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Safest Place on Earth from Falling Meteorites

Robertson et al. (2021) (note the erratum) provide a very comprehensive answer to your question. Surprisingly (to me) the asteroidal flux (impacts per unit area) is slightly higher at the poles (by 8%)...
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Whats the probability of a hazardous impact for human life on Mars?

We actually have a very good idea of this because the Mars Reconnaissance Orbiter has been orbiting Mars for over a decade. The MRO is, basically, a spy satellite around Mars and is continually taking ...
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Are we less safe now that Arecibo is no more?

The linked article is copied from a university press release. Arecibo's article is more matter-of-fact but naturally also emphasizes the value of their own work. NASA Goldstone can do planetary radar ...
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If two stars collide, what is the probability that they merge to form a single star?

Fairly good. Two stars of mass $M$ falling from infinity straight towards each other until they merge at distance $2R$ will get kinetic energy $GM^2/R$. This is a lot, for two suns it is \$1.8978\times ...
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Is there any known asteroid or comet whose path goes through the Earth?

JPL and ESA provide tools to search for small bodies meeting user-defined criteria. I tried: H <= 24 MOID <= 1e-4 au with each and got these results in common: (89959) 2002 NT7, an H=16.5 (~1....
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Accuracy of predicting an asteroid strike in 1987

There are problems with this: What happens when an asteroid hits the atmosphere The asteroid will be travelling fast, more than 10 km per second. In front of it the atmosphere will be compressed and ...
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Where can I find historic rates of meteor impact events?

The database of the meteoritical society might be what you are looking for. You can do a search by year. Based on this data, I drew this quick plot of number of recorded meteorites per year Now ...
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What is the chance that the Sun will not rise tomorrow?

My guess is that the most likely mechanism would be something like a world-war/pandemic that temporarily prevents astronomers from analyzing sky surveys and/or prevents planetary defense strategies ...
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Whats the probability of a hazardous impact for human life on Mars?

Further to Mark Olson's answer, while an asteroid impact is popularly thought of as the reason for extinction events on Earth, the reality is more prosaic, with volcanism and glaciation being the most ...
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is there any mathematical formula, paper or anything that shows the probability of a meteor hitting a particular spot of moon's surface?

There is this source that claims 2800 kg of meteor material lands on the moon everyday. They break down that amount to determine an average area per strike. There have been other studies like this ...
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