Saturn's giant moon Titan may not have a vast underground ocean after all. Titan instead may hold deep layers of ice and slush more akin to Earth’s polar seas, with pockets of melted water where life could possibly survive and even thrive, scientists reported Wednesday. The team led by researchers at NASA's Jet Propulsion Laboratory challenged the decade-long assumption of a buried global ocean at Titan after taking a fresh look at observations made years ago by NASA’s Cassini spacecraft aroun
The National Oceanic and Atmospheric Administration’s annual Arctic report card shows how rapidly and profoundly climate change is warming and altering the region.
Oxygen tank strapped to his back, Michael del Rosario moves his fins delicately as he glides along an underwater nursery just off the Dominican Republic coast, proudly showing off the “coral babies” growing on metal structures that look like large spiders. The conservationist enthusiastically points a finger to trace around the largest corals, just starting to reveal their vibrant colors. Del Rosario helped plant these tiny animals in the nursery after they were conceived in an assisted reprod
The 20th anniversary of the annual report tracks how sea ice, snow cover and many other vital signs of the Arctic have changed, and the impact that’s having on people and wildlife.
Most of the footprints are elongated and made by bipeds. The best-preserved ones bear traces of at least four toes.
"This was an absolute surprise. It's extremely different from what we expected."
The direction, distance and motion of the comet through the sky during its closest approach could have made it seem like it was hovering over Bethlehem when Jesus was said to have been born.
The closer to Earth a satellite flies, the clearer a picture it can take of the surface. But low-flying satellites also have to deal with atmospheric drag.
December's faint Ursid meteor shower returns under dark skies, offering a small chance of unexpected activity.
Assuming Google does manage to launch a prototype in 2027, will it simply be a high-stakes technical experiment – or the dawning of a new era?