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Happy Friday, dear readers! If you’re in the northern hemisphere, I hope you’re enjoying the tail end of summer, with all its warmth and extra sunlight, even if the school year has already started again. If you’re south of the equator, I hope winter hasn’t been too dreary and that there’s some spring sunshine just around the … Continue reading
In the last two posts, I’ve talked about some of the ways that we can observe the Earth’s climate, using sensors to acquire data on temperature, rainfall, clouds, winds and many other characteristics of the Earth’s atmosphere and surface. Some of this environmental sensing is done in-situ, like the meteorological stations we talked about two … Continue reading
If you’re a frequent reader of this website, you’ll know that I have a moderate-to-severe obsession with spaceships and the idea of interplanetary travel. It is one of the great tragedies of my life that I’ll never catch a ride on Serenity. I still hold out hope that a journey to Mars is in my … Continue reading
As you read this article – right now, right this second – the odds are good that something is looking down on you from space and recording what it sees. UPDATE: Randall Monroe – creator of xkcd comics – posted this cartoon recently, explaining that satellites are the only human artifacts that can be seen … Continue reading
science and the world 