meteorites
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Was It an Alien Spacecraft—Or a Delivery Truck?
A Harvard astronomer says a meteor came from beyond our solar system. A new study questions whether his data includes a more obvious explanation.
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An Archive of the Stars Is Born
NASA has designated a group at Lamont-Doherty Earth Observatory with preserving and making easily accessible data from all the extraterrestrial material curated by the agency.

The first Earth Day in 1970 ignited a movement to stop polluting our planet. Today, our scientists and experts are tackling the most pressing challenges to achieve real-world impact. This Earth Day, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.
