Science News: Recent scientific discoveries and expert analysis

Several vaccines for HIV have been tested in animal studies and an early safety trial in people, showing promising results in both.

Klyuchevskoy volcano in Russia erupted shortly after a powerful 8.8 magnitude earthquake in the same region.

A slowing Atlantic current could have a devastating impact on the planet's rainforests, a new study warns.

A previously-undetected flood over Greenland's ice sheet has confounded model predictions about how the region's meltwater should leak.

Archaeologists are excavating a Roman-era watchtower in Croatia that was "built in a strategic location" on the banks of the Danube River.

Archaeologists in Mexico have finally discovered the 'Land of the White Jaguar,' a stronghold for Maya rebels for nearly 110 years in the 16th and 17th centuries.

Astronomers have discovered a 200-light-year-wide Giant Molecular Cloud dubbed the Midpoint cloud that seems to be feeding star-building material to the heart of the Milky Way.

A 17-year-old badly burned his foot and ankle on Monday (July 28) while hiking off trail near the Lone Star Geyser, Yellowstone National Park representatives said.

A new mRNA-based vaccine triggers a response from the innate immune system to help arm the body against cancer, a mouse study finds. It's now in early human trials.

A cutting-edge chemical analysis of a mystery substance that had stymied experts for 70 years finally revealed its identity.

Footage from the BBC's new nature series "Parenthood" shows African social spiders committing matricide and cannibalizing their elderly relatives. Even Sir David Attenborough was horrified.

Google's earthquake early-warning system has used phone accelerometers on Android devices to increase quake alerts by tenfold across 98 countries.

The 8.8 magnitude megaquake is the joint-sixth largest earthquake ever recorded and the first tsunami waves have already hit Oahu, Hawaii.

A hot blob currently beneath the Appalachians may have peeled off from Greenland around 80 million years ago and moved to where it is today at a rate of 12 miles per million years, scientists have found.

Researchers have mapped the distribution of a jellyfish subspecies and found that creatures which lack a distinctive "knob" are somehow prevented from leaving the Arctic.

A super-Earth exoplanet has been detected within the habitable zone of a nearby red dwarf star, where liquid water might exist on its surface under the right atmospheric conditions.

Researchers recently discovered a huge chain of extinct volcanoes buried deep below South China that formed when two tectonic plates collided during the breakup of Rodinia, around 800 million years ago.

Researchers have unveiled an ancient Egyptian handprint that was left on a soul house tomb offering 4,000 years ago.

Mitchondria may be "watchtowers" of the immune system, contributing to our defenses against germs.

Astronomers have detected a puzzling 'unicorn' object that's speeding up rather than slowing down, contrary to the laws of physics.