A relatively recent role for amateur astronomers is searching for overlooked phenomena ( e. g., Kreutz Sungrazers ) in the vast libraries of digital images and other data captured by Earth and space based observatories, much of which is available over the Internet.

Old Earth is noted as being on the other side of the galaxy.

The apparent position of a star or other very distant object is the direction in which it is seen by an observer on the moving Earth.

Brahe did not accept heliocentrism because Galileo's observations only confirmed that other planets, specifically Venus, revolved around the Sun, not Earth.

Although it has been known for a while that the Black Sea and the Sea of Marmara flow into each other in an example of a density flow, findings of a study by the University of Leeds in August 2010 reveal that there is in fact an underwater channel of high density water flowing across the floor of the Bosphorus ( caused by the difference in density of the two seas ), which would be the sixth largest river on Earth if it were to be on land.

There are more carbohydrates on Earth than any other known type of biomolecule ; they are used to store energy and genetic information, as well as play important roles in cell to cell interactions and communications.

The study of plants is vital because they are a fundamental part of life on Earth, which generates the oxygen and food that allow humans and other life forms to exist.

The stars within an asterism rarely have any substantial astrophysical relationship to each other, and their apparent proximity when viewed from Earth disguises the fact that they are far apart, some being much farther from Earth than others.

In the class of planets would be Mercury, Venus, the Earth, and all the other planets that there might be in the universe.

New atoms are also naturally produced on Earth as radiogenic daughter isotopes of ongoing radioactive decay processes such as alpha decay, beta decay, spontaneous fission, cluster decay, and other rarer modes of decay.

On Earth ( and elsewhere ), trace amounts of various elements continue to be produced from other elements as products of natural transmutation processes.

However, even Walter Alvarez has acknowledged that there were other major changes on Earth even before the impact, such as a drop in sea level and massive volcanic eruptions that produced the Indian Deccan Traps, and these may have contributed to the extinctions.

While only Revelation speaks of a period of a thousand years for Christ ’ s rule on Earth, there are numerous other prophecies in both testaments concerning a future age of peace.

" In addition, the element Earth is associated with Budha or Mercury who represents communication, business, mathematics and other practical matters.

The primary and secondary have a period of 80 years and will be closest to each other as seen from Earth in 2037 and 2038.

On other planets and moons that experience more-active surface geological processes, such as Earth, Venus, Mars, Europa, Io and Titan, visible impact craters are less common because they become eroded, buried or transformed by tectonics over time.

On Earth, the recognition of impact craters is a branch of geology, as opposed to astronomy on other worlds.

The Instrumentality of Mankind rules Earth and goes on to control other planets later inhabited by humanity.

The two parents are commonly identified as Sky ( usually male ) and Earth ( usually female ) who in the primeval state were so tightly bound to each other that no offspring could emerge.

In fact, although the Copernican heliocentric model is often described as " demoting " Earth from its central role it had in the Ptolemaic geocentric model, neither Copernicus nor other 15th-and 16th-century scientists and philosophers viewed it as such.

Clark Kent, on the other hand, has no idea what he is going to do with his life while bewildered by his powers, and his uncertainty as to why he was sent to Earth.

However, there are other forces changing the rotation rate of the Earth.

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.

The term " Bronze Age " ultimately derives from the Ages of Man, the stages of human existence on the Earth according to Greek mythology.

Earth is one of the four classical elements in ancient Greek philosophy and science.

In Classical Greek and Roman myth, various goddesses represented the Earth, seasons, crops and fertility, including Demeter and Persephone ; Ceres ; the Horae ( goddesses of the seasons ), and Proserpina ; and Hades ( Pluto ) who ruled the souls of dead in the Underworld.

In Greek mythology, Delphi was the site of the Delphic oracle, the most important oracle in the classical Greek world, and a major site for the worship of the god Apollo after he slew the Python, a dragon who lived there and protected the navel of the Earth.

An extremophile ( from Latin meaning " extreme " and Greek () meaning " love ") is an organism that thrives in physically or geochemically extreme conditions that are detrimental to most life on Earth.

From the lifetime of the Greek philosopher Anaxagoras in the 5th century BCE to the 14th century CE, earthquakes were usually attributed to " air ( vapors ) in the cavities of the Earth.

The paradigm of a spherical Earth was developed in Greek astronomy, beginning with Pythagoras ( 6th century BC ), although most Pre-Socratics retained the flat Earth model.

Some ancient authorities in the doxographic tradition credited the Greek philosophers Pythagoras, in the 6th century BC, and Parmenides, in the 5th, with recognizing that the Earth is spherical.

Geology ( from the Greek γῆ, gê, " earth " and λόγος, logos, " study ") is the science comprising the study of solid Earth, the rocks of which it is composed, and the processes by which they evolve.

Gaia philosophy ( named after Gaia, Greek goddess of the Earth ) is a broadly inclusive term for related concepts that living organisms on a planet will affect the nature of their environment in order to make the environment more suitable for life.

In ancient times, the idea of subterranean realms seemed arguable, and became intertwined with the concept of " places " such as the Greek Hades, the Nordic svartalfheim, the Christian Hell, and the Jewish Sheol ( with details describing inner Earth in Kabalistic literature, such as the Zohar and Hesed L ' Avraham ).

The Greek letter λ ( lambda ), is used to denote the location of a place on Earth east or west of the Prime Meridian.

Millennialism ( from millennium, Latin for " thousand years "), or chiliasm in Greek, is a belief held by some Christian denominations that there will be a Golden Age or Paradise on Earth in which " Christ will reign " for 1000 years prior to the final judgment and future eternal state ( the " World to Come " of the New Heavens and New Earth ).

In Greek mythology, Nereus ( Νηρεύς ) was the eldest son of Pontus ( the Sea ) and Gaia ( the Earth ), a Titan who with Doris fathered the Nereids, with whom Nereus lived in the Aegean Sea.

In Wicca, ( especially Dianic Wicca ) the concept of an Earth or Mother Goddess, similar to the Greek Gaia, is emphasized.

Such views have also led many pagans to revere the planet Earth as Mother Earth, who is often referred to as Gaia after the ancient Greek goddess of the Earth.

The Omphalos hypothesis was named after the title of an 1857 book, Omphalos by Philip Henry Gosse, in which Gosse argued that in order for the world to be " functional ", God must have created the Earth with mountains and canyons, trees with growth rings, Adam and Eve with hair, fingernails, and navels ( omphalos is Greek for " navel "), and that therefore no evidence that we can see of the presumed age of the earth and universe can be taken as reliable.

" it is revealed that the classical Greek and Roman gods were actually a race of advanced beings who had visited Earth thousands of years ago.

Selenium ( Greek σελήνη selene meaning " Moon ") was discovered in 1817 by Jöns Jakob Berzelius, who noted the similarity of the new element to the previously-known tellurium ( named for the Earth ).