Night sky is getting crowded

• StartRocket: a Russian startup, has revealed it wants to launch an array of up to 300 small satellites with retractable reflective sails into low earth orbit. Once there they can be arranged like pixels on a screen to depict company logos as star-like constellations as they catch the light from the sun.
• Fake moon: Chinese company announced last year its ambitious plans to create a “fake moon” 
• Orbital reflector: Nevada Museum of Art partnered with artist Trevor Paglan to launch Orbital Reflector. If successful it would have looked like a new star from Earth. “I think it’s arrogant and conceited to think a human can add art installations to ‘beautify’ something as sublime as the heavens,” says Halabi.
• Chinese own space station: which would also be visible periodically with the naked eye if completed.
• SpaceX: has also been granted permission to launch nearly 12,000 Starlink satellites to provide broadband internet access in remote locations.
• Space debris

 Reference: Is-humanity-changing-the-night-sky-with-artificial-stars?