High-temperature and high-pressure experiments involving a diamond anvil and chemicals to simulate the core of the young Earth demonstrate for the first time that hydrogen can bond strongly with iron in extreme conditions. This explains the presence of significant amounts of hydrogen in the Earth's core that arrived as water from bombardments billions of years ago.
A new auroral phenomenon discovered by Finnish researchers a year ago is probably caused by areas of increased oxygen atom density occurring in an atmospheric wave channel. The speculative explanation offered by the researchers gained support from a new study.
Astronomers have identified more than 4,000, and counting, confirmed exoplanets -- planets orbiting stars other than the sun -- but only a fraction have the potential to sustain life. Now, new research from UBC's Okanagan campus is using the geology of early planet formation to help identify those that may be capable of supporting life.
Scientists have recreated the reaction by which carbon isotopes made their way into different organic compounds, challenging the notion that organic compounds, such as amino acids, were formed by isotopically enriched substrates. Their discovery suggests that the building blocks of life in meteorites were derived from widely available substrates in the early solar system.
A team of researchers searched for pieces of an asteroid tracked in space and then observed to impact Botswana on June 2018. Guided by SETI Institute astronomer Peter Jenniskens, they found 23 meteorites deep inside the Central Kalahari Game Reserve and have published their findings in the journal Meteoritics and Planetary Science. "Combining observations of the small asteroid in space with information gleaned from the meteorites shows it likely came from Vesta," said Jenniskens.
UC Riverside engineers are developing methods to estimate the impact of California's destructive wildfires on air quality in neighborhoods affected by the smoke from these fires. Their research fills in the gaps in current methods by providing air quality information at the neighborhood scales required by public health officials to make health assessments and evacuation recommendations.
New mathematical framework predicts that star systems Kepler-34, -35, -38, -64 and -413 with circumbinary giant planets have stable Habitable Zones, potentially suitable for life
A new study conducted jointly by the ULiège Climatology Laboratory and the University of Reading (England) suggests that 34% of the Antarctic ice shelves could disappear by the end of the century if the planet warms up by 4°C compared with pre-industrial temperatures. This melting could lead to a significant rise in sea levels. This study is published in the journal Geophysical Research Letters.
A new study shows that thick sea-ice can increase the sensitivity of Greenlandic fjords to climate warming. Understanding the factors that control how fast glaciers move, break up and deposit chunks of ice (icebergs) into the fjords - and eventually the sea - is vital for predicting how the Greenland ice sheet will change under a warming climate and for predicting global rates of sea-level rise.
While attention has been focused on the Perseverance rover that landed on Mars last month, its predecessor Curiosity continues to explore the base of Mount Sharp on the red planet and is still making discoveries.