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Scientists Find Cave on the Moon that Could be Used to Shelter Future Explorers

​​​​​​​ It's located at the Sea of Tranquility, just 250 miles (400 kilometers) from Apollo 11's landing site. - The AP
​​​​​​​ It's located at the Sea of Tranquility, just 250 miles (400 kilometers) from Apollo 11's landing site. - The AP
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Scientists Find Cave on the Moon that Could be Used to Shelter Future Explorers

​​​​​​​ It's located at the Sea of Tranquility, just 250 miles (400 kilometers) from Apollo 11's landing site. - The AP
​​​​​​​ It's located at the Sea of Tranquility, just 250 miles (400 kilometers) from Apollo 11's landing site. - The AP

Scientists have confirmed a cave on the moon, not far from where Neil Armstrong and Buzz Aldrin landed 55 years ago, and suspect there are hundreds more that could house future astronauts.

An Italian-led team reported Monday that there's evidence for a sizable cave accessible from the deepest known pit on the moon.
It's located at the Sea of Tranquility, just 250 miles (400 kilometers) from Apollo 11's landing site.

The pit, like the more than 200 others discovered up there, was created by the collapse of a lava tube.

Researchers analyzed radar measurements by NASA's Lunar Reconnaissance Orbiter, and compared the results with lava tubes on Earth. Their findings appeared in the journal Nature Astronomy.

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US Enters First Major Heat Wave of 2025

A chef takes a break to check his phone in a sliver of shade outside Union Station on August 12, 2016 in Washington,DC. Gabriella Demczuk / GETTY IMAGES NORTH AMERICA/AFP/File
A chef takes a break to check his phone in a sliver of shade outside Union Station on August 12, 2016 in Washington,DC. Gabriella Demczuk / GETTY IMAGES NORTH AMERICA/AFP/File
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US Enters First Major Heat Wave of 2025

A chef takes a break to check his phone in a sliver of shade outside Union Station on August 12, 2016 in Washington,DC. Gabriella Demczuk / GETTY IMAGES NORTH AMERICA/AFP/File
A chef takes a break to check his phone in a sliver of shade outside Union Station on August 12, 2016 in Washington,DC. Gabriella Demczuk / GETTY IMAGES NORTH AMERICA/AFP/File

The United States is experiencing its first significant heat wave of the year, beginning Friday across the Great Plains and expanding into parts of the Midwest and Great Lakes over the weekend, according to the National Weather Service (NWS).

The extreme heat is expected to intensify as it shifts to the East Coast early next week, with temperatures reaching the highest level on the NWS's HeatRisk tool: Level 4, or "Extreme."

"Numerous daily record highs and warm lows are likely," the NWS said. "Light winds, sunny days, and a lack of overnight cooling will significantly increase the danger."

The capital city Washington could see highs of 99 degrees Fahrenheit (37 degrees Celsius) on Monday and 101F on Tuesday, AFP said.

This level of heat can be dangerous for anyone without access to effective cooling and hydration, especially those engaged in prolonged outdoor activity, the NWS warns.

Designated cooling centers -- including recreation centers and libraries -- will be open during business hours, the mayor's office announced. Homeless residents will have access to shelters.

Overnight lows may remain around 80F in urban areas such as Washington, Baltimore, Philadelphia, and New York City.

Fueled by human-caused climate change, 2024 was the warmest year on record globally -- and 2025 is projected to rank among the top three.