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A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit -- but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, this icy world could still surprise us.

Scientists studying a rock sample collected by NASA's Curiosity rover have uncovered something tantalizing: the largest organic molecules ever detected on Mars. The compounds -- decane, undecane, and dodecane -- may be fragments of fatty acids, which ...

Coral reefs, worth an estimated $9.8 trillion a year to humanity, are in far worse shape than previously realized. A massive international study found that during the 2014-2017 global marine heatwave, more than half of the world's reefs suffered ...

Even when Earth was locked in its most extreme deep freeze, the planet's climate may not have been as silent and still as once believed. New research from ancient Scottish rocks reveals that during Snowball Earth -- when ice sheets reached the ...

Swapping just an hour of TV a day for something more active could significantly lower the risk of developing major depression--especially in middle age. A large Dutch study tracking more than 65,000 adults over four years found that replacing 60 ...

For the first time, deadly H5N1 bird flu has been confirmed as the cause of a wildlife die-off in Antarctica, killing more than 50 skuas during the 2023-2024 summers. Researchers on an Antarctic expedition found the virus ravaging these powerful ...

Deep inside a nearby galaxy cloaked in thick clouds of gas and dust, astronomers have uncovered a surprising treasure trove of organic molecules using the James Webb Space Telescope. Peering through the cosmic veil in infrared light, researchers ...

A six-week study from the University of Nottingham suggests that pairing fermented kefir with a diverse prebiotic fiber mix may deliver a powerful anti-inflammatory boost. This "synbiotic" combination outperformed omega-3 supplements and fiber alone, ...

A simple brain-training program that sharpens how quickly older adults process visual information may have a surprisingly powerful long-term payoff. In a major 20-year study of adults 65 and older, those who completed five to six weeks of adaptive . ...

A new clinical trial suggests that changing when you eat could make a meaningful difference for people living with Crohn's disease. Researchers found that time-restricted feeding, a form of intermittent fasting that limits meals to an 8-hour daily .. ...