The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

Donaldjohanson, a main belt asteroid, could be a relic of a cosmic collision that took place 150 million years ago.

Researchers used community input to design Advanced Clean Truck (ACT) air-quality model experiments. Community asked for ACT policy simulations that convert 48% of medium- and heavy-duty vehicles into ...

New Southwest Research Institute-led modeling indicates the main belt asteroid (52246) Donaldjohanson may have formed about ...

The intriguing chemistry of a rock collected by the Perseverance rover could trace to microbial activity — or not.

A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy. Using ...

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Could a giant planet between Mars and Jupiter have doomed Earth? A new study suggests that small changes would have been ...

Researchers are organizing protests and making their voices heard as Trump officials slash funding and lay off federal scientists.

While the exact timing is uncertain, Pamela Gay, a senior scientist at the Planetary Science Institute, says it could happen soon. “We've been waiting for this sucker to flare up and get super ...

On February 28, 2025, a rare planetary parade will occur, with all seven solar system planets aligned on one side of the Sun. This unique event, visible once again only in 2040, offers skywatchers ...