Coming up in 2020: Guide to some of the best meteor showers this year promises
The year starts with a bang with the Quadrantids providing a treat for northern hemisphere viewers
Heat-tolerant bacteria that survived meteorite impact
The meteorite was made of a highly dense material and weighed 2.26 kilogrammes
World’s oldest asteroid strike in western Australia might have triggered a global thaw
Models show that if the Yarrabubba asteroid hit an ice sheet 5 km thick, more than 200 billion tonne water vapour would be ejected
Did a supernova trigger the late Devonian extinction?
Earth suffered an intense loss of species diversity that lasted for at least 300,000 years, possibly caused by long-lasting ozone depletion, …