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Bromine and Chlorine Go Separate Ways

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This graph shows the relative concentrations of bromine and chlorine at various locations on Earth and Mars. Typically, bromine and…

Apr 1, 2004

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History Leaves Salts Behind

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These plots, or spectra, show that a rock dubbed 'McKittrick' near NASA's Mars Exploration Rover Opportunity's landing site at Meridiani…

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Cosmic Origins at AAS 247 (Jan 2026)

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Hi-ReX SAG Kickoff Meeting 17 Dec 2025

The tip of the 'wing' of the Small Magellanic Cloud galaxy is dazzling in this new view from NASA's Great Observatories. The SMC, is a small galaxy about 200,000 light-years way that orbits our own Milky Way spiral galaxy.

CMB SAG Meeting December 12, 2025

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