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Einstein’s general relativity theory is questioned but still stands for now

Black hole illustration (stock image). Credit: © Andrea Danti / Adobe Stock More than 100 years after Albert Einstein published his iconic theory of general relativity, it is beginning to fray at the edges, said Andrea Ghez, UCLA professor of physics and astronomy. Now, in the most comprehensive test of general relativity near the monstrous…

This protein is how creatures sense cold

Fox in snow (stock image). Credit: © rtaylorimages / Adobe Stock Researchers have identified a receptor protein that can detect when winter is coming. The findings, scheduled for publication Aug. 29 in the journal Cell, reveal the first known cold-sensing protein to respond to extreme cold. "Clearly, nerves in the skin can sense cold. But…

Reactor turns greenhouse gas into pure liquid fuel

Models of carbon dioxide molecules (stock image). Credit: © Ted Reinhard / Adobe Stock A common greenhouse gas could be repurposed in an efficient and environmentally friendly way with an electrolyzer that uses renewable electricity to produce pure liquid fuels. The catalytic reactor developed by the Rice University lab of chemical and biomolecular engineer Haotian…

How humans have shaped dogs’ brains

Puppies of various dog breeds (stock image). Credit: © Rawpixel.com / Adobe Stock Dog brain structure varies across breeds and is correlated with specific behaviors, according to new research published in JNeurosci. These findings show how, by selectively breeding for certain behaviors, humans have shaped the brains of their best friends. Over several hundred years,…

New artifacts suggest people arrived in North America earlier than previously thought

Salmon River, Idaho (stock image). Credit: © davidmarx / Adobe Stock Stone tools and other artifacts unearthed from an archeological dig at the Cooper's Ferry site in western Idaho suggest that people lived in the area 16,000 years ago, more than a thousand years earlier than scientists previously thought. The artifacts would be considered among…

Poor diet can lead to blindness, case study shows

French fries (stock image). Credit: © Pixelbliss / Adobe Stock An extreme case of "fussy" or "picky" eating caused a young patient's blindness, according to a new case report published today in Annals of Internal Medicine. The University of Bristol researchers who examined the case recommend clinicians consider nutritional optic neuropathy in any patients with…

Confirmation of toasty TESS planet leads to surprising find of promising world

This diagram shows the layout of the GJ 357 system. Planet d orbits within the star’s so-called habitable zone, the orbital region where liquid water can exist on a rocky planet’s surface. If it has a dense atmosphere, which will take future studies to determine, GJ 357 d could be warm enough to permit the…

Dead planets can ‘broadcast’ for up to a billion years

Planetary nebula with white dwarf illustration (stock image). Credit: © Peter Jurik / Adobe Stock Astronomers are planning to hunt for cores of exoplanets around white dwarf stars by 'tuning in' to the radio waves that they emit. In new research led by the University of Warwick, scientists have determined the best candidate white dwarfs…

Hubble uncovers a ‘heavy metal’ exoplanet shaped like a football

This artist's illustration shows an alien world that is losing magnesium and iron gas from its atmosphere. The observations represent the first time that so-called "heavy metals"—elements more massive than hydrogen and helium—have been detected escaping from a hot Jupiter, a large gaseous exoplanet orbiting very close to its star.The planet, known as WASP-121b, orbits…

Guacamole lovers, rejoice! The avocado genome has been sequenced

Avocados (stock image). Credit: © nata_vkusidey / Adobe Stock Scientists have sequenced the avocado genome, shedding light on the ancient origins of this buttery fruit and laying the groundwork for future improvements to farming. With regard to modern affairs, the study reveals for the first time that the popular Hass avocado inherited about 61 percent…

Eating more plant-based foods may be linked to better heart health

Shopping bag full of fresh vegetables and fruits (stock image). Credit: © Alexander Raths / Adobe Stock Eating mostly plant-based foods and fewer animal-based foods may be linked to better heart health and a lower risk of dying from a heart attack, stroke or other cardiovascular disease according to new research published in the Journal…

Dark matter may be older than the Big Bang

Big Bang illustration (stock image). Credit: © Andrea Danti / Adobe Stock Dark matter, which researchers believe make up about 80% of the universe's mass, is one of the most elusive mysteries in modern physics. What exactly it is and how it came to be is a mystery, but a new Johns Hopkins University study…

A long time ago, galaxies far, far away

ALMA radio telescope antennas (stock image). Credit: © Christian / Adobe Stock Astronomers used the combined power of multiple astronomical observatories around the world and in space to discover a treasure-trove of previously unknown ancient massive galaxies. This is the first multiple discovery of its kind and such an abundance of this type of galaxy…

Hubble’s new portrait of Jupiter

New Hubble Space Telescope view of Jupiter, taken on June 27, 2019. Credit: NASA, ESA, A. Simon (Goddard Space Flight Center) and M.H. Wong (University of California, Berkeley) A new Hubble Space Telescope view of Jupiter, taken on June 27, 2019, reveals the giant planet's trademark Great Red Spot, and a more intense color palette…

Eating more plant-based foods may be linked to better heart health

Shopping bag full of fresh vegetables and fruits (stock image). Credit: © Alexander Raths / Adobe Stock Eating mostly plant-based foods and fewer animal-based foods may be linked to better heart health and a lower risk of dying from a heart attack, stroke or other cardiovascular disease according to new research published in the Journal…

Glitch in neutron star reveals its hidden secrets

Neutron star illustration (stock image). Credit: © dani3315 / Adobe Stock Neutron stars are not only the most dense objects in the Universe, but they rotate very fast and regularly. Until they don't. Occasionally these neutron stars start to spin faster, caused by portions of the inside of the star moving outwards. It's called a…

Mars: Cause of methane spikes still unknown

Mars illustration (stock image). Credit: © Michael Rosskothen / Adobe Stock Wind erosion has been ruled out as the primary cause of methane gas release on Mars, Newcastle University academics have shown. Methane can be produced over time through both geological and biological routes and since its first detection in the Martian atmosphere in 2003,…

These sharks use unique molecules to glow green

Chain catshark, Scyliorhinus retifer (stock image). Credit: © dottedyeti / Adobe Stock In the depths of the sea, certain shark species transform the ocean's blue light into a bright green color that only other sharks can see -- but how they biofluoresce has previously been unclear. In a study publishing August 8 in the journal…

Virtual ‘universe machine’ sheds light on galaxy evolution

Galaxy illustration (stock image). Credit: © Peter Jurik / Adobe Stock How do galaxies such as our Milky Way come into existence? How do they grow and change over time? The science behind galaxy formation has remained a puzzle for decades, but a University of Arizona-led team of scientists is one step closer to finding…

A new timeline of Earth’s cataclysmic past

Asteroid impact illustration (stock image). Credit: © Andrea Danti / Adobe Stock Welcome to the early solar system. Just after the planets formed more than 4.5 billion years ago, our cosmic neighborhood was a chaotic place. Waves of comets, asteroids and even proto-planets streamed toward the inner solar system, with some crashing into Earth on…

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