The Fleet Science Center building will be closed on Monday and Tuesday, September 20-21, including Craveology and the North Star Science Store. The Heikoff Giant Dome Theater is currently closed for upgrades and will reopen on Friday, October 29.
   We’re Open Today
10:00am to 5:00pm

satellites

Mars To Encounter Comet Siding Spring

By Dr. Lisa Will
 
This Sunday, October 19, Mars will have a close encounter with Comet Siding Spring.
 
And by close, I mean close!
 
Comet Siding Spring, also known as C/2013 A1, will be approximately 82,000 miles away from Mars at its closest approach. That might not seem like much, but to give you a sense of scale that is equivalent to about one-third the distance between the Earth and the Moon!