These doughnut shaped zones of atomic particles consists of electrons and protons captured by the earths magnetic field from the solar winds and are called?
Answer / Ripan Sarkar
The auroras, or Northern and Southern lights
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Explain how big is the universe?
The work of this harvard college observatory scientist made possible the first accurate determination of extragalactic distances by what is often called henriettas law?
Explain how is venus like earth?
Who were the ancient indian astronomers?
All of saturns moons are composed predominantly of what substance?
When a superior planet is at quadrature in reference to the earth, what is its elongation in degrees?
Explain how can space expand faster than the speed of light?
How have some stars had time to die since the universe began?
According to keplers third law, plotting the squares of the periods of the planet against the cubes of the semi- major axes of their orbits will result in what sort of graph?
When did the challenger return to the earth after its first mission?
Explain how is venus different to earth?
Which is largest and most massive star?