Fossils and genetics are starting to point to life emerging surprisingly soon after Earth formed, when the planet was ...
What was Earth like billions of years ago? How did life emerge? And how did humanity come to dominate the planet? This video ...
Earth's oceans may have been green for billions of years until the first photosynthetic organisms flooded our atmosphere with ...
Some cyanobacteria have pigments that specialise in harvesting green light to power photosynthesis, which may be because they ...
Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short ...
All countries must accelerate efforts to avert the biodiversity crisis, and preserve Earth’s precious natural places for ...
When Earth first formed, it was too hot to retain ice. This means all the water on our planet must have originated from ...
A popular model of evolution concludes that it was incredibly unlikely for humanity to evolve on Earth, and that extraterrestrial intelligence is vanishingly rare.
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...