A massive star-forming gas cloud has been discovered strangely close to Earth. Plus, ancient tools discovered in Kenya are more than 3 million years old. On This Day in History, we examine the Penny Black stamp, the world’s first adhesive postage stamp, and its impact on communication.
Massive star-forming cloud found strangely close to Earth
Ancient stone tools found in Kenya made by early humans
Researchers find 3-million-year-old tools in Kenya, showing development of human ancestors
Penny Black stamp guide
Stanley Gibbons: Penny Black
Royal Mint Museum: Penny Black
Postal Museum: The Penny Black Stamp
First Known Piece of Mail Sent Using a Stamp Goes to Auction
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