The assassination of the second leader of the Islamic Republic, who had no designated successor, throws its future into doubt ...

There have been plenty of attempts to resolve the "Hubble Tension" in cosmology. This feature describes how one of the most important variables in cosmology, the expansion of the universe, takes on ...

Daylight saving time begins next month. Learn why we spring forward, its history, and which states don't observe it ...

The Pentagon’s contract dispute with Anthropic is part of a wider clash about the use of artificial intelligence for national ...

A program hosted by UChicago's ISAC Museum explored how a biblical battleground, a doomsday clock and a looping film each ...

Jared Isaacman, the agency’s administrator, said the Artemis III mission would move to 2027 and would no longer attempt a lunar landing.

Safronova describes how quantum clocks work can act as new observatories for this invisible universe, searching for subtle drifts in their ticking that could signal dark matter, and testing gravity on ...

When private companies develop and sell solar geoengineering technologies, they draw a proprietary curtain over a planetary matter. If countries want to pursue the public good, international ...

Minimal enrichment capacity may be exactly what the Trump administration needs to get a better nuclear deal and avert a military conflict with Iran.