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.

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, ...

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

Comet ATLAS hit a maximum magnitude of -3.4 during its close encounter with the sun, just shy of the brightness of Venus in the night sky.

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 ...

G3 may be hard to see due to weather patterns and the California wildfires, said Tim Brothers of the Massachusetts Institute ...

The Galapagos is an outdoor destination—visitors are typically on boats, in the water, or hiking—so good weather is important ...

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