In 1994 fragments of Shoemaker-Levy 9 struck this planet, creating a plume over 1,000 miles high
The solar observatory at Kitt Peak in this Southwestern state focuses on spectroscopy
According to one of this German's laws of motion, planets travel faster when they are closer to the sun
All the stars you can see with the naked eye are part of this galaxy
A camera orbiting this planet in March 1999 snapped a crater that resembles a "happy face"
In an emergency repair mission scheduled for October 1999 NASA will replace all of the gyros in this telescope
In 1967 what were called "Schwarzschild Singularities" were renamed this
Its "A" ring is a little over 9,000 miles wide
Its perigee, the closest it can come to Earth, is 221,456 miles
The lowest point on this heavenly body is the Diana Chasma, a rift valley