What is time? Why is it so different from space? And where did it come from? Scientists are still stumped by these questions — but working harder than ever to answer them.
Astronomy‘s intrepid travelers journeyed to Antarctica to witness one of nature’s grandest spectacles.
The Enterprise has visited many star systems on its voyages. Here’s how to see some of them for yourself.
These free websites are all you need to unlock the mysteries hidden within any deep-sky image.
These cosmic rocks are like fossils from the early solar system.
How can a photon of light carry energy but also be considered massless?
Sky this Month
StarDome and Path of the Planets
In Every Issue