ScienceBest of 2015The 30 Best Neil DeGrasse Tyson Tweets Of 2015“In 5-billion years the Sun will expand and engulf our orbit as the charred ember that was once Earth vaporizes. Have a nice day.”By by Alex KasprakBuzzFeed StaffPosted on December 2, 2015, 6:00 pmTwitterFacebookLink 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. Keep 'em coming in 2016, Neil!