Buzz·Posted on Feb 13, 201515 Times Bill Nye And Neil DeGrasse Tyson Were The Definition Of FriendshipTheir love transcends space and time.by Leonora EpsteinBuzzFeed StaffLinkFacebookPinterestTwitterMail 1. When Neil needed someone to lean on and Bill was right there for him. View this photo on Instagram 2. When Bill explained what he and Neil do when they hang out. Tap to play GIF Tap to play GIF 3. When Bill tackled Neil onstage during a panel. Tap to play GIF Tap to play GIF 4. When they spent Thanksgiving together and even took a Turkey Day selfie. View this photo on Instagram 5. AND OF COURSE: When they took a selfie with the president. View this photo on Instagram 6. But even better was how Neil and told the story of the presidential selfie ... Tap to play GIF Tap to play GIF 7. And how Bill saved the day when Neil's phone failed to capture the pic. Tap to play GIF Tap to play GIF 8. EVEN CUTER THAN THAT (I know, you didn't think it possible), is when Bill did an impression of Neil prepping for that presidential selfie: Tap to play GIF Tap to play GIF 9. When Neil and Bill had cameos on the show Stargate and they joke about the band Flock of Seagulls. View this video on YouTube youtube.com Even though they're wearing space-themed neckwear! 10. When Bill taught Neil how to knot a bow tie. And they were so happy to be so dapper together. Neil deGrasse Tyson @neiltyson Last night in midtown Manhattan, Bill Nye @TheScienceGuy teaches me to knot my first-ever Bow Tie. 06:02 PM - 10 Dec 2013 Reply Retweet Favorite 11. When they drank pink beverages from plastic cups with 30 Rock's Scott Adsit. 12. And when they partied and really let loose: View this post on Facebook facebook.com 13. When Bill was asked whether he or Neil would win in a fight and he and offered this response: 14. When Neil was giving a talk at Florida State University and decided to call his buddy Bill in front of the audience for some extra insight. View this video on YouTube youtube.com And had adorable technical difficulties with speakerphone. 15. And when Bill joked about how he and Neil are planning a run for office in 2016. So ... when can we all hang out? View this photo on Instagram