How we’ll return to the Moon
Four decades after the first human landing, we stand on the threshold of a second grand adventure.
NASA has developed detailed plans for sending humans back to our nearest celestial neighbor.
Next step Mars?
Landing humans on the Red Planet is harder and more dangerous than you might think, but it can be done. Here’s how.
The effects of long-term exposure to space radiation and low gravity are still uncertain.
The return to the Moon could be a useful steppingstone to Mars – or a costly and unnecessary delay.
What Europe’s Moon mission revealed
Lead Project Scientist Bernard H. Foing explains how SMART-1 served as a steppingstone for future solar system exploration.
Asia’s new assault on the Moon
First-ever lunar missions from Japan and China returned valuable data and laid the foundation for more ambitious exploration.
To get more bang for our buck, the space agency launches two missions at once.
Who was the real Charles Messier?
His catalog of deep-sky objects may be world famous, but most people don’t know much about the man behind it.
With the help of the SkyQuest XX12 reflector, finding faint deep-sky treats just got easier.
This Month in Astronomy
Bob Berman’s Strange Universe
Glenn Chaple’s Observing Basics
The Sky this Month
David H. Levy’s Evening Stars
Stephen James O’Meara’s Secret Sky
The Cosmic Grid