The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...

Scientists discovered that methyl halides, a gas produced by microbes, could be a biosignature for life on distant planets.

Artist's concept of a potentially habitable super-Earth orbiting a star called HD 20794. Illustration credit: Gabriel Pérez ...

These unusual ideas included a deep pit under the planet and a top-secret military base that had ... These trees are dark green, but in such a high concentration, they look much darker from low Earth ...

A pair of 3,000-year-old objects amid a hoard of treasure were found to be crafted from extra-terrestrial iron. The two ...

A recent paper suggests that if astrobiologists want to make an educated guess about what life on Venus might look like, they ...

A mysterious 'black hole' spotted in the middle of nowhere on the Earth's surface by satellites ... dark triangle in the South Pacific does look strange, no doubt, with many thinking it had ...

Imagine a healthy planet with healthy humans living on it: the world has embarked on a path to clean energy, clean air and fresh water; we are feeding ourselves without compromising land or sea ...