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![A plane drops pink flame retardant during the Eaton Fire in Los Angeles, California on Monday (Jan. 13).](https://cdn.mos.cms.futurecdn.net/6FERzML27avDHHGKj9cmw4-320-80.jpg)
What's in pink fire retardant being dropped on LA, and is it dangerous?
By Patrick Pester published
Parts of Southern California are covered with pink fire retardant as firefighters try to control deadly wildfires raging in Los Angeles. But what is Phos-Chek fire retardant and is it safe?
![An artist's interpretation of Earth split in half revealing its inner layers](https://cdn.mos.cms.futurecdn.net/f5Yj5EQ7gUdiNMkyJ5VdTe-320-80.jpg)
Scientists discover 'sunken worlds' hidden deep within Earth's mantle that shouldn't be there
By Harry Baker published
A new way of measuring structures deep inside Earth has highlighted numerous previously unknown blobs within our planet's mantle. These anomalies are surprisingly similar to sunken chunks of Earth's crust but appear in seemingly impossible places.
![A satellite photo of a large algal bloom with swirling clouds and an island](https://cdn.mos.cms.futurecdn.net/agtKV4FfxUwmw5HtkGYV2P-320-80.jpg)
Svalbard's radioactive 'Bear Island' surrounded by rare cloud swirls and a giant algal bloom
By Harry Baker published
Earth from space A 2023 satellite image captured a pair of peculiar phenomena painting parallel swirls in the sea and sky around Norway's Bear Island, which is surrounded by extremely radioactive waters left behind by a doomed Soviet submarine.
![A stock image of a storm with heavy rain.](https://cdn.mos.cms.futurecdn.net/fMeqzYYtWcbfqgQPPmnJp-320-80.jpg)
'Unusual' and weak La Niña finally here, NOAA confirms
By Patrick Pester published
NOAA has declared that a La Niña is underway. This cool weather event is likely to be shorter and weaker than usual, but will still affect global weather and climate.
![A photo of an engineer working in the target chamber of the National Ignition Facility](https://cdn.mos.cms.futurecdn.net/FB4A8oUUeZk7vnQeXkX7DU-320-80.jpg)
Nuclear fusion could be the clean energy of the future — but these 'tough' challenges stand in the way
By George R. Tynan, Farhat Beg published
Even once researchers can reliably get more power out of a fusion reaction than they put in, they'll still need to overcome engineering challenges to scale up fusion energy.
![Split image of a firefighter amid the Palisades fires in Los Angeles and Yellowstone's caldera.](https://cdn.mos.cms.futurecdn.net/bLMVjaSyou4jYfdeiUasbi-320-80.jpg)
Snowstorms, fire and Yellowstone's next eruption
By Pandora Dewan published
Science news this week Jan 11, 2025: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.
![A close-up of a Christmas fern](https://cdn.mos.cms.futurecdn.net/ECGksCVCmDoMVrpzR468Ha-320-80.png)
Ferns can evolve 'backward,' scientists discover
By Jacob S. Suissa published
Evolution is often depicted as a steady forward march from simple to complex forms. But new research shows that certain ferns can evolve ‘backward.’
![A photo of the Palisade fire approaching a neighborhood](https://cdn.mos.cms.futurecdn.net/FD9uV38wCXxSzqhN28vpNA-320-80.jpg)
Stark 'drought' maps reveal just why wildfires have blazed through Los Angeles
By Ming Pan published
The state is seeing a sharp water divide this year, with lots of rain in the north while the south has stayed dry. A hydrologist explains what’s happening.
![Firefighters respond to wildfires in the Pacific Palisades, California, on January 7.](https://cdn.mos.cms.futurecdn.net/DFga6QxL4binXG7hoLhn47-320-80.jpg)
2024 was the hottest year on record, and the 1st to breach the 1.5 C global warming limit, data reveals
By Ben Turner published
Scientists have warned that the Paris Agreement to limit global warming will likely be breached as data reveals 2024 was the hottest year in human history.
![Aerial view of a pyramid-shaped peak in the Ellsworth Mountains of Antarctica. The peak is visible among a deep field of snow.](https://cdn.mos.cms.futurecdn.net/gX9gyRTJmRZV6vGr6fBDxf-320-80.png)
Antarctica 'pyramid': The strangely symmetrical mountain that sparked a major alien conspiracy theory
By Sascha Pare published
Antarctica is home to a peak shaped like a perfect pyramid — but contrary to what conspiracy theorists say, the mountain's four symmetrical faces were forged through natural processes.
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