Hibernating animals reverse aging, avoid diabetes, and preserve muscle. Could we one day do the same?

Learn how the hominins’ consumption of grasses led to changes in their teeth around 700,000 years later.

What are some of the most oddly-shaped galaxies? Learn more about some of the Universe's unusual formations.

What is space-time? Depending on how fast you're moving or how close you are do Earth's gravity can change the way time feels ...

Knowing the current health status of your heart is crucial — and dating your heart’s age might just be the right tool for it.