Recent content by cacarr

It's near certain they do not exist in our galaxy. And highly unlikely they exist in the Local Group. Any other extant technological intelligence that's anywhere near us is extremely likely to be far older than us. If an 800-million-year-old tech civ existed in our galaxy, we likely would not...

There does not appear to be a super compelling reason to build that facility there. But, in the longer term, important telescopes are going to be in space. Light pollution will get worse and the number of objects in orbit will continue to go up rapidly -- Starlink won't be the only...

One suspects that was a joke

" ... far south as Illinois and Oregon (around 50° latitude). ..." No part of Oregon is at 50⁰ latitude. Portland is at 45.5⁰ North