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Most Popular Questions

Below are listed the top 10 most frequently read Ask a Rocket Scientist articles during the past month.

Do the planets and moons in our solar system tend to orbit and rotate in the same plane? If so, what would be the cause of such uniformity? Why do all the planets orbit the Sun in the same direction?
What were the ancient Greek names for the original nine planets?
My friend is trying to convince me that Japan used submarines to attack Pearl Harbor, but we all know it was planes from aircraft carriers, right? What can you tell me about the attack? Is my friend totally nuts?
I'm confused by the way the record for largest plane is determined. I've read about the 747-400, An-225, Spruce Goose, and Bristol Brabazon. ... Could you please define the records, if any, that these aircraft hold with EXACT wording to the particular record?
Can you explain why a golf ball has dimples? If dimples reduce drag, why don't we see this surface feature on other aerodynamic shapes like airplane wings?
Is it true that Russia built a copy of the space shuttle? Was it actually turned into a piece of playground equipment?! Why doesn't NASA use it to replace the Columbia?
Has the United States or any other country ever had a plane carrying a nuclear bomb crash? Has a nuclear weapon ever been lost?
I've seen pictures of engine wreckage at the Pentagon after 9/11. Your site says the engine of a 757 is over 6 feet across but this piece is way smaller than that. Does it prove that whatever hit the Pentagon was not a 757 and the government is lying about it?
Does the Joint Strike Fighter have an internal gun? What are the weapon loads? It does not seem to have as much internal space as the F-22.
I like your article about the world's biggest plane but wonder about helicopters too. How are they ranked? By weight, length, or rotor size? Is the CH-53 the biggest in the world or something else?

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