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As often as 3-4x per year or more we get near misses that are less than 1LD. There was one this past spring that was .03LD that flew right past without a hitch. Check out spaceweather's site for cool info.
The Universe is expanding, but not at a constant rate.
Some celestial objects will come closer to us and some will recede at various speeds. Some will even remain static.
That being said, slim chance mankind will be alive in the 100,000 light years it will take for it to even be noticeable if we were alive.
So rest easy my little one, we're safe tonight.