For the entire Summer, Free Thursday hours are from 6 p.m. through 9 p.m. — there will be no free thursday on 6/21 and 8/16

GEMS Overnight

Now Sold Out!
Group Rates Corporations and Groups get discounted admission. Learn More
Book Your Party Give your child an unforgettable birthday party. Learn More
Become A Member Members get 10-20% Museum store, discounted admission + more. Learn More

Spend the night with your Girl Scout troop as part of our annual Girls Exploring Math and Science event! You’ll participate in a Museum-wide scavenger hunt, travel to the stars and beyond with a show in our world-class Burke Baker Planetarium, and settle down to sleep in a Museum exhibit.

Be the first ones to attend the GEMS event in the morning. Visit Community and Student STEM Ambassador booths to learn more about careers and projects in science, technology, engineering, and math.

The GEMS overnight is exclusively for Girl Scouts and their leaders. To be added to our notification list for more information about the GEMS overnight, email

Registration for the GEMS overnight program will open on November 13th at 9am. Please note that this event is first come, first served. Incomplete registration forms will not be processed, and we cannot hold spots for anyone. Additionally, once your registration is processed, refunds cannot be offered. Registration forms submitted before 9am on November 13th will not be processed. You can download the registration form here.

HMNS at Hermann Park

5555 Hermann Park Dr.
Houston,Texas 77030
(713) 639-4629

Get Directions Offering varies by location
HMNS at Sugar Land

13016 University Blvd.
Sugar Land, Texas 77479
(281) 313-2277

Get Directions Offering varies by location
George Observatory

21901 FM 762 Rd.
Needville, Texas 77461
(281) 242-3055

Tuesday - Saturday By Reservation
Saturdays 3:00PM - 10:00PM
Saturdays (DST) 3:00PM - 11:00PM
DST = Daylight Savings Time.
Please call for holiday hours. Entry to Brazos Bend State Park ends at 9:30 p.m. daily
Get Directions Offering varies by location

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