Buying Guides
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Best Telescopes for Adults
Serious scopes for grown-up stargazers, from first purchase to upgrade.
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Space Coffee Table Books
Six big, beautiful space books to leave out for guests.
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Best Refractor Telescopes for Beginners
Low-maintenance scopes that are ready to use the night they arrive.
Free Resources
Space Printables
Free PDF quizzes and worksheets for kindergarten to adult, with answer keys.
3D Space Models
Spin real maps of the Moon and planets built from NASA data. Find craters, landing sites, the rings of Saturn, Uranus and Neptune and the moons of Jupiter.
Latest
When is the next solar and lunar eclipse, and can you see it from where you live? Live countdown, local times, path maps and the full eclipse calendar.
Updated October 2026 by Elena Stone See whether a meteor shower is active tonight where you live, how many meteors…
The November 2026 full moon peaks on Tuesday, November 24 at 14:53 UT. Times by US zone, best nights, the name’s origin and supermoon distance.
Every full moon in 2027 with exact times in Eastern and Pacific, traditional names, supermoon and eclipse notes and all 13 new moons.
Today’s moon phase and illumination, a live countdown to the next full moon, the 8 phases explained and a monthly moon calendar.
TLDR Rockets are sorted two ways: by what they burn and by what they do. By propellant, the main types…
TLDR Table of Contents West Virginia has fewer planetariums than you’d expect from a state with some of the darkest…
The Mars Exploration Rover mission sent two identical rovers, Spirit and Opportunity, to opposite sides of Mars in January 2004.…
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