How and when did dinosaurs first emerge and spread across the planet more than 200 million years ago? That question has for ...

But in the background is a rather remarkable one-week stretch that occurred in the last week of December. As you have heard a ...

A NASA satellite has spotted frozen "kidney beans" on Mars' sand dunes trapped in place until springtime. Photographing them ...

The Chicago area is less than a month into winter, but many residents may be curious on when spring starts later this year.

From the total lunar eclipse in March to three epic supermoons this fall, these are the best celestial events of 2025 that are worth traveling for (plus one to look forward to in 2026!).

G3 (ATLAS) should be visible from the southern hemisphere, and possibly also the northern hemisphere, over the next few days ...

Cretaceous-era global heat likely caused a genetic split between Northern and Southern Hemisphere lampreys, offering new ...

WHO reports a surge in acute respiratory infections in the Northern Hemisphere, driven by seasonal epidemics of influenza, ...

The discovery of Ahvaytum bahndooiveche, a 230-million-year-old dinosaur in Wyoming, reveals dinosaurs existed in the ...

Paleontologists say the fossils could prove dinosaurs lived in the northern hemisphere millions of years earlier than ...

A once-in-a-lifetime comet is approaching the sun — and it will be visible for the first time in 160,000 years. The comet ...

Rising cases of common respiratory illnesses in China and elsewhere around the Northern Hemisphere are within the range ...