with The Social Conquest of Earth (2012) and The Meaning of Human Existence (2014). Half-Earth proposes that half of the Earth's surface should be designated...

An orc (sometimes spelt ork; /ɔːrk/), in J. R. R. Tolkien's Middle-earth fantasy fiction, is a race of humanoid monsters, which he also calls "goblin"...

Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is enabled by Earth being an ocean world, the only one...

North-South Northern Hemisphere: The half that lies north of the Equator. This hemisphere contains approximately 68% of Earth's landmass and is home to about...

inhabit. Half-elves became known in modern times mainly through J. R. R. Tolkien's Middle-earth writings but have origins in Norse mythology. A half-elf appeared...

all known dwarf planets. Its surface gravity is about one sixth of Earth's, about half of that of Mars, and the second highest among all Solar System moons...

Earth is an archaic and scientifically disproven conception of the Earth's shape as a plane or disk. Many ancient cultures subscribed to a flat-Earth...

thousand feet within the Earth. At its core are the remains of a magma chamber that cooled slowly and crystallized beneath the Earth's surface. The solidified...

extinction crisis. The idea became the basis for his book Half-Earth (2016) and for the Half-Earth Project of the E.O. Wilson Biodiversity Foundation. Wilson's...

Combine are draining Earth's oceans and resources to be used on other Combine worlds. The heart of the Combine's command over Earth in Half-Life 2 is the Citadel...

The age of Earth is estimated to be 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%). This age may represent the age of Earth's accretion, or core formation...

Earth Day is an annual event on April 22 to demonstrate support for environmental protection. First held on April 22, 1970, it now includes a wide range...

Quinlan, a half-fae, half-human girl and her life on Midgard. As of January 2024[update], the series includes three books, House of Earth and Blood, House...

six alkaline earth metals are present in the Earth's crust and the solar system at varying concentrations, dependent upon the nuclides' half lives and,...

The Hollow Earth is a concept proposing that the planet Earth is entirely hollow or contains a substantial interior space. Notably suggested by Edmond...

half of the planet Earth that lies west of the Prime Meridian—which crosses Greenwich, London, England—and east of the 180th meridian. The other half...

between the Earth and the Moon, of 1.022 km/s (0.635 miles/s, 2,286 miles/h), the Moon covers a distance approximately its diameter, or about half a degree...

The flag of Earth is a concept of a possible flag design meant to symbolize the planet Earth, humankind, or a possible world government. "Citizen of the...

considerably greater than that of Earth, though it has since been determined to be a typical volatile-rich planet weighing just under half that mass. Kepler-10c was...

Spaceship Earth (or Spacecraft Earth or Spaceship Planet Earth) is a worldview encouraging everyone on Earth to act as a harmonious crew working toward...

death, and when he died his powers destroyed the half Earth. In the universe designated as Earth-9997 (Earth X), Nate Grey was eventually infected by the...

67, ISBN 978-3-11-085007-9 Halliday, William D. (8 September 2018). ""Half-Earth: Our Planet's Fight for Life" by Edward O. Wilson, 2017. [book review]"...

in an update to Half-Life a month later. OS X and Linux ports of the Windows game were released through Steam in August 2013. Earth's Special Forces –...

region of France, Martin Blumenson said, The hedgerow is a fence, half earth, half hedge. The wall at the base is a dirt parapet that varies in thickness...

Pseudoscientific beliefs in a flat Earth are promoted by a number of organizations and individuals. The claims of modern flat Earth proponents are not based on...

The smooth earth snake (Virginia valeriae) is a species of nonvenomous natricine colubrid snake native to the eastern half of the United States. The specific...

A low Earth orbit (LEO) is an orbit around Earth with a period of 128 minutes or less (making at least 11.25 orbits per day) and an eccentricity less than...

for an unknown future job. In Half-Life 2 he is re-awoken from stasis by the G-man and meets up with the resistance on Earth against the Combine. The resistance...

Earth's rotation or Earth's spin is the rotation of planet Earth around its own axis, as well as changes in the orientation of the rotation axis in space...

The history of Earth concerns the development of planet Earth from its formation to the present day. Nearly all branches of natural science have contributed...