The cat family has an amazing array of eye colors stemming from one unusual ancestor.
A recent solar explosion that almost reached "X-class" status has hurled a massive coronal mass ejection toward Earth, which will likely hit our planet and trigger a geomagnetic storm on Dec. 1.
With the solar cycle set to peak earlier than predicted, the sun's corona should look its spectacular spiky best for April 8's total solar eclipse.
Footage of a kangaroo attempting to drown a dog in a river in Australia went viral online, but this isn't the first time a marsupial has pulled this trick.
An underwater volcano that gave birth to a new island off Japan's Iwo Jima island has erupted again, sending huge plumes of ash and smoke into the sky in footage released by Japan's Coast Guard.
Earth will become too hot to handle in a billion years. There's a (very) remote chance a passing star could save us by knocking our planet back into the habitable zone.
A 2,000-foot-long hydrothermal field teeming with life and giant chimneys spouting boiling water has been discovered next to an underwater volcano off the coast of Ecuador.
Two new species of pygmy squid have been discovered off Okinawa and named after mythical creatures.
Archaeologists in Finland have identified a 6,500-year-old site as potential cemetery with 200 graves.
The NISAR satellite, a collaboration between NASA and India's space agency ISRO, will help scientists monitor how climate change is affecting Earth's varied landscapes.
An early-stage clinical trial raises hope for a new, single-dose HIV therapy that uses CRISPR, the famous gene-editing system.
A dazzling new James Webb telescope image of the region near the Milky Way's central black hole reveals thousands of newborn stars among the "most extreme cosmic environment" in the galaxy.
NASA has revealed a new false-color image of Alaska's Malaspina Glacier that highlights several recent findings about the massive ice mass.
A new paper claims that the ozone hole above Antarctica is getting deeper, suggesting that it is not healing as expected. However, other researchers say the study's results are misleading.
Across the country, pet dogs are falling sick with a flu-like illness, but scientists don't yet know what's causing it.
Boost your metabolism and develop overall strength with the 35lb PowerBlock Adjustable Kettlebell.
The robot was tested in a simulated Martian environment, and can one day be used to aid humanity's survival on the Red Planet.
Volunteer conservationists in Germany have unearthed a collection of artifacts, including Bronze Age swords, medieval coins and jewelry.
If dark matter is made from "dark" versions of the basic building blocks of ordinary matter, the world's largest particle accelerator should be able to pin it down, a new study suggests.