Astronomy

Two Protoplanets Emerge from Dusty Disk around Nearby Young Star

These images, taken with ESO’s Very Large Telescope, show a planetary system being born around the young star WISPIT 2. Image credit: ESO / Lawlor et al.

Using ESO’s Very Large Telescope (VLT) and VLT Interferometer (VLTI) in Chile, astronomers have directly observed two gas giants emerging from the planet-forming disk around a star known as WISPIT 2, offering one of the clearest views yet of how a planetary system may form. The arrangement, marked by gaps and rings in the surrounding material, suggests that still more alien worlds could be assembling...

Archaeology

Democracy’s Roots Run Far Deeper than Ancient Greece, New Study Says

The Acropolis at Athens by Leo von Klenze.

Examining 31 ancient societies across Europe, Asia, and the Americas, researchers found that democratic systems were more widespread than once believed — and not determined by population size or geography. The Acropolis at Athens by Leo von Klenze. The word ‘democracy’ was, of course, invented by the Greeks — demokratia meant simply that people (demos) had power (kratos). This definition...

Paleontology

CT Scans Solve Decades-Old Mystery of Triassic Cynodont

Life reconstruction of Cistecynodon parvus. Image credit: Morgan Hopf.

Known from a single skull discovered in South Africa in 1952, Cistecynodon parvus has been shuffled across the evolutionary tree: described at various times as a close relative of advanced cynodonts, a juvenile of another species and even something outside the group altogether. Now, a new study using computed tomography (CT) scans to digitally reconstruct the fossil concludes that this Triassic creature...

Biology

New Species of Steamer Duck Discovered in Chile

Detail of the color pattern of the bill in adult specimens of the Chiloe steamerduck (A) and the Magellanic steamerduck (B). Image credit: Bernabé López-Lanús & Mariano Costa.

In the cold, wave-battered channels off southern Chile, scientists have identified what they say is a new species of the steamer duck genus Tachyeres, a group of notoriously aggressive, often flightless waterfowl found only in South America. Detail of the color pattern of the bill in adult specimens of the Chiloe steamerduck (A) and the Magellanic steamerduck (B). Image credit: Bernabé López-Lanús...

Physics

Physicists Create Levitating Form of Time Crystal

Morrell et al. observed a new type of time crystal -- one whose particles levitate on a cushion of sound while interacting with each other by exchanging sound waves. Image credit: David Song / NYU.

A team of scientists at New York University has created a version of the exotic phase of matter in which particles levitate acoustically and interact by exchanging sound waves. Morrell et al. observed a new type of time crystal — one whose particles levitate on a cushion of sound while interacting with each other by exchanging sound waves. Image credit: David Song / NYU. Time crystals —...

Genetics

New Research Links Daily Multivitamins to Slower Biological Aging

Li et al. evaluated the two-year effect of daily multivitamin-multimineral supplements and cocoa extract (500 mg cocoa flavanols per day, including 80 mg epicatechin) on five DNA methylation measures of biological aging among 958 participants (482 women and 476 men) in the COSMOS study. Image credit: Ri Butov.

In a randomized clinical trial of older adults, researchers found that taking multivitamins for two years modestly slowed epigenetic markers of aging — equivalent to roughly four months less biological aging compared with a placebo. Li et al. evaluated the two-year effect of daily multivitamin-multimineral supplements and cocoa extract (500 mg cocoa flavanols per day, including 80 mg epicatechin)...

Other Sciences

Earth’s Lithosphere was Already Segmented and Mobile 3.5 Billion Years Ago

Hadean Earth. Image credit: Alec Brenner.

By tracing magnetic signals preserved in 3.5-billion-year-old rocks in Western Australia, geoscientists have found the oldest direct evidence yet that parts of the planet’s outer shell were shifting across the globe, pushing the origins of plate motion deep into Earth’s early history. Hadean Earth. Image credit: Alec Brenner. “There has been a huge range of ages suggested for timing,” said...