In the next few months, from its perch atop a mountain in Chile, the Vera C. Rubin Observatory will begin surveying the #cosmos with the largest camera ever built.
Every three nights, it will produce a map of the entire southern sky filled with #stars, #galaxies, #asteroids and @supernovae — and swarms of bright #satellites ruining some of the view.
Swarms of satellites are harming #astronomy.
Here’s how researchers are fighting back.
www.nature.comSwarms of satellites are harming astronomy. Here’s how researchers are fighting backSpaceX and other companies plan to launch tens of thousands of satellites, which could mar astronomical observations and pollute the atmosphere.
A near-Earth asteroid, 2024 YR4, has a 2% chance of hitting Earth on December 22, 2032.
will carry out a five-year baseline survey to find at least two-thirds of the unknown 
larger than 140 meters 
. It will launch around 
September 2027 to detect and observe 
threat to Earth 
of the 
