Science

How magnets could help astronauts explore the moon and Mars

How magnets could help astronauts explore the moon and Mars

Scientists have developed a more efficient way to generate oxygen for astronauts that could help with future missions into deep space. Current life-support systems such as those on the International Space Station (ISS) rely on bulky centrifuges to separate the oxygen and hydrogen bubbles created when water is split by electricity, a process known as electrolysis. On Earth, bubbles rise …

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Scientists Pinpoint Cause of Mysterious Electrical Surges on Satellites

Scientists Pinpoint Cause of Mysterious Electrical Surges on Satellites

In 1994, two Canadian TV satellites failed within mere hours of each other. The pair was in a geostationary orbit when a major solar storm hit, resulting in electrostatic discharges that disabled their control electronics. Anik E1 and E2 are just one example of the effects of electric charge buildup on satellites, known as spacecraft environment discharge. New findings show …

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Interstellar invader comet 3I/ATLAS could be investigated by these spacecraft as it races past the sun: ‘This could be literally a once-in-a-lifetime opportunity’

Interstellar invader comet 3I/ATLAS could be investigated by these spacecraft as it races past the sun: ‘This could be literally a once-in-a-lifetime opportunity’

New research investigates the possibility that different spacecraft could visit Comet 3I/ATLAS, giving scientists a unique on-location view of the interstellar visitor, or even offering the chance to collect material that could be much older than the bodies of our solar system. Discovered on July 1 by the ATLAS (Asteroid Terrestrial-impact Last Alert System), 3I/ATLAS is just the third-ever object …

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As the Great Salt Lake Shrinks, Something Unexpected Is Rising to the Surface

As the Great Salt Lake Shrinks, Something Unexpected Is Rising to the Surface

The Great Salt Lake once reached depths of up to 1,000 feet and spanned roughly 20,000 square miles, but today, it mostly resembles a parched wasteland. So, when signs of life suddenly began popping up across the drying playa, scientists were perplexed. In the last several years, reed-covered mounds have appeared off the lake’s southeast shore. These densely vegetated oases …

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Earth’s Rotation Is Slowing, And It Might Explain Why We Have Oxygen : ScienceAlert

Earth’s Rotation Is Slowing, And It Might Explain Why We Have Oxygen : ScienceAlert

Ever since its formation around 4.5 billion years ago, Earth’s rotation has been gradually slowing down, and its days have gotten progressively longer as a result. While Earth’s slowdown is not noticeable on human timescales, it’s enough to work significant changes over eons. One of those changes is perhaps the most significant of all, at least to us: lengthening days …

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We still haven’t documented 90 percent of animals on Earth

We still haven’t documented 90 percent of animals on Earth

It’s easy to assume, as many people do, that our planet is well explored. In the last few centuries, humans have summited Earth’s highest peaks, dived its deepest ocean trenches, and trekked to the North and South poles, documenting the diversity of life along the way — the many birds, butterflies, fish, and other creatures with which we share our …

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Humans inherited Neanderthal genes that limit our muscle activity

Humans inherited Neanderthal genes that limit our muscle activity

Most of us carry a small trace of Neanderthal ancestry and, in some cases, that legacy sits in our legs. A single change in a muscle enzyme can subtly throttle how hard muscles can work under pressure. People outside Africa typically carry about 2 percent Neanderthal DNA in their genomes, a result of ancient interbreeding between populations. That shared history …

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