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.
No. Liquid metallic hydrogen only forms when hydrogen is subjected  to extreme pressure. Hydrogen is present in trace amounts in  Earth's atmosphere in gas form, under low pâ¦ressure. The core is  composed primarily of iron. Liquid metallic hydrogen likely exists  in the gas giants Jupiter and Saturn.