Millions of other animals may have perished too, suggesting the die-off event might be one of the worst in modern times.

Now atop Jezero Crater, the robotic explorer found quartz indicative of habitable environments and possibly the oldest rocks yet seen in the solar system.

Most present-day humans carry a small amount of Neandertal DNA that can be traced back to a single period of interbreeding, two genetic analyses find.

As of early December, there have been nearly 60,000 confirmed and suspected cases in 20 countries and 60 deaths in 2024. Children have been particularly hard hit.

Earthquake data suggest that all or small patches of the inner core's surface may be swelling and contracting.

Studies suggest that semaglutide reduces heart attack and stroke and may curb addiction and more. Scientists reflect on the future of GLP-1 drugs beyond weight loss.

Twenty years after the deadliest wave in recorded history, most oceans have warning systems and communities have learned how best to escape the danger.

Female moths may pick up on the ultrasonic wailing of distressed plants and opt to lay their eggs on different, healthier plants.

Egypt was added to the list of malaria-free places in 2024, but climate change, conflict and other threats could increase cases especially in Africa.

Generative AI and the hype around it has rung in excitement and alarm bells this year. Here’s how to consider climate, energy and AI's intersection.

More than half of rural hospitals and more than one-third of urban hospitals did not offer labor and delivery services in 2022.

Engravings and other evidence suggest ancient humans attended religious ceremonies in the cave as early as 37,000 years ago.