Science Explorer
Science Explorer

Science Explorer

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New Lithium-Plasma Engine Passes Key Mars Propulsion Test
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New Lithium-Plasma Engine Passes Key Mars Propulsion Test

You’re on the fourth human mission to Mars, and you’re told the Odyssey spacecraft designed to take you there will be the smoothest ride you’ll ever take. It features a newly christened electric propulsion engine which was in the late stages of testing during the first three missions. The mission starts and the spacecraft travels at a crawl, and you wonder if it’s broken. A week goes by and you’re now traveling at more than 400,000 kilometers (250,000 miles) per hour, and your mind is blown as to how fast you’re going, how quickly that happened, and that this mission might be more awesome than you thought.

Human Genome Pioneer J. Craig Venter Dies at 79
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Human Genome Pioneer J. Craig Venter Dies at 79

His work helped scientists decode life.ScienceAlert stories are written, fact-checked, and edited by humans, never generated by AI. Don't miss a story, subscribe here.

Most People Develop Diverticulosis in Their Gut by The Age of 80… So What Is It?
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Most People Develop Diverticulosis in Their Gut by The Age of 80… So What Is It?

The more you know...ScienceAlert stories are written, fact-checked, and edited by humans, never generated by AI. Don't miss a story, subscribe here.

Yawning Does Something Unexpected in Your Brain, MRI Scans Reveal
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Yawning Does Something Unexpected in Your Brain, MRI Scans Reveal

We still don't know why we do it.ScienceAlert stories are written, fact-checked, and edited by humans, never generated by AI. Don't miss a story, subscribe here.

Poop-encrusted chamber pots from the Roman Empire reveal oldest known human cases of Crypto parasite
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Poop-encrusted chamber pots from the Roman Empire reveal oldest known human cases of Crypto parasite

Chamber pots from the frontier of the Roman Empire have provided the world's earliest evidence of humans infected with the Cryptosporidium parasite.