Just under five hours later, on the CSM's 65th orbit around the Moon, its Service Propulsion System main engine was reignited to propel the craft on a trajectory that would return it to Earth.

This interdisciplinary field encompasses the search for habitable environments in our Solar System and habitable planets outside our Solar System, the search for evidence of prebiotic chemistry, laboratory and field research into the origins and early evolution of life on Earth, and studies of the potential for life to adapt to challenges on Earth and in outer space.

* Clouds and the Earth's Radiant Energy System, an on-going NASA meteorological experiment, part of NASA's Earth Observing System ( EOS ) program

Due to the movement of the Earth around the Earth-Moon barycenter, the apparent path of the Sun wobbles slightly, with a period of about one month ; due to perturbations by the other planets of the Solar System, the Earth-Moon barycenter wobbles slightly around a mean position in a complex fashion.

Also, the Earth does not actually orbit the Sun, but the Solar System barycenter, therefore an alternate definition of the ecliptic is the mean plane of the orbit of Earth-Moon barycenter around the Solar System barycenter.

The Global Positioning System ( GPS ) is a space-based satellite navigation system that provides location and time information in all weather, anywhere on or near the Earth, where there is an unobstructed line of sight to four or more GPS satellites.

Many astronomers, geologists and biologists believe that exploration of the Solar System provides knowledge that could not be gained by observations from Earth's surface or from orbit around Earth.

Although various Spaceguard projects monitor the Solar System for objects that might come dangerously close to Earth, current asteroid deflection strategies are crude and untested.

However, either fission or fusion technologies can in principle achieve velocities far higher than needed for Solar System exploration, and fusion energy still awaits practical demonstration on Earth.

Hutton subsequently read an abstract of his dissertation Concerning the System of the Earth, its Duration and Stability to Society meeting on 4 July 1785, which he had printed and circulated privately.

Though Hutton circulated privately a printed version of the abstract of his Theory ( Concerning the System of the Earth, its Duration, and Stability ) which he read at a meeting of the Royal Society of Edinburgh on 4 July 1785 ; the full account of his theory as read at the 7 March 1785 and 4 April 1785 meetings did not appear in print until 1788.

Abstract of a dissertation read in the Royal Society of Edinburgh, upon the seventh of March, and fourth of April, MDCCLXXXV, Concerning the System of the Earth, Its Duration, and Stability.

Due to the volatility of elemental nitrogen and its common compounds with hydrogen and oxygen, nitrogen is far less common on the rocky planets of the inner Solar System, and it is a relatively rare element on Earth as a whole.

The reason for neon's relative scarcity on Earth and the inner ( terrestrial ) planets, is that neon forms no compounds to fix it to solids, and is highly volatile, therefore escaping from the planetesimals under the warmth of the newly-ignited Sun in the early Solar System.

A near-Earth object ( NEO ) is a Solar System object whose orbit brings it into close proximity with the Earth.

* Data collected from the Space Fence's sensors would potentially feed into the Joint Space Operations Center Mission System, which is used to track objects orbiting the Earth, monitor space weather and assess foreign launches.

Yet the International Earth Rotation and Reference Systems Service and the International Astronomical Union have defined a framework called the International Terrestrial Reference System.

Ancient cultures saw the Earth as the centre of the Solar System or universe ( geocentrism ).

* Earth in the Solar System

The actions Q took in sending the Enterprise D to System J-25 — and thus maintaining the time loop, are expanded upon in the Star Trek novels as being partially ( though indirectly ) the reason for the existence of the Mirror Universe, explaining that Zefram Cochrane attempted to warn Earth and the worlds that would become part of the Federation about the Borg after First Contact.

In our age of Science and Angst it seems to me more brave to stay on Earth and explore inner man than to fly far from the sphere of our sorrow and explore outer space ''.

In addition, the individual Ph. D. programs in Psychology ( 36th of 240 ), Earth Science ( 17th of 108 ), and Criminology ( 12th ) also earned high rankings.

* Earth Science News, Maps, Dictionary, Articles, Jobs

* Peter Bunyard ( 1996 ), Gaia in Action: Science of the Living Earth

* Robert Hazen, Clarence Robinson Professor of Earth Science, and author

* What Curiosity in the Structure: The Hollow Earth in Science.

The Jadavpur campus houses most of the departments of the three faculties — Engineering, Science and Arts — in addition to the Jadavpur University Central Library and the Blue Earth Workshop.

It also acts as a relay for communications between the Mars Exploration Rovers, Mars Science Laboratory, and the Phoenix lander to Earth.

Another presentation will be made by Dr. Beda Hofmann, Head of the Earth Science Dept.

* A Production of Amino Acids Under Possible Primitive Earth Conditions by Stanley L. Miller, Science, v. 117, May 15, 1953

Physical geography and Earth Science journals communicate and document the results of research carried out in universities and various other research institutions.

In the Engineering Quad, a trinity of sculptures by Michael Heizer, collectively entitled 45 Degrees, 90 Degrees, 180 Degrees, are flanked by Abercrombie Laboratory, the Cox Building, and the Mechanical Laboratory, housing the Electrical, Mechanical, and Earth Science / Civil Engineering departments, respectively.

Specifically, Stanford was ranked in Business, in Education, in Engineering, in Medicine, in Law, in Biological Sciences, in Chemistry, in Computer Science, in Earth Sciences, in Mathematics, in Physics, in Statistics, in Economics, in English, in History, in Political Science, in Psychology, in Sociology.

Episode 422 of Mystery Science Theater 3000, produced in the 1992 – 93 season, featured The Day the Earth Froze.

* Department of Earth Science

* Science, includes the departments and programs of Biochemistry and Microbiology, Biology, Chemistry, Earth and Ocean Sciences, Mathematics and Statistics, and Physics and Astronomy.

The School of Earth & Ocean Science also collaborate with the VENUS and NEPTUNE research institutes.

* Federation of Earth Science Information Partners ( ESIP Federation )

In the United States, these included the Scripps Institution of Oceanography in 1892, Woods Hole Oceanographic Institution in 1930, Virginia Institute of Marine Science in 1938, Lamont-Doherty Earth Observatory at Columbia University, and the School of Oceanography at University of Washington.

* Earth Science

* Earth Science

* The Ancient Science of Geomancy: Living in Harmony with the Earth by Nigel Pennick

* The Ancient Science of Geomancy: Man in Harmony with the Earth by Nigel Pennick

The Geology of Yemen: An Annotated Bibliography of Yemen's Geology, Geography and Earth Science.