Period spikes of methane on Mars could originate inside Gale crater, where NASA’s Curiosity rover is currently exploring.s
Earth and Space Science
Polar Vortex Linked to Atmospheric Circulation at Daily Scale
A simplified representation of polar vortex at monthly scale was revised using a new method, and its daily association with air-sea teleconnections was analyzed to study weather impacts.
Satellite Estimates for Hydroclimatic Extremes
A new study corrects poor-performing satellite-based rainfall estimates with gauge data and also fills gauge data gaps using well-performing satellite-based rainfall estimates.
GOLD Sees Quasi-Stationary Waves in the Nighttime Ionosphere
The wave-like features in the pre-midnight ionosphere are not moving, vary strongly from day-to-day, and are often associated with the equatorial plasma bubbles, but their origin is still unknown.
Global Warming Intensifies Turbulence Over Northern Eurasia
A significant increasing trend of turbulence in upper atmosphere over northern Eurasia is attributed to intense anthropogenic activities.
Using Machine Learning to Detect and Estimate Global Snowfall
Machine learning is used to retrieve global snowfall occurrence and rate from satellite-based passive microwave sounder observations, trained by snowfall data from a high-quality space borne radar.
A Precise Mosaic View of Mars’s South Pole
A new workflow improves the process of creating massive, accurate mosaics from spacecraft-captured images of a planet’s surface.
Zero-valent Iron in the Oxidizing Atmosphere?
A comparative study of urban, semi-urban, and rural sites reveals that the species of atmospheric iron varies depending on location.
Up Close with an Active Asteroid
A new journal special collection investigates the ejection of particles from the asteroid Bennu and the implications of these observations for asteroid science.
Insights from Calibration of the HP³ Radiometer on InSight
A detailed analysis of Heatflow and Physical Properties Package Radiometer on the Mars InSight lander, including changing instrument sensitivity and calibration coefficients.