Follow CNN, NASA and KATY PERRY on Twitter!

NASA, KATY PERRY also Tweeted.

Who to follow   CNN @CNN   Follow It's our job to #GoThere & tell the most difficult stories. Join us! For more breaking news updates follow @CNNBRK & Download our app 📲cnn.it/apps 1.1K Following 40M Followers   NASA @NASA   Follow Explore the universe and discover our home planet with @NASA. We usually post in EST (UTC-5) 270 Following 29M Followers   KATY PERRY @katyperry   Follow Love. Light. 210 Following 110M Followers Settings  |  Help  |  Unsubscribe We sent this email to @NoraAdam3   Twitter, Inc. 1355 Market Street, Suite 900 San Francisco, CA 94103