3 ms·
The "us" in "let us" are humans that are alive 30,000 years after a hypothetical quasar starts at SgrA*. The image would look realtime to us. Just weird relat
by willis936 4y ago
The "us" in "let us" are humans that are alive 30,000 years after a hypothetical quasar starts at SgrA*. The image would look realtime to us. Just weird relativity things.