Earth Season 2 has surfaced as the next chapter of the sci-fi series begins taking shape. One of the show’s lead actors ...

If I were on Mars, how often would I see Earth transit the Sun? Steven RiserConyers, Georgia From Mars, Earth transits the Sun four times in a 284-year cycle. The transits occur in either May or ...

Researchers found the first statistically significant evidence that global warming is accelerating. It's been topic of ...

Our planet plunged into one of the most dramatic climate states in its long history, approximately 720–635 million years ago.

Finding Earth-like planets orbiting sun-like stars and identifying signs of life such as oxygen or water is a major goal in ...

It is possible that extremophile microbes lcould exist on icy moons and planets with conditions similar to subglacial waters or the ocean floor.

Half a billion years ago, the first true eye emerged in Earth’s oceans. Fossils now reveal what that ancient crystal vision could actually see.

Human beings have been at the center of ecological change on Earth for thousands of years. But as history shows, no species ...