Planetary Sciences

Nearby super-Earth has a sulfur-rich atmosphere, Webb observations suggest

Using the James Webb Space Telescope (JWST), astronomers from the Space Telescope Science Institute (STScI) in Baltimore, Maryland and elsewhere have conducted transmission spectroscopy of a nearby super-Earth exoplanet ...

Astronomy

Massive merger: Study reveals evidence for origin of supermassive black hole at galaxy's center

The origins of aptly named supermassive black holes—which can weigh in at more than a million times the mass of the sun and reside in the center of most galaxies—remain one of the great mysteries of the cosmos.

Falling for financial scams? It may signal early Alzheimer's disease

Older adults who are more vulnerable to financial scams may have brain changes linked to a higher risk of Alzheimer's disease, according to a first-of-its-kind study led by researchers at the USC Dornsife College of Letters, ...

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Tech Xplore

Video: Mars rover trials

Rover trials in a quarry in the U.K. showing a four-wheeled rover, known as Codi, using its robotic arm and a powerful computer vision system to pick up sample tubes.

Q&A: What 106°F heat does to plants

With temperatures across much of Southern California crossing triple digits this week, we are relying more than ever on plants to keep us cool outside. But the plants don't get much of a break from the relentless sun.

New firmoss species found in Guizhou, China

Huperzia is a genus of lycophyte plants, sometimes known as the firmosses or fir clubmosses. It contains about 25 species that mainly occur in temperate and boreal climatic zones of the world.

ChemCam hits 1 million laser shots on Mars since 2012

The ChemCam instrument, developed at Los Alamos National Laboratory, recently zapped its laser for the 1 millionth time on Mars. Sitting on top of NASA's Curiosity rover, ChemCam has been helping make groundbreaking discoveries ...

Why are we so fascinated with aliens?

Robert Smith is convinced the aliens have won. "The invasion has happened—it's all over," says the University of Alberta space historian who teaches a course on the history of extraterrestrials.

World's first micromachine twists 2D materials at will

Just a few years ago, researchers discovered that changing the angle between two layers of graphene, an atom-thick sheet of carbon, also changed the material's electronic and optical properties. They then learned that a "twist" ...

'Killer robots' are becoming a real threat in Africa

The use of drones in the Sahel, a region of Africa that has been plagued by violence driven by jihadist insurgency for much of the past decade, has become a real problem. In April, for example, Al Qaeda's affiliate in the ...

What makes a book a bestseller? It's tricky

It is a truth generally acknowledged that authors and publishers want their books to become bestsellers. Bestseller lists, especially those published in prestigious media outlets, such as the New York Times, or publishing ...

Greek firefighters calm deadly Athens inferno

Greek emergency services fought back Tuesday against a massive wildfire that scorched the Athens suburbs, killing a woman, causing widespread damage and sending thousands of people fleeing from their homes.