#NASAWebb Trivia Time: How thin is the layer of gold covering Webb's mirrors?
Hint: You can find the answer in the link above!
Show this thread
One of the most iconic features of the #NASAWebb telescope is its primary mirror: 18 segments made of beryllium and covered in a thin layer of gold. The large mirror (21.6 ft/6.5 m in diameter) will view faint galaxies 13 billion light-years away: https://go.nasa.gov/3mWQ09K pic.twitter.com/EE3spCHPDy
-
-
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
What orbit will you go into? Around the moon?
-
Around the sun
End of conversation
New conversation -
-
-
Serious question: You guys have been working on this for 25 years. What if the rocket that takes it up has an accident, like it explodes?
-
Ask the ESA for a freebie.
End of conversation
New conversation -
-
-
This damn telescope gives me as much anxiety as the election.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
On attend le lancement avec beaucoup d'impatience.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
How much longer are you guys going to drag this out for?
-
It’s ready to go. They said tomorrow
End of conversation
New conversation -
-
-
How thick is the gold layer over the beryllium? I'm guessing that there was some thought put into accounting for micro-impacts and how they would effect performance.
-
Thinner than a human hair! (~1000 Angstroms in thickness). More here: https://www.jwst.nasa.gov/content/observatory/ote/mirrors/index.html#5 … As for micrometeoroids, tests showed a negligible impact on the mirrors: https://jwst.nasa.gov/content/about/faqs/faq.html#micro …
- Show replies
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.