Arizona heat almost killed Lois Nigrin. Her coma, burns, and medical bills show the dangers of heat that many Americans face today.

Tech Insider
A portrait photo of Lois Nigrin standing in front of foliage.
Lois Nigrin, 59, feels lucky to be alive today.

Arin Yoon for Insider

This article is part of Insider's "The True Cost of Extreme Weather" project. Read more here.

Climate change is already costing us money, but we have a chance to limit the worst of it and prosper. Here's how.

Tech Insider : Economy, Economy
California wildfire
Extreme weather is occurring more often. These events pose risks to the economy.

AP

This article is part of Insider's "The True Cost of Extreme Weather" project. Read more here.

Elon Musk says Neuralink can create the 'Luke Skywalker solution' amid claims over monkey deaths

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Elon Musk
Elon Musk founded Neuralink in 2016.

Chesnot/Getty Images

The distressing downside of fitness trackers

Tech Insider
A women looks overwhelmed as she tries to concentrate on all the fitness metrics buzzing and moving all around her.
Fitness trackers have taken over. But is the deluge of fitness data making Americans healthier?

Arantza Pena Popo/ Insider

Ancient people may have used human skulls for cups and other body parts for tools, according to a burial site in Spain

Tech Insider
The opening of Cueva de los Marmoles in Spain, which is dark inside and shows greenery and rocks outside
The opening to Cueva de los Marmoles, where many prehistoric people buried their dead for millennia.

J.C. Vera Rodríguez, CC-BY 4.0

Sunken ancient temples were found in a mysterious underwater city, with Egyptian and Greek treasures

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Images show Grecian artefacts buried in mud underwater on the left, and gold Egyptian artefacts on the right.
Side-by-side images show ancient artifact found in the mud in the Thonis-Heracleion site in the Aboukir Bay in Egypt.

Christoph Gerigk ©Franck Goddio/Hilti Foundation; Insider

A giant eruption covered 'over half the sun,' then crashed into Earth nearly 12 hours earlier than forecast

Tech Insider
sun solar surface side by side images left shows the full orange disk with a giant loop of plasma circled and a green arrow pointing to that loop on the right in a purple close-up
This filament formed on the sun, then erupted to send solar material speeding toward Earth.

NASA Solar Dynamics Observatory

Side-by-side photos show 4 major changes made to SpaceX's Starship rocket system after its first launch ended in an explosion

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Side by side annotated image show Starship on its launchpad in April and September. Arrows and circle highlight two changes that have been made to the rocket since it last blew up.
Annotated images shows two of SpaceX biggest changes to its Starship mega-rocket, adding a vent between the stages and a flooding system to the launch pad.

SpaceX/Insider

Australia's rare pink-diamond mine formed from the clashing and stretching of continents, a new study found. The discovery could lead to more colorful diamonds.

Tech Insider
A photo of four octahedral pink diamonds found in the Argyle diamond mine.
Pink diamonds are rare. Some estimates put them at about 3% of diamond output.

Murray Rayner

Why the sun has two giant holes, and what that means for Earth

Tech Insider
  • Two giant holes, 18 to 30 times the size of Earth, have appeared on the surface of the sun.
  • They could send 1.8 million mph solar winds toward Earth.
  • They're called coronal holes, which are cooler areas that don't glow as bright as others.

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