Who is the known as the father of indian astronomy?
The time between two successive meridian transits of the sun as observed from a stationary spot on the earth's surface is called?
How many moons does saturn have?
If the temperature of a star increases from 10,000k to 30,000k, by what factor will the rate of energy radiated per second increase?
What are the super giant novae stars?
Explain how big is the universe?
Which space flight sent the pictures of moon’s farside and when?
Explain if gravity only attracts mass and if light does not have mass why does it appear to bend when passing a planet?
Which is the star nearest to earth?
What moon of neptune orbits in a retrograde direction?
What is the speed of solar wind?
Does non-carbon based life exist somewhere in the universe?
How did the moon form?