Animals in the savanna are more scared of the sound of a human voice than lions, dogs, or guns, a study found

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A collage of a group of tourists on safari with binoculars next to a roaring lion.
Animals on the savanna reacted with much more fear when hearing human voices than lions roars.

[left] David De Lossy/Getty Images; [right] Marcos del Mazo/Contributor/Getty Images

Gray whales have been mysteriously washing up dead on the Pacific coast. Now scientists think they might have the answer.

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A dead juvenile Gray Whale sits in the sand on Limantour Beach at Point Reyes National Seashore on May 25, 2019 in Point Reyes Station, California.
A dead juvenile Gray Whale sits in the sand on Limantour Beach at Point Reyes National Seashore on May 25, 2019 in Point Reyes Station, California.

Justin Sullivan/Getty Images

Asteroid 33 Polyhymnia is so dense it may actually contain elements never before seen on Earth, according to a new study

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image of a few asteroid in space
Artistic rendering of asteroids in space.

dottedhippo/Getty Images

A part of Afghanistan not known for seismic activity was struck by an 'unprecedented' number of big earthquakes this week and no one knows when they'll end, an expert says

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Several tents that residents of Herat are sleeping in to avoid buildings that could collapse in future earthquakes.
Thousands of people living in Herat are now sleeping in tents to stay safe from buildings that could collapse in future quakes.

Esmatullah Habibian/Middle East Images/AFP via Getty Images

Vaccine hesitancy is a problem for dogs too, study finds

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Veterinary technicians vaccinate a dog outside the vehicle at a drive-through pet vaccine clinic at Mission Viejo Animal Services Center amid the COVID-19 pandemic on June 23, 2020 in Mission Viejo, California.
A dog is vaccinated at a drive-through clinic in California during the pandemic.

Mario Tama/Getty Images

At age 12, I signed myself up for online astronomy classes under my mom's name. 14 years later I became the first Mexican-born woman to go to space.

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Katya Echazarreta
Katya Echazarreta became the first Mexican-born woman in space in June 2022.

Felix Kunze

Mars's sad, potato-shaped moon eclipsing the sun shown in NASA video. Be glad you're on Earth for this weekend's solar eclipse.

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An animated GIF of Mars's moon Phobos transiting across the sun looking like a blob
That slow-moving blob is Mars's moon Phobos transiting across the sun.

NASA/JPL-Caltech/ASU/MSSS/SSI

Antarctica has lost 8.3 trillion tons of ice since 1997, a new study found. That's enough to cover the contiguous US in 3 feet of water.

Tech Insider : Environment
A cliff face with melting ice in Antarctica.
Antarctica saw temperatures 39 degrees Celsius above average last year.

Pauline Askin/Reuters

NASA released the first close-up photos of the largest asteroid sample ever collected

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A circular piece of the container holding the Bennu asteroid sample with black rocks from the asteroid on it
The sample collector with a pile of asteroid material resting on it.

NASA/Erika Blumenfeld & Joseph Aebersold

Elon Musk’s worst nightmare

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A collage of Missy Cummings, Elon Musk, and self driving cars.
Missy Cummings flew fighter jets for the Navy. Now, as a leading expert on automation and AI, she's taking aim at self-driving cars.

Chelsea Jia Feng/Insider

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