Star clusters within the Milky Way come in two forms — open and globular. Now, some astronomers suspect they are related.
Apollo 11 Moon-walker Buzz Aldrin talks about the future of space flight.
Around each gas-giant planet orbit dozens of small moons born elsewhere. These far-ranging bodies are beginning to give scientists clues to the dark corners of the solar system.
A spiral masterpiece
Near the end of the Big Dipper’s handle lurks M101, a delightful celestial pinwheel.
Sail a hidden sea
Not all of the Moon’s “seas” are easily visible. Some lie beneath the lunar plains, covered by debris from later impacts.
Small eyes on the sky
You’ll be surprised by the great images you can create with a small telescope and webcam.
British amateur astronomer Sir Patrick Moore has inspired generations of people to look up.
The big easy
This large scope by StarStructure offers high-quality optics in a lightweight package.
This month in Astronomy
Bob Berman’s strange universe
Glenn Chaple’s observing basics
The sky this month