Our own Sun—a source of awe, myth, and mystery for untold generations of sky-gazers—is just one of roughly two hundred billion trillion stars. Together, they’re a window into the profoundest questions in physics—overturning, again and again, how we understand light, matter, time, … Continue reading →

Sturdy and convenient 10” x 6.75” reference card Front: Lunar calendar with realistic moon images Back: Dates and times of every phase change, eclipse, apogee, and perigee 5 copies you can keep or share This is the 42nd edition of … Continue reading →

This is the forty-third edition of Kim Long’s classic Moon Calendar, the first of its kind and a fan favorite since 1982. With a graphic, at-a-glance 2025 lunar calendar on the front and easy-to-read, detailed data provided by the US … Continue reading →

This is the forty-third edition of Kim Long’s classic Moon Calendar, the first of its kind and a fan favorite since 1982. With a graphic, at-a-glance 2025 lunar calendar on the front and easy-to-read, detailed data provided by the US … Continue reading →

This is the 44th edition of Kim Long’s classic Moon Calendar, the first of its kind and a fan favorite since 1982. With a graphic, at-a-glance 2026 lunar calendar on the front and easy-to-read, detailed data provided by the US … Continue reading →

This is the 44th edition of Kim Long’s classic Moon Calendar, the first of its kind and a fan favorite since 1982. With a graphic, at-a-glance 2026 lunar calendar on the front and easy-to-read, detailed data provided by the US … Continue reading →

Two hundred days orbiting Earth on the International Space Station. Five years working and training with the aerospace community across the world. A lifetime of choices leading to the stars. These are the components of Samantha Cristoforetti’s dream, a dream … Continue reading →

Within the pages of this eclectic pop-history, scientist and educator Sten Odenwald at NASA examines 100 objects that forever altered what we know and how we think about the cosmos. From Sputnik to Skylab and Galileo’s telescope to the Curiosity … Continue reading →

For millennia, we have looked up at the stars and wondered whether we are alone in the universe, but in the last few years—as our probes begin to escape the solar system, and our telescopes reveal thousands of Earthlike planets—scientists … Continue reading →

Quick: Picture the solar system. Do you see nine planets on tidy rings around the Sun? Then you have been lied to! It’s not without reason: We have to draw the solar system that way to fit it on a … Continue reading →

In this thrilling history, David Baker captures the longest-possible time span—from the Big Bang to the present day—in an astonishingly concise retelling. His impressive timeline includes the “rise of complexity” in the cosmos and the creation of the first atoms; … Continue reading →

With roughly 100 billion stars in the Milky Way alone, the cosmos is simply too vast for an unabridged tell-all. But here’s the next best thing: 100 stars—bright and faint, near and far, famous and obscure, long dead and as-yet … Continue reading →