2006 – The Mars Reconnaissance Orbiter arrives at Mars.

1999 – Comet C/1998 M5 (LINEAR) Closest Approach To Earth (1.534 AU)
1986 – Sakigake, Comet Halley Flyby – Japan.
1977 – Uranus‘s rings were discovered by astronomers James L. Elliot, Edward W. Dunham, and Jessica Mink using a NASA Kuiper Airborne Observatory, during a stellar occultation,when Uranus passed in front of a star.
Birthdays

1961 – Born in Ames, Iowa, Laurel Clark was an American medical doctor, United States Navy Captain, NASA astronaut and Space Shuttle mission specialist. Clark died along with her six fellow crew members in the Space Shuttle Columbia disaster on February 1, 2003.