A shark with teeth as big as your hand has to be huge. But when teeth are all you have to go on, you’ll need to think outside the box to work out what the rest of the long-extinct monster looked like. It turns out the pelagic terror referred to as Megalodon might have
Month: September 2020
While mighty oaks do fall, there are a rare few that can stand for nearly a millennium, even under harsh conditions. Radiocarbon dating has now revealed the oldest temperate hardwood tree in the world sits atop a steep rocky slope in a remote mountain belt of the Mediterranean. Here, on this rocky precipice in Italy,
While filming herself getting ready for work recently, TikTok user @gracie.ham reached deep into the ancient foundations of mathematics and found an absolute gem of a question: “How could someone come up with a concept like algebra?” She also asked what the ancient Greek philosopher Pythagoras might have used mathematics for, and other questions
The physical footprints left behind by humankind don’t wash away with the waves. Human construction has modified the oceans as much as it has urbanised the land, a new analysis reveals. Mapping the global extent of human development in Earth’s oceans, an international team calculated the footprint occupied by human built structures as of
It’s like something out of Stranger Things, but with fewer Demogorgons and less of the sinister darkness: physicists have flipped reality on its head, creating their own ‘upside down’ by getting small boats to float underneath a levitating liquid. Seeing it in action, you would think you were watching some kind of sci-fi movie
When an earthquake struck the Italian mountain town of L’Aquila in April 2009, few people would have been thinking that carbon dioxide had anything to do with it. But geologists were on the case straight away. Immediately after the L’Aquila earthquake, a team from the Italian National Institute of Geophysics and Volcanology started measuring
Several years ago, a remotely operated vehicle was descending down into a freshwater cave system, hidden deep under the Czech Republic, when it came to an abrupt end. Not the end of the cave, that is, but the end of its cable. Now, new estimates taken from up at the surface suggest we’d need
A bubble of methane gas, swelling beneath Siberia’s melting permafrost for who knows how long, has burst open to form an impressive 50-metre-deep (164-foot-deep) crater. The giant hole was first spotted by a TV crew flying overhead, and, according to The Siberian Times, when scientists went to investigate, they found chunks of ice and rock thrown hundreds
In the hot sunshine, asphalt road and roof coverings can put out more secondary organic aerosol (SOA) pollutants than the cars on the road, according to a new study that looked at the South Coast Air Basin in California. Cars still produce more overall pollution, but SOAs – such as the ones emitted by
Earth, with its reassuringly familiar continents, arranged in the dependable configuration you know and love, didn’t always look the way it does now. Its land masses, once locked together in supercontinents, have cracked and broken and slid away from each other, and repeatedly come together again over the course of our planet’s 4.5-billion-year history.
The volume of lakes formed as glaciers worldwide melt due to climate change had jumped by 50 percent in 30 years, according to new study based on satellite data. “We have known that not all meltwater is making it into the oceans immediately,” lead author Dan Shugar, a geomorphologist and associate professor at the University
There is no doubt that Australia’s Black Summer last year was absolutely devastating. Fires across the country burnt through 186,000 square kilometres (72,000 square miles) of land, killing 34 people, while billions of animals were affected. But there’s something particularly chilling about seeing the end results of the blaze. Australian aerial analysis company Geospatial
The Greenland and Antarctic ice sheets, which hold enough frozen water to lift oceans 65 metres, are tracking the UN’s worst-case scenarios for sea level rise, researchers said Monday, highlighting flaws in current climate change models. Mass loss from 2007 to 2017 due to melt-water and crumbling ice aligned almost perfectly with the Intergovernmental
In October 1961, the Soviet Union dropped the most powerful nuclear bomb in history over a remote island north of the Arctic Circle. Though the bomb detonated nearly 2.5 miles (4 kilometers) above ground, the resulting shockwave stripped the island as bare and flat as a skating rink. Onlookers saw the flash more than 600