Answer / Dheeraj Kumar Mishra

Our solar system is expected to cease to exist in about 4.5 billion years, when the sun will expand into a red giant and engulf most of the inner planets, including Earth.

What substance is responsible for neptunes blue-green color?

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How long is a day on saturn?

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Which is the first unmanned space vehicle which landed on the moon?

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Tell me how long is it until our solar system ceases to exist?

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Is the gravitational pull on an object equalized if the object is at the center of a planet, i.e. Surrounded by the mass of the planet, which is creating the gravity?

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The celestial coordinate analogous to latitude is called?

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Which star is called the polaris?

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This powerful telescope weighs about 11 tons, has a primary mirror 7.9 feet in diameter, and orbits about 380 miles above the earth?

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Who stated that planets are originated from the collision of the sun and comet?

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Which of the constellations cannot be seen in the summer sky of the northern hemisphere?

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Explain how far from earth, is the moon?

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How many black holes exist?

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