That’s not even close to the size of the “planet-killer” asteroid that slammed into Earth 66 million years ago and led to the extinction of dinosaurs. That one was estimated to be about 6.2 ...

One of the most studied space rocks of all time has given scientists another big surprise, with the "mudball meteorite" Aguas ...

The study also provides a new approach to solving one of the biggest enduring scientific mysteries: when did plate tectonics ...

Our solar system's journey around the center of the Milky Way takes it through varying galactic environments, and one may ...

If there were any contender for a real-life equivalent to the Oliphaunts of J.R.R. Tolkien’s Middle Earth, it would be ...

The explosion released elements heavier than iron—like gold and platinum—through a process known as rapid neutron capture ...

Until now, it’s been very hard for scientists to establish a detailed timeline of the early evolution of bacteria.

An international team looks back 12 million years for clues about the formation of these vast ... according to Boston College Assistant Professor of Earth and Environmental Sciences Xingchen “Tony” ...

The smaller simulated star survived for roughly 12 million years before dying as a supernova, ejecting 17,000 Earth masses of oxygen into the surrounding interstellar medium. The larger star only ...

which can't sink into the Earth's dense mantle. For at least 80 million years the oceanic Indian Plate continued its inexorable collision with southern Asia, including Tibet. The heavy ocean floor ...

A study suggests that this organism likely lived on Earth only 400 million years after its formation. Further analysis also shows that this life form likely sported an early immune system ...

A pattern of encroaching and retreating ice sheets during and between ice ages has been shown to match certain orbital parameters of Earth around ... of the past million years or so would occur ...