26 August 2005, 07:11 AM ET
In the evening of Sept. 1, the two planets will pair-off in a striking conjunction low in the western evening twilight.
24 June 2005, 06:41 AM ET
Saturn, Venus and Mercury gather for an eyecatching sight.
07 June 2005, 07:00 AM ET
Most television science fiction shows fling humans out to the vast reaches of the galaxy, but "Voyage to the Planets and Beyond" is content with exploring our own planetary backyard.
13 May 2005, 06:23 AM ET
With each passing day, Venus has been moving on a slow course toward the east and pulling away from the Sun’s general vicinity. Now it's emerging as the evening star.
27 August 2004, 07:00 AM ET
With no planets in the evening sky, morning is where the action is, otherworld-wise. The nifty pairing of Venus and Saturn is worth a look.
26 August 2004, 07:00 AM ET
In an interview, David Grinspoon explains how Venus evolved from a wet planet similar to Earth to the scorching hot, dried-out furnace of today. Then he discusses the possibility that Venus was once an inhabited world.
02 August 2004, 07:14 AM ET
Sunlight drops when Mercury or Venus cross the face of the Sun and when sunspots cross the surface. Yet when there are few sunspots, sunlight also decreases.