Ongoing drought - and increasing temperatures - have reduced water flow in the Colorado River, with more dramatic reductions expected. This ongoing, unprecedented event threatens water supplies in cities in the U.S. West and some of the most productive agricultural lands anywhere in the world.
A unique and beautiful poster-sized calendar. Keep up with all phases of the moon every night of the year. Only about 100 left in stock, get them while you can!
Saturn's moon Iapetus is a world of contrast, with light and dark regions fitting together like cosmic puzzle pieces. Image via NASA/JPL-Caltech/Space Science Institute.
