Crossroads Astronomy, Science and Technology Expo

See our winter special below, “The Big Chill”, booth space at a lower rate!

Be part of history at the heart of the eclipse crossroads of America by reserving your vendor area at the Crossroads Astronomy, Science and Technology Expo. The expo will be held the weekend and day of the Eclipse in the Banterra Center. Millions across the US are expected to travel to the path of totality to see the eclipse. The expo will highlight organizations and businesses that specialize in solar, astronomy, science, and new technology. This expo is a unique opportunity to showcase your products and services to thousands of people who will be on the SIU campus the weekend before, and the day of, the eclipse.

Expo Details

Expo Date/Time:
Sunday, April 7, 2024,
9am – 5pm
Monday, April 8, 2024,
9am – 5pm
Banterra Center
1400 Arena Dr., Carbondale, IL 62901
No Tickets Required

2024 Vendors

Adler Planetarium
Dome Home
Evertree Optics
PEASE Labs – SIU School of Forestry and Horticulture
Saluki Science Ambassadors
School of Physics and Applied Physics
SIU School of Forestry and Horticulture
Social Cognitive Development Lab – SIU Psychology Department
STEM Ambassadors
STEM Education Center
The Illinois Broadband Lab
The Science Center


  • Booths are 10’x10’ and include 1 table, 2 chairs, pipe and drape.
  • The Business or organization must fall into one of these categories:
    • Professional Science and Astronomical Society
    • Outreach Organization
    • University / College / Research Institute
    • Government Agency / Federal Laboratory
    • Outreach Professional
  • Booth must be staffed at all times.
  • One entity per booth.
  • Failure to follow these guidelines will cause forfeiture of privileges to participate in the expo.


Big Chill reduced rates available through March 15!



Standard Fee: $2000

Information Booth


Standard Fee: $1000

Small Business Booth


Standard Fee: $500

Electric, parking and extra booth space options, available when registering.

A $150 fee will be applied should you cancel after registration.

Discounted rates are negotiable in exchange for assistance with visitor outreach and volunteering. Please email for more information.

Load In/Out

Vendor Load-in:
Saturday, April 6, 7am – 10:30am
Vendor Load-out:
Monday, April 8, 5 – 8pm

Register Now!

To register by phone with a VISA, Discover, or MasterCard call Conference and Scheduling Services at 618-536-7751.

Please email or call 618-536-7751 for any questions.

View CASTE Vendor BrochureOnline Vendor Registration

SIU Involvement

We welcome campus involvement for CASTE. Simply fill out our campus involvement form to communicate the activity and/or tabling you will be providing as a part of this event.