Does a sunset in the west and a moonrise in the east ever happen at exactly the same time? Yes, a sunset and moonrise can occur at about the same time. Specifically, it occurs on the night of a full moon! Let’s convince ourselves of why this is… Whenever we think about sunrises/sunsets in relation … Read more Does a sunset in the west and a moonrise in the east ever happen at exactly the same time?
If X-ray and radio beams can emit from black holes and the like in interstellar space, can lower frequency waves on the middle to low end of the spectrum be emitted from high-powered beams on Earth and then detected by telescopes – like a sub pinging to its target – in order to search for … Read more Can we find exoplanets (and possibly extraterrestrial life) by beaming low-frequency waves towards them?