Is time on our side?
Time travel — long a staple of science fiction — may not be too far from reality.
Famous for discovering Pluto, Clyde Tombaugh reached far beyond the planets.
Acidic clouds and a surface hot enough to melt lead make Venus unique among planets. Scientists want to know how it got that way.
With plans for new spaceships and launch vehicles, NASA foresees a permanent presence on the Moon.
How to observe cosmic bubbles
Massive, energetic stars carve out voids in space and produce some spectacular targets.
Catch Mercury at its best
Now is the time to find the most elusive terrestrial planet.
Pieces of time
Today’s watchmakers produce sophisticated pieces that unite astronomy and art.
A 12-inch powerhouse
High-grade optics, excellent tracking, and unexpected features highlight Meade’s RCX line of telescopes.
This month in Astronomy
Bob Berman’s strange universe
Phil Harrington’s binocular universe
Meet the hunter
The sky this month