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What is the name for the celestial body of interstellar gas and dust where stars are sometimes born?
105Is the gravitational pull on an object equalized if the object is at the centre of a planet, i.e. Surrounded by the mass of the planet, which is creating the gravity?
121When a superior planet is at quadrature in reference to the earth, what is its elongation in degrees?
173Astronomers usually detect the electromagnetic emissions of a single neutron star in what single form?
112Which of the pulsating variable star whose brightness varies in a very regular time period of about 1-50 days?
189According 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?
146
How far away from earth, is space?
A meteor that reaches the surface of the earth is more accurately called a?
How many half- moons are there in a lunar cycle?
Tell me how many moons does saturn have?
This powerful telescope weighs about 11 tons, has a primary mirror 7.9 feet in diameter, and orbits about 380 miles above the earth?
Is there water in moon rock?
Mars has a thin atmosphere composed mainly of what gas?
Describe the atmosphere on Venus, Mar and Jupiter.
Which of the pulsating variable star whose brightness varies in a very regular time period of about 1-50 days?
The kappa cygnids and the northern delta aquarids are names for what phenomena?
Tell me how long is it until our solar system ceases to exist?
Which was the first space rocket to hit the moon?
When did solar system come into existence? What is the expected life of solar system?
The hydrogen envelope that surrounds the comets nucleus derives its hydrogen most directly from?
How did the moon form?
