 Four volunteers spent a year sealed inside a simulated Mars habitat at Johnson Space Center in Texas, and they emerged on Saturday. Hello. It's actually just so wonderful to be able to say hello to you all. To PO-1 has been a unique experience with great challenges, joys and sorrows, and a lot of hard work, with a fair bit of fun thrown in as well. I wish to thank the crew, my friends and family, and my partner Elliot, who told me not to name drop him, but he deserves it.