Astronauts say the best thing about traveling in space is that it allows them to look back at our big, blue, beautiful Earth. An exhibit currently on display at the New Mexico Museum of Natural History and Science features a spectacular series of high resolution Landsat satellite images of our planet. From the swamps of the Florida Everglades to the peaks of Mount Kilimanjaro to the dunes of Australia's Great Sandy Desert, these images will remind you how lucky we are to live on Earth. (Try ordering a gin and tonic on Mars.) The exhibit runs through Oct. 31. 841-5955.