Physics law of SL Solar System

What shape of SL Earth?
Sphere or plane?
How to observe?

Is SL Earth rotating or not?
How to observe?

Is SL Earth moving or not?
Is SL Sun moving or not?
How about SL Moon?
Think relation between SL Earth, Sun and Moon.
How to observe?

Why 3 hours daytime and 1 hour nighttime in SL?
Think SL solar system model.
How to proof?

Space Physics/ 宇宙物理

Ride the Big bang at the expanding Universe
http://maps.secondlife.com/secondlife/Exploratorium/126/141/426

Galaxy Clusters

http://maps.secondlife.com/secondlife/Exploratorium/104/68/26

Astronomy/ 天体観測

Sagan Planetarium
http://slurl.com/secondlife/Aspen/200/140/3721

Hawaii Observatory
http://slurl.com/secondlife/CUH%20Alliance/49/206/4002