Learn more about the Eastern Massasauga, a rattlesnake from eastern North America — including the eastern Midwestern United ...

Learn about the impact of COVID on cardiovascular health and the aging of blood vessels, an aftereffect that is particularly ...

How do scientists know how old Earth is? Learn how experts have measured Earth's age, and why it is more difficult to ...

Squirrels with pox and rabbits with horns. Learn more about the viruses impacting these small mammals.

Learn why these common tricks don’t reduce your risk, and what simple hygiene habits make a difference when using public ...

Find out how to watch the second planet parade of the year, as six planets and the moon prepare to align in the sky starting ...

Learn more about what a star’s color means and while you’ll never see a twinkling green star in the night sky.

Are invisible mice real? Doritos dye can make tissue temporarily see-through in the right conditions.

Learn more about early marine animal witness accounts that likely fed mermaid and other sea monster legends.

Learn more about the handful of tooth fossils that complicate the history of humans in northeastern Ethiopia.

A quick voice check could one day become as routine as taking your temperature, helping doctors detect voice box cancer.

Learn about mice babies that were born from stem cells previously frozen on the International Space Station, which could one ...