Objects closer to Earth than the L1 point are controlled by Earth's gravity. Objects beyond the L1 point are controlled by the Sun. When J002E3 came close to the L1 point in April 2002, the object passed throuhgh L1--like a portal--from a Sun-orbit to an Earth-orbit.
In the top 20km of the Earth's crust, the conditions are right to produce a nearly inexhaustible supply of hydrogen, said Prof Freund. Studies by the team of common rock types such as granite and olivine have revealed extraordinarily high levels of trapped hydrogen.
Earth has a great capacity for regeneration. As Mahatma Gandhi put it, Earth has enough to satisfy every man's need, but not every man's greed.. From 1970 onwards, the world has been in an ecological overshoot; our demand on environmental resources is exceeding the earth's supply capacity.ater, Electricity and Gas Conservation Tips. Think of the little ways in which you can save water, electricity and gas; share your ideas with friends and family. 1  Carpooling is a great way to save fuel. 2  Whether going to work, or for shopping, make it a group affair.