Billions of years ago, iron-oxidizing microbes may have competed for dissolved iron in the ocean, with some strains producing toxic gases that smothered their rivals.
Earth science
Posted inNews
Glaciers near Active Volcanoes Flow Faster
Monitoring glacier velocity could help predict volcanic activity, a study of more than 210,000 glaciers suggests.
Posted inNews
Smithsonian Exhibit Connects Sky-High Views with Down-Home Impacts
“Preserve and cherish the pale blue dot, the only home we’ve ever known.”
Posted inNews
Centennial-Scale Jumps in CO2 Driven by Earth’s Tilt
Antarctic ice records uncovered seven previously unknown jumps in atmospheric carbon dioxide. These events may have been driven by changes in Earth’s tilt.
Posted inEditors' Highlights
Improvements to Measuring the Ups and Downs of the Landscape
If you are a jazz fan, you may be familiar with Ella Fitzgerald singing ‘How deep is the ocean, how high is the sky’. Using data from the Shuttle Radar Topography Mission we now know how high the land really is.
Posted inResearch Spotlights
A New View of Deep Earth’s Carbon Emissions
Advances in plate tectonics research allow a deeper understanding of how greenhouse gases escape from within the planet.
Posted inFeatures
O Legado Rico em Nutrientes nas Terras Pretas da Amazônia
Os solos férteis de terra preta foram criados através de séculos de uso da terra cuidadosamente administrado. Os cientistas estão colhendo referências desses solos para remover o carbono e melhorar o solo para a agricultura.
Posted inNews
Weather Extremes Influence Human Migration Between Mexico and the United States
Undocumented immigrants from agricultural areas in Mexico are most vulnerable to drought and seasonal weather patterns.
Posted inNews
Earth May Survive the Sun’s Demise
A distant white dwarf hosts an Earth-like planet in an orbit that might be similar to Earth’s if it survives the Sun’s red giant phase.
Posted inNews
Next NASA Field Campaign Could Fund Projects in Drylands or Tropics
Scientific feedback can improve proposals and signal support for large-scale, intensive climate research.