State of the Planet

News from the Columbia Climate School

meteorites

  • Was It an Alien Spacecraft—Or a Delivery Truck?

    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.

  • An Archive of the Stars Is Born

    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.

Colorful icons representing nature, sustainable living, and renewable energy with text "Earth Day 2026"

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.

  • Was It an Alien Spacecraft—Or a Delivery Truck?

    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.

  • An Archive of the Stars Is Born

    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.