Why are Charon's poles dusted with reddish material?
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Adam M. Dziewonski (1936–2016)
Adam Dziewonski, a towering figure in solid Earth geophysics and a pioneer of global seismic tomography, passed away on 1 March 2016. He was 79.
Remote Sensing Regulations Come Under Congressional Scrutiny
Republicans accused the administration of dragging its feet on recommending policy revisions. A federal advisory committee has a November deadline to provide recommendations.
A Flip-Flopping Climate Could Explain Mars's Watery Past
A new hypothesis might reconcile two opposing theories that have tried to explain Mars's mysterious history for more than 40 years.
Atmospheric Chemists Should Tackle Risks to Society, Report Says
Protecting public health and the health of the climate and ecosystems warrants more focus from this scientific field, according to the report.
John A. Knauss (1925–2015)
Knauss, an oceanographer who fiercely advocated for national and global marine initiatives, helped to develop many iconic programs and institutions that are key parts of oceanography today.
Scientists Get First Glimpse of Solar Wind as It Forms
Using computer-processed images from Sun-watching satellites, scientists observed solar wind emerging from the Sun's corona.
New Digital Maps Depict Alaska in Unprecedented Detail
The Obama administration plans to release high-resolution terrain models in 2017 for the entire Arctic.
Delayed Launch Approved for Next Mars Mission
NASA has set a new 2018 launch date for a spacecraft to probe the Red Planet's interior, after instrument failure hobbled preparations for the mission.
New Findings Suggest Dwarf Planet Ceres Is Geologically Active
Cryovolcanoes, landslides, and water ice all point to current activity, researchers found.
