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How Does NASA Determine if an Asteroid Could Hit or is Around Earth's Orbit?
This blog post discusses how NASA determines how an asteroid could hit the Earth's orbit. -
How Do Planets Actually Form?
Based on the understanding we tend to presently have of the cosmos, we are ready to conclude that planets kind from identical dirt and gas material that forms stars, observed as nebulae. Gravity attracts all this material to the identical point, pressing and increasing its temperature and density, forming a star. -
Apollo 7-17 poster - flown artifacts of all Apollo missions
Each artifact was flown on its respective Apollo flight - the Apollo 15 beta cloth is lunar dust stained (visible under a 60x microscope) and from the personal collection of Dave Scott.