection thresholds, even if it's there." ...

The showdown between the Pentagon and Anthropic is a window into how unprepared we are for the questions we are facing.

The Southern California company’s hypercar represents the future as well as utter madness in automotive form. Gah.

Popular culture imagines aliens as creatures made of flesh and bone — but some researchers argue that advanced civilizations would likely evolve beyond biology. Given millions of years of ...

Scientists suspect that a rapidly spinning, highly magnetic neutron star, or "pulsar," dwells at the heart of the Milky Way. The discovery could change our understanding of how many of these extreme ...

Amazon, Alphabet, Microsoft, Meta, and Oracle will spend over $700 billion on data centers this year. This company can expect a huge increase in revenue regardless of how big tech allocates its budget ...

U.S. stocks have given up all of their gains for the year, a key index of the so-called Magnificent Seven tech giants has slid into correction territory, and volatility gauges have spiked amid a ...