New findings from NASA's Hubble Space Telescope show suspected water plumes erupting from Jupiter's icy moon Europa. These observations bolster earlier Hubble work suggesting that Europa is venting water vapor. A team of astronomers, led by William Sparks of the Space Telescope Science Institute in Baltimore, observed these finger-like projections while viewing Europa's limb as the moon passed in front of Jupiter. The study will be published on Sept. 29 in The Astrophysical Journal.

Researchers have recently shown that magnetic bacteria are a promising vehicle for more efficiently delivering tumor-fighting drugs.

An expert comments on a new study on the Greenland Ice Sheet that provides valuable insight on climate change. The research uses unique research methods to establish new estimates of ice loss for both modern and ancient times, the expert explains.

An international research team discovered a human skeleton during its ongoing excavation of the famous Antikythera Shipwreck (circa 65 B.C.).

Your eyes begin to open after a good night of sleep, but something feels weird. You try to take a deep breath but can’t draw air. You can’t sit up, and you may even see a shadow in the corner of the room. This isn’t a nightmare or a medical emergency—you likely just had a case of sleep paralysis.

Addressing fundamental unknowns about the earliest history of Earth’s crust, scientists have precisely dated the world’s oldest rock unit at 4.02 billion years old. Driven by the University of Alberta, the findings suggest that early Earth was largely covered with an oceanic crust-like surface.

Astronomers have captured the sharpest, most detailed observations of a comet breaking apart 67 million miles from Earth, using NASA's Hubble Space Telescope. This study of Comet 332P is published online in The Astrophysical Journal Letters.

A George Washington University researcher has identified a 6,200-year-old indigo-blue fabric from Huaca, Peru, making it one of the oldest-known cotton textiles in the world and the oldest known textile decorated with indigo blue.

A new University of Washington study finds a trend toward earlier sea ice melt in the spring and later ice growth in the fall across all 19 polar bear populations, which can negatively impact the feeding and breeding capabilities of the bears. The paper is the first to quantify the sea ice changes in each polar bear subpopulation across the entire Arctic region using metrics that are specifically relevant to polar bear biology.

Researchers reporting in the journal Current Biology show catastrophic declines in wilderness areas around the world over the last 20 years.

Children with mild, persistent asthma did not have worse asthma symptoms after taking acetaminophen (e.g., Tylenol) for pain or fever, compared to using ibuprofen (e.g., Advil), according to the results of a randomized, double-blind clinical trial recently published in the New England Journal of Medicine.

A new study led by the University of Minnesota shows that monkeys in captivity lose much of their native gut bacteria diversity and their gut bacteria ends up resembling those of humans. The results suggest that switching to a low-fiber, Western diet may have the power to deplete most normal primate gut microbes in favor of a less diverse set of bacteria.

According to NAU Scientists, and their new study, global warming began in the Arctic and tropical oceans before thermometers were widespread enough to record the early signal.

If you really want a drink right now, the source of your craving may be a pea-sized structure deep inside the right side of your brain, according to scientists at the Indiana University School of Medicine.

A research team at Children’s Hospital Los Angeles has generated functional human and mouse tissue-engineered liver from adult stem and progenitor cells. Tissue-engineered Liver (TELi) was found to contain normal structural components such as hepatocytes, bile ducts and blood vessels.

The center of the Milky Way galaxy is currently a quiet place where a supermassive black hole slumbers, only occasionally slurping small sips of hydrogen gas. But it wasn't always this way. A new study shows that 6 million years ago, when the first human ancestors known as hominins walked the Earth, our galaxy's core blazed forth furiously. The evidence for this active phase came from a search for the galaxy's missing mass.

The University of Washington and The Nature Conservancy have created an animated map showing where mammals, birds and amphibians are projected to move in the Western Hemisphere in response to climate change.

A potentially habitable planet – Proxima Centauri b – has been found virtually next door to Earth: about four light years away. The Weizmann Institute’s Dr. Aviv Ofir is a member of the “Pale Red Dot” project; the team found that the new planet may have balmy temperatures and liquid water, albeit a fast orbit. Can it host life? Further research is underway.

Neuroscientists believe they have figured out how rats solve certain navigational problems. If there’s a “reward” at the end of the trip, specialized neurons in the hippocampus of the brain “replay” the route taken to get it, but backward. And the greater the reward, the more often the rats’ brains replay it.

Archaeologists translating a very rare inscription on an ancient Etruscan temple stone have discovered the name Uni -- an important female goddess.