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Leaves and young shoots of hongyacha. Image credit: Ji-Qiang Jin et al, doi: 10.1021/acs.jafc.8b03433.

Hongyacha: Caffeine-Free Tea Plant Discovered in China

Nov 12, 2018 by Sergio Prostak

Hongyacha, a new type of wild tea plant from the mountains of southern China, contains little or no caffeine, according to a study published in the Journal...

Whole body irradiation with visible blue light improves blood pressure. Image credit: Daniel Reche.

Blue Light Exposure Reduces Systolic Blood Pressure, Study Shows

Nov 12, 2018 by News Staff

Exposure to blue light significantly decreases systolic blood pressure and increases heart rate, lowering the risk of developing cardiovascular disease,...

Images of four colliding galaxies, along with close-up views of their coalescing nuclei in the bright cores, are shown beneath the Hubble snapshots of NGC 6240. The left image of each pair, showing the merging galaxies, was taken by the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS). The right image, showing the bright cores, was taken in near-infrared light by the W. M. Keck Observatory in Hawaii, using adaptive optics to sharpen the view. The nuclei in each of the Hubble and Keck Observatory infrared photos are only about 3,000 light-years apart -- a near-embrace in cosmic terms. If there are pairs of black holes, they will likely merge within the next 10 million years to form a more massive black hole. These observations are part of the largest-ever survey of the cores of nearby galaxies using high-resolution images in near-infrared light taken by the Hubble and Keck observatories. Image credit: NASA / ESA / M. Koss, Eureka Scientific, Inc / W. M. Keck Observatory / Pan-STARRS.

Astronomers Find Supermassive Black Hole Pairs in Colliding Galaxies

Nov 9, 2018 by News Staff

A team of astronomers led by Michael Koss of Eureka Scientific Inc. has observed several pairs of galaxies in the final stages of merging together into...

Geologists Professor Stephen Rowland and Dr. Mario Caputo discovered that a set of 28 footprints left behind by a reptile 310 million years ago are the oldest ever to be found in Grand Canyon National Park. Image credit: Stephen Rowland.

Geologists Find 310-Million-Year-Old Reptile Footprints in Grand Canyon National Park

Nov 9, 2018 by News Staff

Geologists have discovered a set of 28 footprints left behind by an ancient reptile approximately 310 million years ago in what is now Grand Canyon National...

James Clark and Dr. Kerri Cahoy propose that laser technology on Earth could emit a beacon strong enough to attract attention of alien astronomers from as far as 20,000 light-years away. Image credit: A. Fitzsimmons, ESO / Sci-News.com.

Megawatt-Class Lasers from Earth Could Attract Alien Astronomers, Says New Study

Nov 9, 2018 by News Staff

A new study, published in the Astrophysical Journal, suggests that if a 1- to 2-megawatt (MW) laser were focused through a 30- to 45-m telescope and aimed...

Photograph of the 5,000th sunrise over Mars captured by NASA’s Opportunity rover. Image credit: NASA.

Researchers Capture Sound of Martian Sunrise

Nov 9, 2018 by News Staff

A team of researchers from Anglia Ruskin University and the University of Exeter, UK, has created the soundtrack of the Martian sunrise captured by NASA’s...

A new study by Auersperg et al supports previous studies on Goffin’s cockatoos showing that they can not only select, but create different tools depending on the task at hand. Image credit: Goffin Lab, University of Veterinary Medicine Vienna.

Goffin’s Cockatoos Can Manufacture, Manipulate Tools of Different Length

Nov 9, 2018 by News Staff

An Indonesian species of parrot known as the Goffin’s cockatoo (Cacatua goffiniana) can tear a cardboard sheet into long strips as tools to reach food,...

NASA’s Parker Solar Probe approaching the Sun. Image credit: NASA’s Scientific Visualization Studio.

Parker Solar Probe Makes Its First Close Approach to the Sun

Nov 8, 2018 by News Staff

On November 5, 2018, NASA’s Parker Solar Probe achieved its first perihelion — its first close approach to the Sun — and flew within 15 million...

The occasional use of stone tools as ‘strike-a-lights’ was a technocultural feature shared among Neanderthals in France.

250,000-Year-Old Neanderthal Teeth Reveal Evidence of Lead Poisoning

Nov 8, 2018 by News Staff

Two teeth from Neanderthal children who lived 250,000 years ago in what is today France contain evidence of repeated exposure to high levels of lead, a...

A rare triple-hybrid warbler. Image credit: Lowell Burket.

Rare Triple-Hybrid Warbler Spotted in Pennsylvania

Nov 8, 2018 by News Staff

A three-species hybrid warbler found in Pennsylvania is the offspring of a hybrid warbler mother and a warbler father from an entirely different genus...

This study reveals important fundamental differences between hot and cold brew coffee that may have implications for possible health impacts on drinkers. Image credit: Fxxu.

Study: Hot Brew Coffee Has More Antioxidants than Cold Brew

Nov 8, 2018 by Enrico de Lazaro

According to a new study published in the journal Scientific Reports, the hot brew method extracts more antioxidants from coffee than the cold brew method. This...

An electrode network and cyanobacteria were 3D printed on a mushroom to generate bio-electricity. Image credit: Joshi et al, doi: 10.1021/acs.nanolett.8b02642.

Bionic Mushrooms Covered in Cyanobacteria Produce Bio-Electricity

Nov 7, 2018 by News Staff

A team of researchers at the Stevens Institute of Technology has developed bionic mushrooms patterned with energy-producing cyanobacterial colonies and...

An African clawed frog (Xenopus laevis) swimming in a tank. Image credit: Celia Herrera-Rincon / Tufts University.

Wearable Drug Delivery Device Helps Frogs Regenerate Their Hindlimbs

Nov 7, 2018 by News Staff

A team of scientists from Tufts University and the University of Florida has found that delivering progesterone to an amputation injury site can induce...

The remains of the 4,500-year-old ramp were found at the site of Hatnub, Egypt. Image credit: Yannis Gourdon / French Institute for Oriental Archaeology / University of Liverpool.

Archaeologists Uncover 4,500-Year-Old Ramp System at Alabaster Quarry in Egypt

Nov 7, 2018 by News Staff

An international team of archaeologists from the French Institute for Oriental Archaeology in Cairo, Egypt, and the University of Liverpool, UK, has discovered...

An artist’s illustration of what the near-Earth asteroid Phaethon might look like up close. Image credit: Heather Roper.

Astronomers Puzzle Over Rare Blue Asteroid That Sometimes Behaves Like Comet

Nov 7, 2018 by News Staff

A large near-Earth asteroid called (3200) Phaethon is known to be blue in color and sometimes act like a comet. Using NASA’s Infrared Telescope Facility...

Drinking coffee may protect you against developing both Alzheimer’s and Parkinson’s diseases. Image credit: Couleur.

Coffee Consumption May Reduce Risk of Alzheimer’s and Parkinson’s Diseases

Nov 7, 2018 by News Staff

A new study, published in the journal Frontiers in Neuroscience, shows that a number of polyphenolic compounds found in brewed coffee can inhibit the aggregation...

Composite image of the galaxy cluster Abell 2597 showing the fountain-like flow of gas powered by the supermassive black hole in the central galaxy. The yellow is ALMA data of the cold gas. The red is data from ESO’s Very Large Telescope showing the hot hydrogen gas in the same region. The extend purple is the extended hot, ionized gas as imaged by NASA’s Chandra X-ray Observatory. Image credit: ALMA / ESO / NAOJ / NRAO / Tremblay et al / AUI / NSF / B. Saxton / NASA / Chandra / VLT.

Giant ‘Fountain’ of Cold Molecular Gas Offers Clues to How Galaxies Evolve

Nov 6, 2018 by News Staff

Astronomers using the Atacama Large Millimetre/submillimetre Array (ALMA) have observed a supermassive black hole acting like a ‘monumental fountain’...

Three waves can be seen in this image, which is an excerpt of a JunoCam image taken on February 2, 2017, during Juno’s fourth flyby of Jupiter. The region imaged in this picture is part of the visibly dark band just north of Jupiter’s equator known as the North Equatorial Belt. Most of this belt is characterized by downwelling motions, but during the fourth flyby it had several bright areas of upwelling clouds. One of those upwelling clouds appears to be accompanied by dark regions, which are most likely shadows. The shadow associated with the center of the three waves is about 25 miles (40 km) long; from the angle of illumination, researchers deduced that the shadowed part of the wave must be around 4 miles (7 km) above the main cloud deck, with the peak of the wave probably close to 6 miles (10 km) above the main cloud deck. Image credit: NASA / JPL-Caltech / SwRI / MSSS / JunoCam.

Juno Spots ‘Waves Trains’ in Jovian Atmosphere

Nov 6, 2018 by News Staff

NASA’s Juno orbiter has detected ‘wave trains’ — massive structures of moving air that appear like waves — in the atmosphere of Jupiter. Three...

This image shows the binary star system 2MASS J18082002-5104378. Image credit: Centre de Données astronomiques de Strasbourg / SIMBAD / DSS2.

One of Milky Way’s Oldest Stars Discovered

Nov 6, 2018 by News Staff

2MASS J18082002-5104378 B, an ultra metal-poor star located some 1,950 light-years away from Earth, is approximately 13.53 billion years old, making it...