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Saving Mt. Wilson Observatory: Inside the long battle to maintain the spot where we found our place in the universe

Los Angeles was once the best place in the world to see the universe.
The most important things we know about the cosmos were discovered in the early 20th century at Mt. Wilson Observatory. It was here, 100 years ago, that Edwin Hubble noted a light in the distance that would lead to one of science's greatest discoveries.
By night, astronomers kept watch at the best telescopes on Earth. But by day, a city grew between the mountain and the sea. The lights of Los Angeles multiplied with each passing year until their glow obscured that of the stars above.
Astronomers moved on to clearer skies, beneath which larger and more powerful telescopes would be built. And Mt. Wilson Observatory discovered what so many aging luminaries in L.A. have: Once your star light fades, no one is quite sure what to do with you.
With an annual budget smaller than that of some fancy L.A. parties, a nonprofit organization and volunteers have done a heroic job of keeping the grounds and telescopes open for visitors and the few scientists still working there.
It's time to start worrying about space junk around the moon, too

It's getting crowded up there. An increase in military, commercial and scientific launches, coupled with a lower cost for rideshare cubesat launches, means lots more space junk to deal with in coming years. And we're not just talking about low Earth orbit; the moon and cis-lunar (near lunar space) is about to become busy as well.
While we track and understand (for the most part) what's in low Earth orbit (LEO), we often fail to keep tabs on what's in Medium- to High- (Geostationary/Geosynchronous GEO) orbit and beyond. Even less so is true around the moon, which is about to become a busy place in coming years. Now, a recent study out of Purdue University is looking to model and track space debris around the moon, with an eye towards mitigation.
Virgin Galactic carries first Pakistani into space
