Explore Our September Issue: Lifting the Venus Curse

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Explore Our September Issue

Lifting the Venus Curse Three new space missions are set to reinvigorate studies of Earth's long-neglected neighbor, potentially revealing how and why it became our planet's evil twin.

Special Report on Autoimmune Disease: The Body Against Itself Millions suffer when the immune system, which normally defends people, attacks them instead.

Methane Hunters Emerging technology can pinpoint methane emissions, but will oil and gas companies and their regulators respond?

The Lions of Los Angeles The Santa Monica mountain lions are so inbred that they are starting to show genetic defects. An ambitious plan to build the largest wildlife crossing in the world could save them.

Scientific American September Issue

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