A 3,300-foot- (1 km) wide asteroid struck our planet 1.2 billion years ago, according to new research published in the Journal of the Geological Society.
An...
The modern mineral classification system, developed by the American geologist and mineralogist James Dwight Dana in the 1850s, categorizes more than 5,400...
NASA’s Stratospheric Observatory for Infrared Astronomy (SOFIA) observed the hyperactive Jupiter-family comet 46P/Wirtanen as it made its closest approach...
Between 8 and 2 million years ago, cosmic-ray energy from one or more nearby supernovae reached Earth and pummeled the planet’s atmosphere, initiating...
A team of researchers from Princeton University and Universities of Miami and Chicago has found drops of ancient seawater in the sediment cores from the...
Some deep-sea fishes have developed highly sensitive color vision that could help them determine predator from prey in the dimly-lit depths.
The lanternfish...
A team of marine biologists from the University of Washington has found communities of arsenic-breathing microbes in the oxygen-deficient zones of the...
A duo of researchers from the School of Earth and Space Exploration at Arizona State University has made the first-ever measurements of ancient water contained...
STEVE (Strong Thermal Emission Velocity Enhancement) is a thin ribbon of pinkish-red or mauve-colored light stretching from east to west, farther south...
Marine biologists on the Tara Oceans global oceanographic research expedition have identified nearly 196,000 marine virus species, which vastly exceeds...
A meteor seen over the South Pacific, off the northern coast of Papua New Guinea, in 2014 likely came from interstellar space, according to new research...
An international team of paleontologists from China and the United States has found high levels of mercury in the end-Permian marine sediments at nearly...
From the ground, the dance of the northern lights, or aurora borealis, can look peaceful. But those shimmering sheets of colored lights are the product...
ALH-77005, a Martian rock found in Antarctica, contains numerous mineralized ‘biosignatures,’ including coccoidal, filamentous structures and organic...
A new theory on the thermal evolution of Earth explains why the planet’s upper mantle was cool enough to produce diamonds in the Archean Eon between...
A team of planetary scientists at the Australian National University found that our planet is made of the same elements as the Sun but has less of the...
An international team of neuroscientists and geoscientists from Caltech, the University of Tokyo, Princeton University and Tokyo Institute of Technology...
Evidence of an enormous solar storm that struck the Earth around 2,610 years ago has been found in ice cores from Greenland.
An artist’s illustration...
Pure ice is blue because ice absorbs more red light than blue light. Most icebergs appear white or blue when floating in seawater, but since the early...
![Backscattered electron images of experimental charges. Locations of images (A) to (D) from sediment-peridotite reaction experiments are schematically shown in capsule on the left. (A, C, and D) - reaction experiments at 5 GPa/1000 degrees Celsius with superimposed energy-dispersive x-ray maps of chlorine [green in (C) and (D)]. The sediment half of two-layer experiments recrystallized to garnet and clinopyroxene (Cpx), whereas orthopyroxene (Opx), magnesite (Mgs), and Na-K chlorides formed at the leading edge of the reaction zone against the peridotite. (B) - peridotite layer in the reaction experiment at 3 GPa/900 degrees Celsius contained phlogopite (Phl) behind the magnesite plus orthopyroxene zone, and Na-K chlorides were absent. (E and F) - sediment melting experiment (no peridotite included) at 4 GPa/1000 degrees Celsius showing silicate melt (E) in equilibrium with garnet (Gt), coesite (Coe), and Mg calcite (Mg-Cc) shown in (F). Scale bars - 100 μm (A and B) and 20 μm (C to F). Image credit: Förster et al, doi: 10.1126/sciadv.aau2620.](https://cdn.sci.news/images/2019/05/image_7241-Diamond-Salts-195x110.jpg)
