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Sale Price $16.24.
Original Price $20.30 Comp. value
per shirt
You save 20%
Cosmic Calendar Men's T-Shirt
Qty:
Style
Basic Dark T-Shirt
-$1.15
+$8.40
Color & Print Process
Black
Vivid Printing: White Underbase
About T-Shirts
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About This Design
Cosmic Calendar Men's T-Shirt
The 13.8 billion year history of the universe is scaled down to a single year, so that each second lasts 438 years. The Cosmic Calendar was popularized by Carl Sagan to put history into a scale people can intuitively grasp.
Personalize the title with your scientific world view or a joke, your choice. See cosmiccalendar.net for more choices or to get in touch. Thanks for supporting my obsessive Wikipedia editing!
Customer Reviews
4.7 out of 5 stars rating31.5K Total Reviews
31,523 Reviews
Reviews for similar products
5 out of 5 stars rating
By Jenny S.September 9, 2025 • Verified Purchase
Value T-Shirt, Black, Adult S
My 11 yo wore adult XL (5’7” 165#). The 8yo is small framed. She wore adult small and tied it in the back. Dark haired male wore adult large and 5’9”, 110# female wore adult medium . Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt. Not too thick or thin. Washed and dried well, no major shrinkage. Not see-through. Can wear a bra under it fine. Screen print is just as shown and well done, front and back.
5 out of 5 stars rating
By Jenny S.September 9, 2025 • Verified Purchase
Value T-Shirt, Black, Adult S
My 11 yo wore adult XL (5’7” 165#). The 8yo is small framed. She wore adult small and tied it in the back. Grandma wore adult large with long sleeve shirt underneath. Tall girl adult medium. Dark haired male adult large. Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt. Not too thick or thin. Washed and dried well, no major shrinkage. Not see-through. Can wear a bra under it fine. Screen print is just as shown and well done, front and back.
5 out of 5 stars rating
By Jenny S.September 9, 2025 • Verified Purchase
Value T-Shirt, Black, Adult S
My 11 yo wore adult XL (5’7” 165#). The 8yo is small framed. She wore adult small and tied it in the back. Dark haired male wearing adult large and female wearing adult medium. Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt. Not too thick or thin. Washed and dried well, no major shrinkage. Not see-through. Can wear a bra under it fine. Screen print is just as shown and well done, front and back. They printed random cupcake image I downloaded from internet with no problems! Looked perfect! Front design was stock from zazzel.
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Other Info
Product ID: 235848470652482649
Created on: 10/8/2021, 9:17 AM
Rating: G
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