🧵Great to see the announcement of the #JWST mid course correction analysis! Plenty of fuel to get through many years of science. It can’t be emphasized enough that science takes time to mature. 1/n
When something new and exciting is discovered in one year, it takes time to understand. Often we find that we need more observations, and those can take another year or more to get! 2/n
If a mission is too short, it will likely not be able to do some of the most exciting science. 3/n
Significantly more than 10 years of fuel makes it much more likely that we can get the best #JWST science done. 4/n
One more point: more time also makes it more likely that we can be ready when something exciting happens - maybe the next interstellar comet or nearby supernova! 5/n

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More from @pontoppi

30 Dec
Why does #JWST have to be colder than liquid nitrogen? The entire spacecraft is designed around it! So it has to be really important, right? The sunshield deployments over the next couple of days are critical steps needed to get there. Ok, time for another nerdy thread. 1/13 Image
The temperature of the primary mirror is the first thing that determines how faint objects can be detected in the infrared. Sure, size matters greatly if the mirror is cold. But if it's warm, the sensitivity gained from the big mirror is out the window. 2/13
All normal matter (rocks, air, dogs, snow, etc.) emits light on its own according to its temperature. This is a really basic property of nature. Hotter = more light, bluer light. Cooler = less light, redder light. 3/13 Image
Read 13 tweets

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