On January 23, 1950, Richard Dean Anderson was born. In sci-fi he is known for his role as Stargate SG-1's Jack O'Neill.
On January 24, 1986, the Voyager 2 spacecraft arrived at Uranus, giving us our first close-up views of the blue planet and its moons.
On January 25, 2004, the Opportunity Rover Lands on Mars.
On January 26, 1994, the first episode of Babylon 5 aired.
On January 27, 1942 James Cromwell was born. In sci-fi he is known for his role as Star Trek's Zefram Cochrane.