12. There are only about 5,000 stars
visible to the naked, average,
human eye. And, because the
Earth itself gets in the way, you
can only see about a half of
those from where you stand.
14. Shooting Stars
Shooting stars, or meteors, are caused
by tiny specks of dust from space.
These particles burn up 65 to 135 km
above Earth's surface as they plunge
at terrific speeds into the upper
atmosphere, making the air glow as
they pass.
16. Scheduling the Meteor Shower…
The Geminids Meteor
Shower is considered
to be the queen of the
Meteor Showers.
17. Space Crafts
As of now, there are more than 8,000 satellites in
orbit around the Earth.
voyager 1 is the only spacecraft the had already
left our solar system.
Voyager 1
18. The famous Spacecrafts you can see with your naked eyes…..
1. International Space Station