Is dark matter real? While most experts agree that dark matter exists, there's still a lot we don't know.

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

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

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

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 the arrival of ancient humans on the island of Sulawesi, a nearby neighbor to the island of Flores, where ...

Learn about the first ever molecule in the universe and its significance when it comes to the formation of the earliest stars ...

Learn why differences in the mitochondrial DNA of great white sharks have bewildered scientists for over 20 years.

What is the sturgeon full moon? Learn more about the array of celestial events happening in August 2025.