Season 2 follows people losing their ability to speak — and the AI and brain implants helping them find their voices again.

The steps were poorly preserved, but still hint at an ambling pace of 1.6 meters per second, roughly equivalent to a quick walking speed for a human.

In 2025, the Trump administration ended a long-running program to collect air pollution data at U.S. embassies. A new study suggests that led to a 24-33% increase in local pollution levels.

The anniversaries come and go, but the physical and mental health of workers and survivors is still being affected by September 11, 2001.

Being pregnant puts an individual at higher risk for severe illness and death from COVID-19, but vaccination has lagged among pregnant people.

A court ruling that blocks Trump administration vaccine policy is a win for science. But much work remains to rebuild trust in vaccines.

“Preparedness cannot mean optimizing every investment for yesterday's epidemic,” write Krutika Kuppalli and Placide Mbala.

Proposed federal rules would rely on political appointees to decide how a lot of U.S. science gets done. History shows the consequences of such actions.

Heat and humidity now severely limit light physical activity for millions of people around the world, with older adults facing the greatest burden.

Iron and hydrogen peroxide trigger cell death via ferroptosis, which cascades killer molecules through the population, causing mass die-offs of algae.

Donated uteruses transplanted into women without a womb can allow for successful pregnancy and birth.

The strangler fig is a keystone species in the tropics, providing food and shelter, and a place to poop for 17 different mammal species.

U.S. work combatting HIV/AIDS has saved millions of lives globally. Under the Trump administration, funding has been slow in coming and unpredictable, wreaking havoc on people trying to do the work.

A new documentary available on Disney+ and Hulu appeals to our sense of wonder to highlight why bees need saving.

A court ruling that blocks Trump administration vaccine policy is a win for science. But much work remains to rebuild trust in vaccines.

Breaking: A federal judge on Monday stalled major parts of health secretary Robert F. Kennedy Jr.’s campaign to remake vaccine policy in the U.S.

People quickly normalize extreme weather. Simple visuals highlighting abrupt change could help climate change break through our mental blind spots.

Submerged bees breathe and use strategies that don’t require oxygen, lab tests show. In nature, that trick could help the bees survive floods.

Space exploration can bring people together and reflect deep societal divisions.

Takanori Takebe’s strange investigation into whether humans can use the gut for breathing has surprisingly sentimental origins: helping his dad.

Recent U.S. decisions about vaccines signal bigger changes to come that could threaten the foundation of the national childhood immunization schedule.

America's withdrawal from the World Health Organization is affecting the ability of U.S. scientists to track flu and other pathogens. That could be a blow to the development of the 2025 flu vaccine.