Are we living in a black hole?

Mathematical quirks of our universe have led some cosmologists to wonder whether the cosmos was actually born in a black hole ...

This rare green comet won’t return for a thousand years. Here’s how to see it this week.

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

5 specially-crafted images to celebrate World Space Week

National Geographic Explorer and night sky photographer Babak Tafreshi recently partnered with veteran NASA astronaut Don ...
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National Geographic picture atlas of our universe / by Roy A. Gallant ; prepared by National Geographic Book Service ; Margaret Sedeen, editor ; scientific consultants, Mark R ...

Text, photographs, paintings, and maps explore the history of astronomy, the solar system, and new space discoveries. https://siris-libraries.si.edu/ipac20/ipac.jsp ...