Khan Academy on Twitter: "This week's #AskSalAnything comes from Elliot on Instagram: Do you think #Mars is really the next best settlement for humanity? 🚀🤔 Got a question for Sal? Reply or tweet us #AskSalAnything.… https://t.co/rFQygSNU0K"

Country	Code	For customers of
United States	40404	(any)
Canada	21212	(any)
United Kingdom	86444	Vodafone, Orange, 3, O2
Brazil	40404	Nextel, TIM
Haiti	40404	Digicel, Voila
Ireland	51210	Vodafone, O2
India	53000	Bharti Airtel, Videocon, Reliance
Indonesia	89887	AXIS, 3, Telkomsel, Indosat, XL Axiata
Italy	4880804	Wind
3424486444	Vodafone
» See SMS short codes for other countries

1. elisabela‏ @elisabelaslate 27 Apr 2018
  
  Report Tweet
  Replying to @khanacademy
  
  Will you please post a GRE prep course onto Khan Academy? #AskSalAnything
  
  1 like
  Thanks. Twitter will use this to make your timeline better. Undo
  
  Undo
1. Shivankar Singh‏ @Shivankar040 28 Apr 2018
  
  Report Tweet
  Replying to @khanacademy
  
  It'll very interesting to know anything. What we don't know! that's what Khan Academy teach us. It would be good settlement #asksalanything
  
  1 like
  Thanks. Twitter will use this to make your timeline better. Undo
  
  Undo
1. عرفان‏ @irfan_allahyar 27 Apr 2018
  
  Report Tweet
  Replying to @khanacademy
  Thanks. Twitter will use this to make your timeline better. Undo
  
  Undo
1. Bianca Donolo‏ @BiancaDonolo 27 Apr 2018
  
  Report Tweet
  Replying to @khanacademy
  
  I like a Venus version of Cloud City. May not be as far-fetched as it sounds.
  Thanks. Twitter will use this to make your timeline better. Undo
  
  Undo
1. Julie Frances Lloyd‏ @jfranceslloyd 27 Apr 2018
  
  Report Tweet
  Replying to @khanacademy
  
  True. I think Mars reminds him of South Africa, the colour of the earth is the same. A subconscious thing that calls him.
  Thanks. Twitter will use this to make your timeline better. Undo
  
  Undo
1. aurora‏ @T49Ri 27 Apr 2018
  
  Report Tweet
  Replying to @khanacademy
  
  Wonder if humanity has to start anew, will it be better than what it is now
  Thanks. Twitter will use this to make your timeline better. Undo
  
  Undo
1. aurora‏ @T49Ri 27 Apr 2018
  
  Report Tweet
  Replying to @khanacademy
  
  Going out of earth is like an inflection point
  Thanks. Twitter will use this to make your timeline better. Undo
  
  Undo
1. Tristan‏ @Yopperpo 28 Apr 2018
  
  Report Tweet
  Replying to @khanacademy
  
  Sal - you've made thousands of videos encompassing many subjects for Khan Academy. However, do you ever feel insecure and wonder if "there's probably someone out there that could explain this topic better"? How do you deal with the stress of knowing so many people will watch you?
  Thanks. Twitter will use this to make your timeline better. Undo
  
  Undo
1. P A R T H I B A N ☭ பார்த்திபன்‏ @Parthibanmku 30 Apr 2018
  
  Report Tweet
  Replying to @khanacademy
  
  when you launch Khan Academy Tamil website????????
  Thanks. Twitter will use this to make your timeline better. Undo
  
  Undo