What is excessive daytime sleepiness? Tiny blood metabolites reveal how diet and biology are tied to daytime alertness and ...

Learn how the Parker Solar Probe's passage through the Sun's outer atmosphere has shed light on the process that creates ...

Learn how isotope analysis helped illuminate a hidden period of history for Utah’s Great Salt Lake.

The Black Moon means the moon will disappear for a night. Discover more about this rare phenomenon that occurs approximately ...

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

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.

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

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

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

Did the Lost City of Atlantis really exist? Unfortunately, the answer is no, but learn what researchers have discovered through the years and why theories still persist today.