We are not alone - There are many more
The Milky Way contains over 100 billion planets and at least 200 billion stars.
As per NASA , astronomers calculated that in our galaxy over 9 billion Earth-like planets exist.It will take nearly 800 years if someone tries to fly to PLUTO (Who will survive to witness this?).
The sun's mass takes up 99% of all the mass of the solar system.
We believe Life is known to exist only on Earth, but NASA has found fossils of microscopic living things in a rock from Mars. So can we survive in MARS too?
The sunset on Mars appears blue. Imagine a single sunset in earth as blue.......... That would be interesting to see.
Light year is a measure of distance, not time. It is the distance that light travels during one Earth year. Did you know this?
- Space is completely silent.