Experiments trace interstellar dust back to solar system's formation

sciencedaily.com – Experiments have helped to confirm that samples of interplanetary particles -- collected from Earth's upper atmosphere and believed to originate from comets -- contain dust leftover from the initial formation of the solar system.

Source: Hope A. Ishii, et al. Multiple generations of grain aggregation in different environments preceded solar system body formation. Proceedings of the National Academy of Sciences, 2018.

Herpes may play a role in developing Alzheimer's, a new study suggests — reigniting a controversial theory about what causes the disease

businessinsider.com – One controversial theory for Alzheimer's disease is that it is caused by a virus, or multiple viruses, infecting the brain. A new study rekindles that theory, after finding brains of Alzheimer's patients had higher levels of the herpes virus.

Source: Ben Readhead, et al. Multiscale Analysis of Independent Alzheimer’s Cohorts Finds Disruption of Molecular, Genetic, and Clinical Networks by Human Herpesvirus. Neuron, 2018.

Large Methane Leaks Threaten Perception Of 'Clean' Natural Gas

npr.org – A new study finds that oil and gas operations are leaking 60 percent more methane than previously reported by the federal government.

Source: Ramón A. Alvarez, et al. Assessment of methane emissions from the U.S. oil and gas supply chain. Science, 2018.

Tongue-tied: T rex couldn't stick out its tongue

theguardian.com – Researchers say many dinosaurs’ tongues were anchored to the floors of their mouths and unable to waggle

Source: Zhiheng Li, Zhonghe Zhou, Julia A. Clarke, Matt Friedman. Convergent evolution of a mobile bony tongue in flighted dinosaurs and pterosaurs. PLOS ONE, 2018.

Einstein's Greatest Theory Validated on a Galactic Scale

sciam.com – Astronomers have used a pair of galaxies far beyond the Milky Way to test general relativity with unprecedented precision

Source: Thomas E. Collett, et al. A precise extragalactic test of General Relativity. Science, 2018.

New electronic skin allows bionic limbs to feel pain — and that’s a good thing

digitaltrends.com – Bionic prostheses have evolved by leaps and bounds. One thing that most of them can't do, however, is let their wearers feel pain. That's changing thanks to researchers at Johns Hopkins University -- and, despite what you might think, that could turn out to be a positive step forward.

Source: Luke E. Osborn, et al. Prosthesis with neuromorphic multilayered e-dermis perceives touch and pain. Science Robotics, 2018.

Analysis of a Million-Plus Genomes Points to Blurring Lines among Brain Disorders

sciam.com – Schizophrenia shares some genetic variants with several psychiatric conditions—and similar overlaps are seen for personality traits and migraines in a massive study

Source: Verneri Anttila, et al. Analysis of shared heritability in common disorders of the brain. Science, 2018.

Ötzi the Iceman spent his last days trying to repair his tools

arstechnica.com – Study of a Copper Age man's stone tools reveals details of his life and work.

Source: Ursula Wierer, et al. The Iceman’s lithic toolkit: Raw material, technology, typology and use. PLOS ONE, 2018.

Mammals adopt nightlife to avoid contact with humans, study finds

cbc.ca – A new study has found animals around the world have dramatically increased their activity at night so they don't have to worry about running into us humans.

Source: Kaitlyn M. Gaynor, Cheryl E. Hojnowski, Neil H. Carter, Justin S. Brashares. The influence of human disturbance on wildlife nocturnality. Science, 2018.

Huge wave in Venus’ clouds changes the length of a day

arstechnica.com – When we measure Venus’ rotation, we keep getting different answers.

Source: T. Navarro, G. Schubert, S. Lebonnois. Atmospheric mountain wave generation on Venus and its influence on the solid planet’s rotation rate. Nature Geoscience, 2018.