A team of climbers just summited 3 of the most challenging peaks in the world. They made it even harder by collecting roughly 2,000 pounds of trash along the way.

Tech Insider : Environment
Garrett Madison
Mountaineer and Everest guide Garrett Madison climbed Mt. Everest, Mt. Lhotse, and Mt. Nuptse in a single expedition season. He and his team also removed about 2,000 pounds of trash from these peaks.

Photo courtesy of Garrett Madison

NASA is putting an 'artificial star' in orbit around Earth

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Illustration of Earth as seen far from space with stars in the background
NASA aims to launch a mini satellite the size of a bread box that could become one of the most important astronomical tools by the end of this decade.

RomoloTavani/Getty Images

Elon Musk's Starlink satellites could burn up the ozone layer, scientists warn

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Elon Musk SpaceX
Elon Musk near a Falcon 9 rocket at SpaceX headquarters in Hawthorne, California in 2018.

David McNew/Getty Images

My son's video game habit worried me but it fueled his interest in coding, robots, and AI. At age 16, he won $55,000 at a science fair.

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teenage boy in red shirt working on tiny computer and three smartphones on a white card table with small plants growing under a grow light an a white cat sitting on an armchair beside him
John Benedict Estrada works on infrared images for his science fair project.

Maria Estrada

Scientists finally think they know why giraffe necks are so long

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two adult giraffes walking with one smaller baby giraffe on a grassy plain
A new study questions the decades-long theory about why giraffes have such long necks.

Douglas Cavener

Jeff Bezos has a vision to colonize space with a trillion people. We asked experts to put it to the test.

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Amazon CEO Jeff Bezos
Jeff Bezos dreams of a future where a trillion humans live inside gigantic space stations floating throughout the solar system.

AP/Ted S. Warren

Falling birth rates are freaking countries out and spawning dubious fixes like tax breaks, cheaper cars, and free surgery

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A graphic showing fertility rates on the decline.
Countries with declining fertility rates have experimented with novel solutions to try to get women to have more babies.

TanyaJoy/Getty Images

Why 4 new bird flu developments have experts worried about the virus

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lineup of black and white cows sticking their heads thorough a metal fence with some cows looking at a small black bird standing on the dirt path in front of them
Since H5N1 made the unexpected jump from birds to cattle, experts are increasingly worried about human spread.

Rodrigo Abd/AP Photo

Scientists used AI to figure out elephants have names for themselves

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image of two elephants fighting or playing with their trunks
Elephants in Kenya in 2023.

Eric Lafforgue/Art in All of Us/Getty Images

A mysterious hole on Mars could be a jackpot of scientific discoveries, from extraterrestrial life to where astronauts could live

Tech Insider
white surface on mars with a dark hole near the center that could be a portal to an underground lava tube
This 2022 image taken by the HiRISE camera onboard NASA's Mars Reconnaissance Orbiter has reignited the conversation around these mysterious holes on Mars.

NASA/JPL-Caltech/UArizona

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