A new subduction zone south of New Zealand formed when tectonic forces brought a segment of weakened continental crust from the submerged continent of Zealandia next to denser oceanic crust.

Imaginary numbers have real meaning in the world of quantum mechanics, where they carry information about physical states.

An earthquake of approximately magnitude 9 in 1700 in Cascadia could have instead been three or four slightly smaller, but still devastating, quakes.

Two amateur archaeologists diving in the Peace River of Florida found an Ice Age mammoth bone.

Unusual landforms on Mars' Arcadia Planitia appear to be debris-covered glaciers flowing on a flat plain.

A miniature version of Teotihuacan's Citadel has been uncovered in Tikal, raising questions about the diplomatic relationship between the two cities 2,000 years ago.

Glacial melt caused by climate change is redistributing weight on the planet, leading to a shift in Earth's poles as far back as the 1990s.

Exposure to Chernobyl radiation increased the risk of thyroid cancer by breaking DNA strands, but the effects didn't carry to the next generation.

A remarkably simple change in the codes used to correct errors in quantum computers could half the number of destabilizing mistakes in these systems.

Iceberg A68, an enormous hunk of ice that broke off Antarctica in 2017, has finally melted away to nothing in the Atlantic.

A new hypothesis suggests that humans were hypercarnivores more than 2 million years ago, specializing in taking down the largest prey.

The smallest stegosaur footprint ever found has been discovered in China, and suggests that the baby pranced around on hind feet.

The Lyrid meteor shows will light up the skies from April 16 to April 30. Here's how to watch.

Leaving middle seats empty on airplanes helps reduce COVID exposure to passengers, a new CDC study finds.

Each year, 5,200 tons of space dust fall to Earth, far outweighing larger meteorites that hit the planet.

A baby boy born in Iraq with three penises is the first reported human case of triphallia. He's doing well after surgery.

The longest sawfish ever measured washed up in Florida, not far from another large specimen.

The permanent oxygenation of Earth's atmosphere took twice as long as previously believed and finally finished up to 100 million years later than expected.

A new vaccine approach to HIV that stimulates a set of rare immune cells showed 97% success at targeting those cells in its first tests in humans.

Humans have what it takes to make venom, but it may not be worth the trouble.

Most predators are stymied by the cicadas' 17-year life spans, but the insects are still vulnerable to being zombified.

The lost continent is a submerged chunk of crust that broke off from Gondwana 80 million years ago.

The first-ever images of a magnetic field around a black hole may explain the jet of matter and energy emanating from the center of galaxy M87.

Former Trump intelligence director John Ratcliffe told Fox News that more unexplained sightings of flying objects will soon be declassified.