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America’s Youth Christen NASA’s Twin New Lunar Craft – Ebb & Flow
[/caption] A classroom of America’s Youth from an elementary school in Bozeman, Montana submitted the stellar winning entry in NASA’s…
Andromeda Dwarf Galaxies Help Unravel The Mysteries Of Dark Matter
[/caption] Yep. It's that time of year again. Time to enjoy the Andromeda Galaxy at almost every observing opportunity. But…
What did Isaac Newton Invent?
Sir Issac Newton is best know for his laws of motion. Many people's knowledge of his scientific contributions stops there.…
Gravitational Redshifts: Main Sequence vs. Giants
[/caption]One of the consequences of Einsteins theories of relativity is that everything will be affected by gravitational potentials, regardless of…
Precession of the Equinoxes
When he was first compiling his famous star catalogue in the year 129 BCE the Greek astronomer Hipparchus noticed that…
What is Gravitational Force?
Newton's Law of Universal Gravitation is used to explain gravitational force. This law states that every massive particle in the…
Ballistic Trajectory
[/caption] Imagine you throw a ball as hard as you can. The ball flies through the air and lands some…
What Is Terminal Velocity?
The higher you are when you jump, the more it hurts when you hit the ground. That's because the Earth's…
Eccentricity
When it comes to space, the word eccentricity nearly always refers to orbital eccentricity, or the eccentricity of the orbit…
Gravity Formula
The gravity formula that most people remember, or think of, is the equation which captures Newton's law of universal gravitation,…