Tap / click on image to see more RealViewsTM
$15.00
$2.50 per coaster
Milky Way Galaxy Veil Over WMAP Universe Square Paper Coaster
Qty:
Shape
Square
+$0.05
+$0.05
+$0.05
+$0.05
+$0.05
+$0.05
+$0.05
+$0.05
About Paper Coasters
Sold by 
About This Design
Milky Way Galaxy Veil Over WMAP Universe Square Paper Coaster
The Milky Way's Veil: Understanding the WMAP Image with Galactic Foreground
The Cosmic Microwave Background (CMB): A Glimpse into the Universe's Infancy - The cosmic microwave background (CMB) is a faint radiation filling the universe, a relic of the Big Bang. It provides a snapshot of the universe when it was just 380,000 years old. By studying the tiny temperature fluctuations in the CMB, cosmologists can glean insights into the universe's age, composition, and geometry. ~ The WMAP Mission: A Pioneer in CMB Observations ~ The Wilkinson Microwave Anisotropy Probe (WMAP) was a revolutionary NASA mission launched in 2001. Its primary goal was to map the CMB with unprecedented precision. By observing the sky in multiple frequency bands, WMAP was able to distinguish between the faint CMB signal and interfering foreground emissions, including those from our own Milky Way Galaxy. ~ The Milky Way's Interference: A Red Herring in the Cosmic Tapestry ~ The image you described, with the Milky Way highlighted in red, illustrates a significant challenge in CMB observations: galactic foreground emission. Our galaxy, a vast collection of stars, gas, and dust, emits radiation across a wide range of wavelengths, including the microwave band where the CMB resides. This galactic foreground can obscure the delicate CMB signal, making it difficult to extract meaningful information. ~ Why is this version of the WMAP image important? ~ This particular image serves as a visual reminder of the challenges faced by cosmologists in their quest to understand the early universe. By highlighting the Milky Way's influence on CMB observations, it emphasizes the need for careful data processing and analysis techniques to remove or mitigate the effects of foreground contamination. ~ How is this version different from other WMAP images? ~ While the standard WMAP images often present the CMB map without explicitly highlighting the galactic foreground, this version specifically draws attention to the Milky Way's impact. This can be achieved by overlaying a red band or mask to indicate the regions where the galactic emission is strongest. - By understanding the nature and extent of galactic foreground contamination, scientists can develop more sophisticated data processing algorithms to isolate the pure CMB signal. This, in turn, allows for more precise measurements of cosmological parameters and a deeper understanding of the universe's history and evolution.
Customer Reviews
4.7 out of 5 stars rating632 Total Reviews
632 Reviews
Reviews for similar products
5 out of 5 stars rating
By Rachel S.1 April 2022 • Verified Purchase
Round Coasters
Zazzle Reviewer Program
My parents really loved these. Am really happy with how they turned out and that they're purchased individually, so you can order however many you want. Bought these at the same time as another gift but this item didn't turn up. Contacted Zazzle about this and they were on it straight away and immediately re-ordered more. Ended up with 2 sets as the 1st set turned up days before the 2nd set. Customer service was excellent. Printing turned out great, nice and clear.
5 out of 5 stars rating
By Jennefer M.28 September 2025 • Verified Purchase
Round Coasters
This is the second order of these coasters - I love the quality and that I can design them myself to fit my decor and when they are getting old and stained I can recycle them and order more! . 
1 out of 5 stars rating
By Anonymous21 July 2025 • Verified Purchase
Square Coasters
I ordered 70 coasters all together. Only 27 came out ok. The print is very low quality and even the cut of the square is very rough. Very disappointing considering I spent nearly $200. 
Tags
Other Info
Product ID: 256706549493818958
Added on 7/12/24, 12:06 am
Rating: G 
Recently Viewed Items
