https://www.reuters.com/article/us-astra-m-a/rocket-startup-astra-to-go-public-through-2-1-billion-blank-check-deal-idUSKBN2A21JJ >Astra, a startup that makes small rockets to send satellites into orbit, is going public at a valuation of $2.1 billion through a deal with blank-check company Holicity Inc, the companies said on Tuesday.