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One of the dense and hot spots in the depths of the Earth has been revealed with new imaging

For the first time, scientists have taken a proper look at an extremely low velocity region. These mysterious pockets of rock lie near the Earth’s core, about 3,000 kilometers (1,864 miles) below the surface. It’s obviously difficult to study at this depth, but we know they exist because of the way seismic waves flow through …

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Sleep helps the brain process emotions, and a new study on mice reveals how

A new study has revealed an important way in which sleep helps the brain process emotions the next day, and while the findings were discovered in mice, they could also help us solve some of the mysteries of human sleep. The role of sleep in brain function remains largely a mystery, but there is compelling …

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The evolution of the head has been surprisingly traced far from our ancestors’ line

What is in the head? According to new research, a bit from our ancestors’ tails. In the early days of complex, multicellular life on Earth, animals began without any spines or brains. They just had a network of neurons scattered throughout the body. However, over the course of millions of years, this system has somehow …

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The ghostly sounds of the aurora borealis can be heard, even when they are not visible

If you’re at a height, and you listen carefully on the nights when the northern sky dances with glowing leaves of green light – the Earth’s stunning aurora borealis – you might hear some ghostly sounds. Almost imperceptible, the sounds are only heard during the most brutal aurora displays, which are described as rushing sounds, …

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Sharp rise in hepatitis in children ‘linked’ to dogs, but here are the facts

The recent rise in cases of sudden and severe hepatitis in children has been widely reported around the world. Recently, several news outlets have highlighted a possible link between cases and contacts with pet dogs. However, the data suggesting this association is very weak – in fact, it is probably much weaker than most of …

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A single hormone has been identified that can help extend life span in mice

Low-protein diets appear to have incredible benefits for the health and lifespan of rodents, fruit flies, and yeast. A new study in mice has now identified a single hormone that is essential for these strange anti-aging effects. This hormone is called fibroblast growth factor 21 (FGF21), and it is secreted by the liver. In recent …

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An unprecedented imitation trick was recorded in a roaring bat

Scientists have discovered a clever mimicry trick some bats use: They will make sounds like wasps when they think they are threatened by predators, giving the acoustic impression that they are more dangerous than they actually are. It’s the first time behavior like this has been recorded in mammals, but it’s happening elsewhere in the …

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This record-breaking “gold standard” star is different from any we’ve seen before

What is in the star? Well, if you’re a very high-end model nearing the end of its life called the HD 222925, it’s a lot, actually. Scientists conducted an analysis of this opaque object, and identified 65 separate components. This is the largest number of elements found in a single body outside the solar system, …

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Astronomers witness for the first time an X-ray ‘fireball’ of a Nova star

The short, but massive outburst of a dead star as it experienced a nova explosion was captured by one of the most powerful X-ray instruments in space. The joint German-Russian eROSITA telescope, aboard the Spektr-RG space observatory at L2 Lagrange point (yes, Webb’s home), has captured for the first time what is known as the …

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The stunning image gets us so excited about what the James Webb Space Telescope can do

All four science instruments on NASA’s James Webb Space Telescope have achieved “perfect alignment” ahead of their official debut this summer, project officials said in a news conference call Monday (May 9). “I am pleased to report that the telescope’s alignment has been completed with better performance than we expected,” said Michael McElwain, James Webb …

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