34 years ago today, the Space Shuttle Discovery successfully launched the Hubble Space Telescope – the only telescope designed specifically to be maintained in space. 🧵⬇️ (1/3)

“Planet vs. Plastics” This is the official theme for this year's Earth Day, an annual event on 22 April to demonstrate global support for environmental protection. First held on 22 April 1970, it now includes a wide range of events coordinated globally. Each year, Earth Day is…

How many times did you look up something on your phone today? Did you ask ChatGPT a question? How about Alexa or Siri or a social media site? Many people don’t know that the content they use all over the internet comes from Wikipedia, even if they never visit our website.…

The Han dynasty, spanning four centuries, is heralded as a golden era in Chinese history, profoundly shaping the Chinese civilization's identity.🧵⬇️ (1/5)

112 years ago today, the “unsinkable” Titanic sank after colliding with an iceberg that tore open the ship’s hull.🧵⬇️ (1/4)