Echo Astronomy

In this post I will try to present the 11 mysteries of modern astronomy and in the future I will discuss them individually.

There are the 3 well renowned mysteries:

• Where did universe come from?
• What is the universe made of?
• Is there life in space?

And the 8 less renowned ones:

• How did Black Holes get so big?
• Where are the dwarf galaxies?
• Sedna's Orbit
• Lack of Tidal Locking
• Long Stellar Pulsation
• Planet Formation
• Jets
• Comet Tails