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Astronomers are racing to study our solar system's newest 'interstellar visitor.' Here's why.
By Harry Baker published
Astronomers have been given the rare opportunity to study an extrasolar object after the recent discovery of the interstellar comet 3I/ATLAS. Experts tell Live Science how they are planning to observe the cosmic visitor.

Antarctic sea ice collapse linked to a mysterious spike in ocean salt
By Ben Turner published
Satellite imagery has revealed a yet-to-be-explained rise in the Southern Ocean's salinity. It could be a key factor in the decline of the region's sea ice.

A dangerous condition that can cause seizures, coma and death could rise dramatically as the climate warms
By Sanket Jain published
Researchers are uncovering a link between rising temperatures and hyponatremia, a condition caused by a dangerous decline in sodium in the body.

8-year-old with rare, fatal disease shows dramatic improvement on experimental treatment
By Nicoletta Lanese published
A child with a rare genetic disease that affects mitochondria is the first person to receive a new experimental treatment for the potentially life-threatening condition.

Ozempic-style drugs treat type 1 diabetes, not only type 2, study finds
By Jennifer Zieba published
A clinical trial for semaglutide, the active ingredient in Ozempic, found that it improved blood sugar control in people with type 1 diabetes.

Some early-onset cancers are on the rise. Why?
By Skyler Ware published
The rates of certain early-onset cancers are on the rise. The reasons are complex, experts say.

AI hallucinates more frequently the more advanced it gets. Is there any way of stopping it?
By Roland Moore-Colyer published
OpenAI's most advanced reasoning model is smarter than ever — but it hallucinates more than previous models, too.

Groundwater in the Colorado River basin won't run out — but eventually we won’t be able to get at it, scientists warn
By Chris Simms published
The Colorado River basin has lost a Lake Mead’s worth of water in the last 20 years — and scientists say we’re passing a "critical point" where pumping groundwater will become too expensive.

People's mental health often improves after weight-loss surgery. A study pinpoints the real reason why.
By Marianne Guenot published
Feeling less stigma — not losing weight — was linked to better mental health and eating behaviors after bariatric surgery.
Earth's energy imbalance is rising much faster than scientists expected — and now researchers worry they might lose the means to figure out why
By Sascha Pare published
For reasons still unknown, Earth's energy imbalance is rising much faster than models can account for. Now, scientists are calling for long-term investment in monitoring capability, so that they can make informed predictions about climate change.
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