The idea that Venus, often called Earth’s twin, could harbor vast underground lava tubes is gaining serious traction. Recent studies suggest that these massive subterranean structures might span up to ...

Much below normal temperatures should persist across the eastern U.S. into early February before moderating slightly.

Winter of 2026 has been a warning about how extreme weather is becoming a common theme of our lives, be it blistering heat, deep cold, or record snow. It’s a reminder that the atmosphere is responding ...

The bears have not lost weight over the past 20 years in the Norwegian archipelago, despite the region's accelerating warming. Among the reasons: They hunt prey other than seals, such as reindeer and ...

After spying on the electronic signals of adversaries for decades, the NRO's enigmatic Jumpseat spy satellite has emerged from the darkness.

A population of bears in Norway’s Arctic is confounding scientists’ expectations, getting fatter and healthier even as the sea ice melts rapidly.

The possibility of snow in Tampa, Fla. Record heat and fires in Australia. Scientists say climate change is exacerbating ...

Seals favored by Svalbard bears are becoming easier to hunt as ice declines, a study found. But researchers say the situation may be temporary.

These polar bears appear to be maintaining their physical health despite the loss of sea ice—their preferred hunting grounds ...

The west half of the country, including the Midwest, will start to warm up. But that won't be the case for the East Coast.

A powerful geomagnetic storm triggered by a fast coronal mass ejection from the Sun produced rare red aurora over Hanle, Ladakh, on January 1920, captured by the Indian Astronomical Observatory.