"Primordial black holes do not live in the solar system. Rather, they’re streaming through the universe, doing their own thing. And the probability is, they’re going through the inner solar system at ...

Scientists creating a gravity map of Mars have discovered the presence of mysterious large-scale structures hidden beneath a ...

Imagine Earth covered in thick sheets of ice. And sea levels so low you could walk to a different continent. This is what our planet would look like during an ice age. There have been five of them in ...

A new study offers the most detailed glimpse yet into how Earth's surface temperature has changed over the past 485 million years. The data show that Earth has been and can be warmer than today -- but ...

An effort to understand Earth’s past climates uncovered a history of wild temperature shifts and offered a warning on the ...

At times during the past half-billion years, carbon dioxide warmed our planet more than previously thought, according to a ...

Researchers show the average surface temperature on our planet has shifted between 51.8 to 96.8 degrees Fahrenheit ...

A new study co-led by the Smithsonian and the University of Arizona offers the most detailed glimpse yet of how Earth's ...

A timeline of 485 million years of Earth’s surface temperatures shows ancient greenhouse conditions were hotter than scientists thought.

A ring could explain a mysterious arrangement of impact craters near the equator and might even have caused an ice age, ...