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

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 ...

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.

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 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.

A traditional conch shell exercise is showing surprising benefits for people with obstructive sleep apnea.

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

How the Inca Built Machu Picchu The city’s longevity attests to the craftsmanship and practical prowess of its builders.

Learn more about a rising health concern known as social apnea, which is caused by staying out too late on weekends and not ...