A meteor strike wiped out an ancient city 3,600 years ago

As the inhabitants of an ancient Middle Eastern city now called Tall el-Hammam went about their daily business one day about 3,600 years ago, they had no idea an unseen icy space rock was speeding toward them at about 38,000 mph (61,000 kph). Christopher R. Moore, University of South Carolina

Intergovernmental Panel on Climate Change (IPCC) report: Here’s what you need to know

Earth has warmed 1.09℃ since pre-industrial times and many changes such as the sea-level rise and glacier melt are now virtually irreversible, according to the most sobering report yet by the Intergovernmental Panel on Climate Change (IPCC). The report also found escape from human-caused climate change is no longer possible. Climate change is now affecting …

Stardust is raining down on Earth

It is all around us. Every day in our lives we are in contact with it. In fact, we are made from it: ancient stardust. All the atoms around us have witnessed the most violent explosions in the universe. Their journeys through space are the longest, roughest and loneliest voyages imaginable. Dominik Koll, Australian National …

Here’s how scientists make plant-based foods taste and look more like meat

In 2019, Burger King Sweden released a plant-based burger, the Rebel Whopper, and the reaction was underwhelming. So, the company challenged its customers to taste the difference. Burger King Sweden created menu item where customers would have a 50-50 chance of getting a meat burger or a plant-based one. To find out, they had to …

How many Tyrannosaurus rex walked the Earth?

Tyrannosaurus rex (rex meaning “king” in Latin) lived throughout what is now western North America 68 to 66 million years ago, during the Upper Cretaceous period. Back then, there was a big island (an island continent) called “Laramidia” there. But, how many Tyrannosaurus rex walked the Earth? At the same time, and in total? Ashley …

Astronomers image the magnetic field of a black hole for the first time – here’s what it reveals

There was a lot of excitement when the Event Horizon Telescope collaboration showed the world the first ever image of a black hole back in April 2019. Weighing in at 6.5 million times the mass of our Sun, this supermassive black hole is located in the galaxy Messier 87, or M87, some 55 million light …

Regrowing a tropical forest – is it better to plant trees or leave it to nature?

David Burslem, University of Aberdeen; Christopher Philipson, Swiss Federal Institute of Technology Zurich, and Mark Cutler, University of Dundee The destruction of tropical forests is a major contributor to biodiversity loss and the climate crisis. In response, conservationists and scientists like us are debating how to best catalyze the recovery of these forests. How do …

Early magma oceans of Earth detected in 3.7 billion-year-old Greenland rocks

Earth hasn’t always been a blue and green oasis of life in an otherwise inhospitable solar system. During our planet’s first 50 million years, around 4.5 billion years ago, its surface was a hellscape of magma oceans, bubbling and belching with heat from Earth’s interior. Helen M Williams, University of Cambridge