Astronomy Decoder

It makes sense to me.

Same here. Didn't make sense to me. Maybe make another answer.

I think it's clear what the clue is asking for, no need to change it.

I hadn’t a clue on that one, but when I saw the answer I wasn’t quite sure how I would have worded it to make it more obvious. As a non physicist that’s not a word I encounter very often. Not that I have a problem with that. If QM wants to change the word it may make it easier for people to get but the quiz is probably set at about the right difficulty level as is.

my gripe is that it should say "appears to move" lol

I agree that this clue isn't exactly accurate. Planets in retrograde are only appearing to move backwards. The only objects that actually move in the 'reverse of normal direction', or backwards, are antiparticles in the Feynman-Stuckelberg interpretation.

Agreed

Yes, but there's a caveat saying that every answer is a single word.

Words tend to be made up.

https://en.m.wikipedia.org/wiki/Finderscope

Really? Me too!

Snap. Google saved me

Actually please change the clue for Neil deGrasse Tyson to “Pluto Murder”. Thanks.

Ever been in orbit around Earth? Feels very much like free floating.

asteroids dont necessarily have to orbit the Sun

some asteroids don't orbit anything. asteroid muamua and comet borisov travel through space and have passed through the solar system and left perfectly fine.

But why type more than you need to?

When I heard Neil Armstrong say it, when I was 13-1/2 years old, I thought he said "That's one small step for man, one giant leap for mankind". I immediately knew what he meant to say, and thought he must have flubbed his line, saying "man" instead of "a man". If you listen to it, you'll hear what I heard.

299792458 metres per second is the exact value (not an approximation).

"First name of the philosopher that defined the Theory of Gravity" - the correct answer must be Plutarch. Isaac Newton was not a philosopher, and his "definition" of gravity was likely plagiarized from Robert Hooke's papers on universal gravitation from 4 or 5 years prior. Not to mention that the word "gravity" in regard to universal attraction to the Earth was in use in the English language for hundreds of years before Newton, borrowed from Latin, who likely borrowed the idea from Plutarch, simply eschewing the original Greek term for it in favour of a Latin term.

If you want to stick with the answer, maybe "first name of 'the father of classical mechanics'" or, even better IMO, "the first name of the inventor of the reflecting telescope."