Who were the ancient indian astronomers?
Which is the only star of the milky way galaxy?
The magellan clouds are actually what type of celestial body?
When was the first american manned space mission to moon begun?
The persieds meteor showers are viewed in the state of maine during what month?
The 29 days it takes the moon to complete an orbit around the earth is called a?
Astronomers usually detect the electromagnetic emissions of a single neutron star in what single form?
How many stars are there, which are normally visible?
How were the earth, sun and moon formed?
How was the moon formed?
What are the only two planets to rotate from east to west?
Is pluto really a planet?
Tell me how many moons does neptune 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?
Which was the first space rocket to hit the moon?