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Universe May Be Riding on Expanding Bubble in Extra Dimension

Banerjee et al propose a new model with dark energy and our Universe riding on an expanding bubble in an extra dimension. Image credit: Suvendu Giri.
Dec 28, 2018 by News Staff

A team of theoretical physicists at Uppsala University, Sweden, has devised a new model for our Universe — one that may solve the mystery of dark energy, a factor that appears to be causing the Universe’s expansion. Banerjee et al propose a new model with dark energy and our Universe riding on an expanding bubble in an extra dimension. Image credit: Suvendu Giri. In the 1990s, astrophysicists found that our Universe is expanding at an increasing...

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The Himalayan marmot (Marmota himalayana). Image credit: Shauryankar Lingwal / CC BY-SA 4.0.

Scientists Sequence Genome of Himalayan Marmot

Dec 28, 2018 by News Staff

Researchers have for the first time mapped the genome of the Himalayan marmot (Marmota himalayana), a hibernating mammal that inhabits the high-elevation...

This image taken by ESO’s Very Large Telescope shows the binary system R Aquarii and the jets of material spewing from the stellar couple. Image credit: ESO / Schmid et al.

Astronomers Obtain Sharpest Ever Image of R Aquarii

Dec 27, 2018 by News Staff

Astronomers using the Spectro-Polarimetric High-contrast Exoplanet Research (SPHERE) instrument on ESO’s Very Large Telescope have captured dramatic...

Histochemical staining of Arabidopsis thaliana: (i) 7-day-old seedling primary root tip, (ii) rosette leaf, (iii) cauline leaf and (iv) inflorescence of Col-0 and prt6-1 lines expressing wild type VRN2-GUS. Scale bar in (i) - 500 μm. Image credit: Gibbs et al, doi: 10.1038/s41467-018-07875-7.

Biologists Unravel Memory Mechanism in Flowering Plants

Dec 27, 2018 by News Staff

A team of researchers from the United Kingdom and the Netherlands has identified a mechanism that enables angiosperms (flowering plants) to sense and remember...

Blyth et al analyzed the gamma rays emitted during the NPDGamma Experiment and found parity-violating asymmetry, which is a specific change in behavior in the force between a neutron and a proton. They measured a 30 parts per billion preference for gamma rays to be emitted antiparallel to the neutron spin when neutrons are captured by protons in liquid hydrogen. After observing that more gammas go down than up, the experiment resolved for the first time a mirror-asymmetric component or handedness of the weak force. Image credit: Andy Sproles / Oak Ridge National Laboratory, U.S. Department of Energy.

Experimental Physicists Measure Weak Force between Protons and Neutrons in Atom’s Nucleus

Dec 27, 2018 by News Staff

Physicists from the NPDGamma Experiment at the DoE’s Oak Ridge National Laboratory (ORNL) have measured the weak interaction between protons and neutrons...

Andesite blocks at Pumpapunku. Image credit: Brattarb / CC BY-SA 3.0.

Pumapunku: Researchers Reconstruct Enigmatic Pre-Columbian Monument

Dec 27, 2018 by News Staff

The Pumapunku (Gateway of the Puma or Jaguar), a highly damaged pre-Columbian monument at the ancient archaeological site of Tiwanaku, Bolivia, has been...

Genetically modified pothos ivy (Epipremnum aureum). Image credit: Mark Stone / University of Washington.

Genetically Modified Houseplant Can Clean Indoor Air

Dec 27, 2018 by News Staff

A team of scientists at the University of Washington has genetically modified a common houseplant, the pothos ivy (Epipremnum aureum), to efficiently remove...

An artist’s impression of the infant bow shock detected by ESA’s Rosetta spacecraft at Comet 67P/Churyumov-Gerasimenko. Image credit: ESA.

Rosetta Detects Signs of Infant ‘Bow Shock’ at Comet 67P/Churyumov-Gerasimenko

Dec 26, 2018 by News Staff

The ‘bow shock’ is the first boundary the solar wind encounters as it approaches planets or comets. From 2014 to 2016, ESA’s Rosetta orbiter studied...

Physarum polycephalum on an oak log. Image credit: Mushroom Observer / CC BY-SA 3.0.

Slime Mold Can Solve Exponentially Complicated Problems in Linear Time

Dec 26, 2018 by Sam Sander Effron

Researchers from Lanzhou University in China have shown that the slime mold Physarum polycephalum is able to solve the Traveling Salesman Problem, a combinatorial...

An artist’s depiction of loop quantum gravity effects in a black hole. The bottom half of the image depicts the black hole which, according to general relativity, traps everything including light. Loop quantum gravity overcomes this tremendous pull and liberates everything shown in the top half of image, thus solving the fundamental problem of black hole singularity. Image credit: A. Corichi & J.P. Ruiz.

Loop Quantum Gravity Theory Could Answer Fundamental Questions about Black Holes

Dec 26, 2018 by News Staff

Loop quantum gravity is a theory that uses quantum mechanics to extend gravitational physics beyond Einstein’s theory of general relativity. Previous...

Study: Children’s Personalities Influence How They Perform in Math and Reading

Dec 26, 2018 by News Staff

Proficiency in reading and math is associated with a complex system of skills, some of which derive from personality traits. In new research, Dr. Margherita...

An artist’s impression of New Horizons encountering Ultima Thule. Image credit: NASA / Johns Hopkins Applied Physics Laboratory / Southwest Research Institute / Alex Parker.

New Horizons Team Puzzled by Lack of Light Curve from Ultima Thule

Dec 25, 2018 by News Staff

Over the past three months, NASA’s New Horizons spacecraft has been taking images to measure the brightness of its next flyby target — a Kuiper...

This is a Nanjinganthus dendrostyla fossil, showing its ovary (bottom center), sepals and petals (on the sides) and a tree-shaped top. Image credit: Fu et al, doi: 10.7554/eLife.38827.

Plant Fossil from Early Jurassic Pushes Back Origin of Flowers

Dec 25, 2018 by News Staff

An international team of paleontologists has identified and described a new genus and species of extinct flowering plant (angiosperm), based on over 200...

This Hubble image shows RS Puppis, one of the most luminous in the class of Cepheid variable stars. Image credit: NASA / ESA / Hubble Heritage Team / STScI / AURA / H. Bond, STScI and Pennsylvania State University.

Hubble Observes Variable Star RS Puppis and Surrounding Nebula

Dec 25, 2018 by News Staff

NASA has released a striking photo taken by the NASA/ESA Hubble Space Telescope of RS Puppis, a Cepheid type variable star. The brightest star in the Hubble...

Bees can solve seemingly clever counting tasks with very small numbers of neurons in their brains. Image credit: PollyDot.

Bees Can Solve Counting Tasks with Just Four Neurons, New Study Shows

Dec 25, 2018 by News Staff

Bees can count up to four or five items, can choose the smaller or the larger number from a group and even choose ‘zero’ against other numbers when...

This Hubble image shows the globular cluster NGC 1466. Image credit: NASA / ESA / Hubble.

NGC 1466: Brilliant Globular Cluster Shines in New Hubble Photo

Dec 24, 2018 by News Staff

NASA has released a beautiful photo taken by the NASA/ESA Hubble Space Telescope of an ancient star cluster called NGC 1466. This Hubble image shows the...

The 51st known Mersenne prime has 24,862,048 digits. Image credit: Pete Linforth.

Largest Known Prime Number Has Almost 25 Million Digits

Dec 24, 2018 by News Staff

Professional and amateur mathematicians from a worldwide research project called the Great Internet Mersenne Prime Search (GIMPS) have discovered the largest...

These three radar images of near-Earth asteroid 2003 SD220 were obtained on December 15-17, 2018. Image credit: NASA / JPL-Caltech / GSSR / NSF / GBO.

Asteroid 2003 SD220 Makes Close Approach to Earth

Dec 24, 2018 by News Staff

Astronomers working with NASA’s Goldstone Deep Space Network, NSF’s Green Bank Telescope and Arecibo Observatory’s 1,000-foot (305-m) antenna have...

ALMA image of 46P/Wirtanen taken on December 2, 2018, as the comet approached Earth. The image shows the concentration and distribution of HCN molecules near the center of the comet’s coma. Image credit: ALMA / ESO / NAOJ / NRAO / M. Cordiner / NASA / CUA.

ALMA Takes Close Look at Comet 46P/Wirtanen

Dec 24, 2018 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) captured the radio image of 46P/Wirtanen on December 2, 2018, when the comet...

In Seattle, WA, delaying the start time of two high schools by 55 minutes lengthened students’ daily sleep by 34 minutes, and was associated with reduced sleepiness and increased academic performance. Image credit: E.B. Pilgrim.

Later School Start Times Increase Sleep, Attendance and Grades: Study

Dec 24, 2018 by News Staff

In 2017, the Seattle School District decided to delay the start time for secondary schools from 7:50 a.m. to 8:45 a.m. This change allowed a team of researchers...

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