Detailed text transcripts for TV channel - CNN - 20190720:15:56:00
Smoking, these are the actual apollo 11 flight plans on the consoles. this here is where the flight surgeon sat. this is the astronauts' heartbeats here on the monitor. such a labor of love restoring this iconic mission control room to all of its glory. martin? >> you said it best. it looks like they just stepped away for a moment. rachel crane, thanks very much for that fascinating stuff. >> still ahead, a heat wave is gripping more than half the country. it will feel like 110 degrees in some places this weekend. what's causing this blistering heat and how long will it last? answers next.