$29.95
Astronomers have long known that the Universe is expanding, but everything they could see indicated that gravity should be slowing this spread. Instead, it appears that the Universe is accelerating its expansion and that something stronger than gravity --dark energy -- is at work. In Einstein's Telescope Evalyn Gates, a University of Chicago astrophysicist, transports us to the edge of contemporary science to explore the revolutionary tool that unlocks the secrets of these little-understood cosmic constituents. Based on Einstein's theory of general relativity, gravitational lensing, or "Einstein's Telescope," is enabling new discoveries that are taking us toward the next revolution in scientific thinking -- one that may change forever our notions of where the Universe came from and where it is going.$29.95
3D Solar System Mobile Craft Kit is 2-in-1 learning activity toys for kids. This 4M's educational product is a science toy teaching children about the Solar System, planets and space. And it's an engaging craft kit that allows kids to build their own 29.5 inches glow-in-the-dark solar system mobile! This creative science kit from Educational Toys Planet includes a full set of snap-together planets, hanging frame and string, two strips of paint, two glow paints and a paint brush. 3D Solar System Mobile Craft Kit also contains a colorful Solar System poster with interesting science facts! The 3D planets mobile craft comes complete with the detailed painting and assembling instructions.$9.95
Can you guide the ball through the maze, from the blazing star into the black hole? How many different ways can you find?