Adam Frank writes: KEY TAKEAWAYS When you look at a picture of a galaxy that is 75 million light-years away, you are seeing that galaxy at a time when dinosaurs ruled the Earth. Distance translates into time because the speed of light is finite. What you perceive as “now” is really layer after layer of light Read More…
Einstein’s Relativity
At Live Science: Are black holes wormholes?
A possible “shortcut” through the universe?
At Big Think: Without Einstein, we might have missed General Relativity
In considering “the only important question we can ask”, namely, “What is true?”, can we think of any commonly held theory that matches some of the data, but has had to be propped up by various “epicycles,” and may “lead us even farther astray” by missing a profound understanding of reality?