Despite their public image as torpid, lumbering creatures, many dinosaurs were evidently warm-blooded, highly active animals, capable of prolonged and strenuous aerobic exercise. In new research, my colleagues and I determined how much energy minibus-sized dinosaurs called Maiasaura used while growing to adulthood. Our results, published in the journal Paleobiology, show Maiasaura was capable of ...
A substance called antimatter is at the heart of one of the greatest mysteries of the universe. We know that every particle has an antimatter companion that is virtually identical to itself but with the opposite charge. When a particle and its antiparticle meet, they annihilate each other — disappearing in a burst of light. ...
A galaxy can come in many shapes and sizes, from giant, slowly rotating ovals and fast-whirling spiral disks to faint ball-shaped blobs and dwarf irregulars. Most large, bright galaxies — including our own Milky Way — are orbited by a gang of much smaller dwarf galaxies. Most of this we know from optical images, whether ...
In May 2020, some unusual rocks containing distinctive greenish crystals were found in the Erg Chech sand sea, a dune-filled region of the Sahara Desert in southern Algeria. On close inspection, the rocks turned out to be from outer space: lumps of rubble billions of years old, left over from the dawn of the Solar ...
Artificial intelligence pioneer Geoffrey Hinton made headlines earlier this year when he raised concerns about the capabilities of AI systems. Speaking to CNN journalist Jake Tapper, Hinton said: If it gets to be much smarter than us, it will be very good at manipulation because it would have learned that from us. And there are ...
Early universe observations by the James Webb Space Telescope (JWST) cannot be explained by current cosmological models. These models estimate the universe to be 13.8 billion years in age, based on the Big Bang expanding universe concept. My research proposes a model that determines the universe’s age to be 26.7 billion years, which accounts for ...
In recent research published by myself and my colleague Tony Yeates in the journal Tectonophysics, we investigate what we believe — based on many years of experience in asteroid impact research — is the world’s largest known impact structure, buried deep in the Earth in southern New South Wales. The Deniliquin structure, yet to be ...
What do you feel when you see an aurora, and what does this have to do with solar activity? Otherwise known as the northern or southern lights, an aurora is light emitted by upper atmospheric particles as they interact with energized ones from the magnetosphere. It’s an awe-inspiring and otherworldly event that those living at ...
The Australian National Maritime Museum (ANMM) and non-profit Silentworld Foundation have continued ongoing archaeological investigation of the wreck of the South Australian, with recent research from a combined team of experts published in the journal Historical Archaeology. The South Australian is South Australia’s oldest known European shipwreck. The English barque, wrecked in 1837 in Encounter Bay near modern-day Victor Harbor, ...
When you hear news reports about volcanoes spewing lava and ash, you may worry about the people nearby. In fact, almost 1 in 10 people around the world live within 100 kilometers of an active volcano. For those living close to volcanoes, farming on their fertile soils, or visiting their spectacular landscapes, it is crucial ...
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