/u/TruthOf42's posts in /r/askscience

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Can a star cool down enough and become a giant planet?

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Given enough resources, what's the shortest amount of time a vaccine could be made widely available that would still be considered safe and effective?

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Would have getting to the moon been any easier if they had waited another 10 or 20 years, so that technology could have been more advanced?

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The Perseverance rover cost about 2.2 billion dollars, with about .25 billion going to the launch, why does it cost so much to build a rover when we've created the infrastructure for building them already?

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How bad would it be if I woke up one day with a nice healthy immune system, but it just "forgot" every past disease it found/fought?

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What kinds of things is spacex trying to learn from test flights?

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How far back in time would I have to go before I could no longer produce an offspring with my ancestors?

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How long could we, realistically, power a deep space probe for?

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What did we learn from Voyager's trajectory?

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What would it take to permanently terraform Earth to be like Mars?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Can a star cool down enough and become a giant planet?	4613
Given enough resources, what's the shortest amount of time a vaccine could be made widely available that would still be considered safe and effective?	1
Would have getting to the moon been any easier if they had waited another 10 or 20 years, so that technology could have been more advanced?	1
The Perseverance rover cost about 2.2 billion dollars, with about .25 billion going to the launch, why does it cost so much to build a rover when we've created the infrastructure for building them already?	1
How bad would it be if I woke up one day with a nice healthy immune system, but it just "forgot" every past disease it found/fought?	1
What kinds of things is spacex trying to learn from test flights?	1
How far back in time would I have to go before I could no longer produce an offspring with my ancestors?	1
How long could we, realistically, power a deep space probe for?	1
What did we learn from Voyager's trajectory?	1
What would it take to permanently terraform Earth to be like Mars?	1