"A look at how @CS50 has incorporated artificial intelligence (AI), including its new-and-improved rubber duck debugger, and how it has impacted the course already." 🦆 With Rongxin Liu et al. With thanks to @OpenAI, @Microsoft, and @GitHub. https://t.co/404RoxneIo

Live from @Harvard at 1:30pm EDT, this is Week 1 of @CS50 on C. Open to anyone online. This lecture will become part of CS50x 2026 on @edXOnline on January 1, 2026. To attend in person some day, see https://t.co/1GzsV3LfXa. On @YouTube at https://t.co/ydMMOBBEPC. On @Zoom at

Live from @Harvard University on Wednesday, September 3, at 1:30 PM EDT, this is @CS50's first lecture of Fall 2025, aka Week 0, on: Computer Science. Computational Thinking. Problem Solving: Inputs, Outputs. Representation: Unary, Binary, Decimal, ASCII, Unicode, RGB.

Hello, world! @CS50's lectures in Sanders Theatre at @Harvard are open to the public, September 2025 – November 2025. Whether you are (or were!) a student or teacher of any of CS50's courses, or just CS50-curious, you are welcome to attend CS50's lectures in person in Cambridge,

I am considering running for office and the process has been a learning experience to say the least. Let's get into it.

Last week, we hosted this year's @CS50 Educator Workshop, bringing together teachers from 14 countries to learn how to adopt or adapt CS50 for their own classrooms. 🌎 Over two days, educators explored CS50’s teaching resources, heard from CS50’s own @davidjmalan about the

This was the first-ever @CS50 Hackathon at @Meta in London 🇬🇧, with workshops on AI, Llama, Wearables, and Number Games by CS50’s own @davidjmalan and Rongxin Liu, Oxford’s own @tomrocksmaths, et al. 💻

Last month, @CS50’s team got together to say goodbye to Yuliia and Vlad as they prepared for new adventures. For the last two years, Yuliia has been CS50’s preceptor, helping manage CS50 both on campus and off, while Vlad worked on CS50's social media and video production.

One of the most popular light jets, the economical Citation CJ3 has a charter range of 3+ hours and a cruise speed of 478 mph. 134 CJ3’s are currently chartering in the US.

This was the @CS50 Hackathon at @Meta in London, with @OxfordConted and @tomrocksmaths. 🦆 With workshops on AI, Llama, Wearables, and Number Games.

Meet Zeyad Belal, from Port Said, Egypt. For his #CS50FinalProject, he built a classic memory card game that challenges players to match pairs using logic and concentration. 🧩 https://t.co/bp6gjFRmZR

Q: Will my real name or username appear on my certificate? A: For CS50 Certificates, we will ask you what name you wish to appear. For edX’s Verified Certificates, the name associated with your edX account will appear on your verified certificate. #FAQ50

CS50 is back in the United Kingdom! Join us in London on Friday, June 20, 2025, for a @CS50 Hackathon with the @OxfordConted and @Meta, with Professor @davidjmalan from @Harvard, Professor Daniel Wilson from Oxford, Professor Tom Crawford from Oxford (and @Cambridge_Uni and

America's interests DO NOT align with Zelensky's. For that matter -- the Ukrainian people themselves yearn for a negotiated peace...and a new president! See my brand new polling, from that country...👇

Ever wondered how AI is transforming healthcare? 🩻 In this #CS50seminar, @CS50’s Teaching Fellow Ravi Rajamani introduces you to CXR Foundation, an open-source model from Google Health AI for analyzing chest X-rays. Learn how to run your first inferences, explore real-world use

"As a graduating senior, if you asked me about one of my most memorable moments at @Harvard, I would still immediately think of my very first lecture here. It happened to be @CS50 – Introduction to Computer Science...", by Inno '25. https://t.co/SivfQe9J81

Do you know about the @CS50 Manual?📘 A simplified version of C's "man pages" for functions frequently used in CS50. Whether you're just getting started or need a quick reference, it’s here to help. https://t.co/XCbOKTb5UX

Did you get a free certificate prior and now want to upgrade to a verified one? If so, simply log into your edX account and purchase a verified certificate for that course. After making that purchase, email us your edX purchase receipt to certificates@cs50.harvard.edu with the

Watch Professor @davidjmalan and @CS50’s own Yuliia Zhukovets answer your questions during these Office Hours recorded at the CS50’s office. 🏫 https://t.co/1ZItO46jxz

What can we learn from the past 20 years of education reform in New Orleans? @RaviMGupta shared his thoughts on the final episode of Where the Schools Went:

Via @nytimes, "Dr. @davidjmalan, a computer science professor, has integrated a custom A.I. chatbot into a popular class he teaches on the fundamentals of computer programming. His hundreds of students can turn to it for help with their coding assignments. Dr. Malan has had to