Add Yahoo as a preferred source to see more of our stories on Google. The fossilized tail bones of an Ichthyosaurus, around 190 million years old and weighing 800 kilograms. - Markus Scholz/picture ...

Deep in space, astronomers have detected unusual radio signals that immediately sparked excitement and controversy in the scientific community. At first glance, these signals might simply be explained ...

Could Earth have hosted an advanced civilization before humans? This intriguing question is at the heart of the Silurian Hypothesis, a theory that challenges our understanding of Earth’s history. By ...

One of the most challenging aspects of astrobiology and the Search for Extraterrestrial Intelligence (SETI) is anticipating what life and extraterrestrial civilizations will look like. Invariably, we ...

For decades, humans have scanned for signals of alien technology emanating through the galaxy. The search highlights the contradiction between the abundance of planets and stars that stretch across ...

When astrobiologist Adam Frank walked into the office of NASA scientist Gavin Schmidt, he had what he believed was the weirdest question: do aliens experience climate change? It took just moments for ...