Stuff in Space is a neat interactive visualization...  ...the objects orbiting the earth. There are tons of satellites , spacecraft parts, and debris out there, just cir...  ...800 km above the equator; those are geostationary satellites . You'd think that aliens should be able to find u...  ...that aliens shoul...

Climate change isn’t all bad; it just depe...  ...igh as they were in previous centuries. 5. SATELLITES SPIN FASTER Track Earth's satellites with NASA J-Track-3D [Java applet]...  ...small changes in the speed of orbiting satellites...