Meteor Crater, Arizona. This crater is the result of an impact of a 50m meteor, whereas the impacts described in the current work may have been hundreds of times bigger. Credit: Dr. Dale Nations, AZGS Scientists know that the Earth was bombarded by huge impactors in distant time, but a […]

June 16, 2021 Noctilucent clouds form so high in the atmosphere that they continue to reflect sunlight hours after sunset, creating a spectacular nighttime display. Clouds illuminated during the daytime by the Sun or at nighttime by the Moon are a common sight. It is rarer, however, to see clouds […]

CLICK HERE TO ANIMATE: Comparison of overlapping one-year estimates at 6-month intervals of net top-of-the-atmosphere annual energy flux from CERES (solid orange line) and an in situ observational estimate of uptake of energy by Earth climate system (solid turquoise line). Credit: NASA/Tim Marvel Researchers have found that Earth’s energy imbalance […]

An artist’s impression shows an exoplanet orbiting the Sun-like star. Credit: ESO/M. Kornmesser An international group of collaborators, including scientists from NASA’s Jet Propulsion Laboratory and The University of New Mexico, have discovered a new, temperate sub-Neptune sized exoplanet with a 24-day orbital period orbiting a nearby M dwarf star. […]

Noctilucent or “night shining” clouds forming in the mesosphere as seen from the International Space Station on May 29, 2016. These clouds form between 47 to 53 miles (76 to 85 kilometers) above Earth’s surface, near the boundary of the mesosphere and thermosphere, a region known as the mesopause. SOFIA […]

The relationships among CAW, heatwaves, wildfires, and pollution. Anomalous anticyclones characterize the atmospheric circulation that develops concomitantly over the three remote regions around the summertime Arctic (July and August). The authors named it the circum-Arctic wave (CAW) pattern. These anticyclones induce warm and dry conditions from the surface to the […]

New research by LLNL scientists shows that satellite measurements of the temperature of the troposphere (the lowest region of the atmosphere) may have underestimated global warming over the last 40 years. One of the physical processes they looked at was tropical water vapor like shown in this NASA image. Credit: […]

NASA’s new Earth System Observatory will guide efforts related to climate change, disaster mitigation, fighting forest fires, and improving real-time agricultural processes – including helping to better understand Category 4 to 5 hurricanes such as Hurricane Maria, shown here in a 2017 thermal image captured by NASA’s Terra satellite. Credit: […]

Nitrogen-bearing, Earth-like planets can be formed if their feedstock material grows quickly to around moon- and Mars-sized planetary embryos before separating into core-mantle-crust-atmosphere, according to Rice University scientists. If metal-silicate differentiation is faster than the growth of planetary embryo-sized bodies, then solid reservoirs fail to retain much nitrogen and planets […]

The Finnish Meteorological Institute’s observation station used in the study, Pallas National Park, Arctic Finland. Credit: Jeff Welker The April snow falling on fruit blossoms in Europe these days may be directly connected to the loss of the sea ice in the Barents Sea in the Arctic. That was certainly […]