Paul Arnold
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Kamo'oalewa asteroid's lunar origin challenged ahead of Tianwen-2 arrival
June 2, 2026 report Kamo'oalewa asteroid's lunar origin challenged ahead of Tianwen-2 arrival Paul Arnold Author Lisa Lock Scientific Editor Robert Egan Associate Editor China's Tianwen-2 sample-return mission is well on its way to its target, an asteroid called Kamo'oalewa. The spacecraft left Earth in May 2025 and should return in late 2027 with samples of a space rock that scientists had assumed originated from the moon. However, a new study published in Nature Communications suggests...
Supermassive black holes could be the universe's biggest planet nurseries
May 31, 2026 report Supermassive black holes could be the universe's biggest planet nurseries Paul Arnold Author Lisa Lock Scientific Editor Robert Egan Associate Editor Supermassive black holes are the largest known black holes in the universe, sitting at the center of most large galaxies. They are sometimes described as cosmic monsters because they feed on surrounding gas and dust when they are active, as well as destroy anything that gets too close. But their reputation could be due for a...
Britain's oldest cave art may have been rediscovered in Bacon Hole cave
June 2, 2026 report Britain's oldest cave art may have been rediscovered in Bacon Hole cave Paul Arnold Author Gaby Clark Scientific Editor Robert Egan Associate Editor The oldest cave art in Britain may have been discovered, or more likely rediscovered, in a cave on the Gower Peninsula in South Wales, possibly dating back around 17,000 years. The red stripe markings on the walls of a cave called Bacon Hole were first spotted in 1912. They were hailed by their finders, Professor William...
Wonderwerk Cave bones reveal possible fire use by human ancestors 1.79 million years ago
June 7, 2026 report Wonderwerk Cave bones reveal possible fire use by human ancestors 1.79 million years ago Paul Arnold Author Gaby Clark Scientific Editor Robert Egan Associate Editor The discovery of fire was a major milestone in human evolution, giving our ancestors a way to stay warm, ward off predators, and eventually start cooking food. But exactly when this first happened is still intensely debated, as unambiguous evidence is difficult to find. However, new research from a cave in...
One of our planets may be missing, and it could explain why the solar system looks the way it does
June 1, 2026 report One of our planets may be missing, and it could explain why the solar system looks the way it does Paul Arnold Author Sadie Harley Scientific Editor Robert Egan Associate Editor Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published in the journal Icarus, this extra world might have triggered a violent planetary shuffling billions of years ago that could have disrupted some of Jupiter's and Uranus's...
How a Richard Feynman formula could explain your dining habits in a new city
June 2, 2026 report How a Richard Feynman formula could explain your dining habits in a new city Paul Arnold Author Gaby Clark Scientific Editor Robert Egan Associate Editor One of the dilemmas facing anyone in a new and unfamiliar city is where to dine out. You might consult guides, speak to locals, check reviews, and ultimately, try your luck. But if you're there for a while, at some point you're going to be asking yourself whether to visit new eateries or stick to the ones you've already...
Critically endangered Chinese pangolin found in Nepal's sacred forest
June 8, 2026 report Critically endangered Chinese pangolin found in Nepal's sacred forest Paul Arnold Author Lisa Lock Scientific Editor Robert Egan Associate Editor The rare Chinese pangolin (Manis pentadactyla) has been spotted for the first time in Sunsari District in eastern Nepal. This brings the total number of districts in the country where the critically endangered species has been documented to 28. Chinese pangolins are small, solitary, nocturnal mammals native to South and...
Solar sails edge closer to reality, but interstellar travel is another story
June 3, 2026 report Solar sails edge closer to reality, but interstellar travel is another story Paul Arnold Author Lisa Lock Scientific Editor Robert Egan Associate Editor From planetary rovers and asteroid sample return missions to the recent Artemis II flight above the far side of the moon, we are seemingly good at doing space. But our achievements still do not match many of our space dreams, science fiction or otherwise. One of the long-mentioned ways of achieving some of our ambitions...
Remote work is taking its toll on the mental health of American workers, researchers find
June 5, 2026 report Remote work is taking its toll on the mental health of American workers, researchers find Paul Arnold Author Lisa Lock Scientific Editor Robert Egan Associate Editor Working from home comes with some major pluses. It's more flexible, there's no more pesky commute, work-life balance improves, and you can even stay in your pajamas all day if you want. But according to a major study of more than 580,000 American workers published in Science, remote work is taking its toll on...
Understanding Earth's hidden east-west symmetry could improve climate models
June 4, 2026 report Understanding Earth's hidden east-west symmetry could improve climate models Paul Arnold Author Gaby Clark Scientific Editor Robert Egan Associate Editor Earth is divided into two halves: the Northern and Southern Hemispheres. Both reflect equal amounts of sunlight (albedo) even though they have different landmasses and weather patterns, especially cloud distribution. Why this is so is an ongoing mystery waiting to be solved.