See the tiny blue circle superimposed on the Milky Way? That is a sphere centered on Earth that is 200 light years across. Technologically advanced civilization on Earth would be undetectable to
IAU Symposium 256
Galaxies
What Is a Light-Year? | NASA Space Place – NASA Science for Kids
It Would Take 200,000 Years at Light Speed to Cross the Milky Way | Space
Two Hundred Light Years | RainyDayMagazine
The Universe within 50000 Light Years - The Milky Way Galaxy
How Big Is The Milky Way? - UNIVERSE TODAY
Milky Way has a 3,000-light-year-long splinter in its arm, and astronomers don't know why | Live Science
Recently, astronomers discovered the most distant Milky Way stars to date, at distances of 775,000 and 900,000 light-years, respectively. How can these two stars be in the Milky Way if our galaxy
How far away is the center of our galaxy from the sun? | Socratic
Young Galaxy 12 Billion Light-Years Away Mirrors the Milky Way | The National Interest
File:Planet Discovery Neighbourhood in Milky Way Galaxy.jpeg - Wikimedia Commons
How can a galaxy be over 27 billion light-years from Earth if the universe is only about 13 billion years old? | Astronomy.com
Milky Way galaxy: Facts about our galactic home | Space
Pin on Space is Beautiful
Stream of stars extends thousands of light-years across the Milky Way
The Milky Way Galaxy is 100,000 light years across, the next closest Galaxy is 25,000 lights years away. Relatively speaking, doesn't that make them extremely close? - Quora
Milky Way's Warp Caused by Recent or Ongoing Encounter with Satellite Galaxy | Astronomy | Sci-News.com
A new measurement puts the Sun 2,000 light-years closer to the center of the Milky Way - Universe Today
If you look up in to the sky at night and are away from any light this is what you could see The milky way is home to at least 200 billion stars and there planets. With a mass between 750 billion and one trillion solar masses (one solar mass=the mass of our sun ...
The Center of the Milky Way Exploded 3.5 Million Years Ago, Shooting Radiation 200,000 Light-Years Into Space
The Milky Way galaxy may be much bigger than we thought
Astronomers discover mysterious 500-light-year-wide void in Milky Way | Space
NASA's Hubble Telescope Captures Milky way-like Stunning Blue Galaxy Two Lakh Light Years Away
Astronomers discover Milky Way galaxy's smallest black hole dubbed 'Unicorn', Science News | wionews.com
NASA's Spitzer Spots Planet Deep Within Our Galaxy
Milky Way look-alike' galaxy found 12B light-years from Earth
