Elon Musk bought a 9.2% stake in Twitter, amounting to $2.9 billion.
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The hashtag #5secondsofsummer trended worldwide for the first time on Twitter.
The EU signed a contract to build an $11 billion satellite network to rival Elon Musk's Starlink.
Twitter was launched to the public.
Donald Trump was permanently suspended from Twitter due to the risk of further incitement of violence.
Elon Musk announced that he was building a spaceship called Starship that would travel to Mars and return to Earth.
