The death of an endangered fin whale was a marine murder mystery. Now, we have a suspect: orcas.

Tech Insider
Bite wounds on a fin whale's fin is evidence of a killer whale attack, NOAA says.
Bite wounds on a fin whale's fin is evidence of a killer whale attack, NOAA says.

NOAA Fisheries/West Coast Marine Mammal Stranding Network, taken under federal permit 24359.

The eating habits of tech execs: From Mark Zuckerberg's 'kill what you eat' routine to Elon Musk's Diet Coke obsession

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Musk + Donut
Elon Musk loves donuts. The Twitter CEO recently tweeted that he eats a donut every morning.

Dimitrios Kambouris / Staff/ Brian Hagiwara/Getty Images/ Trisha Gopal/Insider

US scientists have launched a new nuclear era they call the 'age of ignition' but it's still a distant dream from the age of nuclear power

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Two people in white coverall suits look at the machinery at the National Ignition Facility Target Area.
Operators inspect the National Ignition Facility target chamber where the fusion ignition experiments take place.

Jason Laurea/Lawrence Livermore National Laboratory

Apes can remember friends they haven't seen for over 25 years, a new study shows. That's longer than a dolphin's memory.

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Two chimps interacting while on some tree branches.
Apes, which bonobos and chimpanzees, are highly social.

Kate Grounds/Edinburgh Zoo

How to choose the best Christmas tree, whether you want a rich pine scent or long-lasting needles

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A person in a plaid shirt hands down a Fraser fir Christmas tree while unloading a truck full of trees
The vast majority of Christmas trees sold in the US are firs.

REUTERS/Gary Cameron

Some turkeys are so big they have a hard time walking, but scientists have found ways to breed healthier birds

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A heritage breed black Spanish tom turkey free ranging in a grassy green field.
Farmers bread turkeys to grow so big, so fast, that their skeletons couldn't keep up and their legs gave in. Heritage turkey breeds, like this one, don't have that problem.

Elizabeth Beard

Traditional shark nets are known as 'walls of death.' A new eco-friendly barrier uses magnetic fields to deter sharks instead of trap them.

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Black pipes attached to cement blocks underwater
The SharkSafe Barrier uses pipes and magnets to create a physical and magnetic barrier for sharks.

Sara Andreotti

A NASA cat named Taters makes history by starring in the first ultra-HD video streamed from deep space

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orange cat with white markings and blue eyes crouched on a grey couch watching a red laser with sciencey graphics and symbols lightly overlayed on the image
A screenshot from the video NASA laser-beamed to Earth from deep space.

NASA/JPL-Caltech

A high schooler's award-winning algorithm could help Elon Musk's company Neuralink and pave the way for neural implants that never need replacing

Tech Insider
A high school student in a navy blazer and white shirt holds a black headset
Canadian high school student Anush Mutyala with the headset he used as part of his neural implant science fair project.

Canada-Wide Science Fair

The US wants to build a different kind of nuclear reactor from a decades-old concept that could power ships and other off-the-grid locations

Tech Insider
A circular window with molten salt pouring onto a surface
Molten salts are used as coolants in the Papirus installation at CEA Cadarache in Saint-Paul-les-Durance, France.

Nicolas Tucat/AFP via Getty Images

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