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 14 July 1790, and for several days following, crowds in the Champ de Mars celebrated the anniversary of the fall of the Bastille with the Fête de la Fédération ; Talleyrand performed a mass ; participants swore an oath of " fidelity to the nation, the law, and the king "; the King and the royal family actively participated.

On July 31, 2008, NASA announced that the Phoenix lander confirmed the presence of water on Mars, as predicted in 2002 based on data from the Odyssey orbiter.

On seeing him perform with the band Rock Candy at the Starwood in Hollywood, California, Mars suggested they have Neil join the band.

On the surface, the crew would have at their disposal 2 Dragon spacecraft with inflatable modules as habitats, 2 ERVs, 2 Mars ascent vehicles and 8 tonnes of cargo.

* Cronin Mars trilogy: As It Is On Mars ( 2001 ), Give Us This Mars ( 2003 ), and Glory Be To Mars ( 2005 ) by William Thomas Cronin

On December 12, 2007, Mars Merger Sub, Inc., merged with and into Macrovision Corporation with Macrovision as the surviving corporation.

On Mars, Mayerson buys some Chew-Z from Eldritch, who appears in holographic form.

* Mars On Earth: The Adventures of Space Pioneers in the High Arctic ( 2003 ).

* On to Mars: Colonizing a New World ( 2002 Apogee Books ), co-edited with Frank Crossman.

* On to Mars 2: Exploring and Settling a New World ( 2005 Apogee Books ), co-edited with Frank Crossman.

For example, a written account of some of these debates is available in On to Mars: Colonizing a New World, as a joint article, " Do Indigenous Martian Bacteria have Precedence over Human Exploration?

On August 21 – 23, 1924, Mars entered an opposition closer to Earth than any time in a century before or since.

On Mars, he constructs his image of the perfect haunted mansion, complete with mechanical creatures, creepy soundtracks, and thousands of tons of poison to kill every living thing in the surrounding area.

On Mars, former Fourth Expedition member Sam Parkhill has opened a hot-dog stand and is expecting a huge rush of business as soon as the next wave of settlers and workers arrives from Earth.

On board the rocket is his old commander, Captain Wilder, ( also from the earlier stories about the Fourth Expedition ) returning to Mars after twenty years exploring the outer solar system.

On Mars he has built his image of the perfect haunted mansion, replicating the building from Edgar Allan Poe's short story " The Fall of the House of Usher ", complete with mechanical creatures, creepy soundtracks and the extermination of all life in the surrounding area.

* Rock Varnish As A Habitat For Extant Life On Mars

On August 24, 1987, the five major objects closest to the Earth — the Sun, the Moon, Mercury, Venus, and Mars — were within approximately five degrees of one another, the Sun setting first, followed by Mars, Venus, Mercury, and the Moon, in that order, within 20 minutes.

On 27 August 1783, their hydrogen balloon was launched from the Champ de Mars in Paris.

On human nature, Boethius says that humans are essentially good and only when they give in to “ wickedness ” do they “ sink to the level of being an animal .” On justice, he says criminals are not to be abused, rather treated with sympathy and respect, using the analogy of doctor and patient to illustrate the ideal relationship between prosecutor and criminal.

The possibility of linking humans with earlier apes by descent only became clear after 1859 with the publication of Charles Darwin's On the Origin of Species.

On announcing the discovery, scientists suggested that the " finds demonstrate the presence of a well-established musical tradition at the time when modern humans colonized Europe ".

On generation in or exposure of biological systems to these radicals, they can cause damage to cells, including those in humans, where they react with DNA, lipids, and proteins.

On the other hand, ideas about an algorithm can be communicated to humans without the precision required for execution by using pseudocode, which interleaves natural language with code written in a programming language.

In a 2001 review of Midas Dekkers ' Dearest Pet: On Bestiality, Singer argues that sexual activities between humans and animals that result in harm to the animal should remain illegal, but that " sex with animals does not always involve cruelty " and that " mutually satisfying activities " of a sexual nature may sometimes occur between humans and animals, and that writer Otto Soyka would condone such activities.

On the other hand, praxis involves thinking, but always with an aim to desired actions, whereby humans cause change or movement themselves for their own ends.

On the basis of the analysis of the skeletal remains of the consumed animals he concluded that hominids and early humans were mostly scavengers, not hunters, and this idea is popular among some archaeologists and paleoanthropologists.

Donald like Plato ( and Aristotle, especially in On Memory and Recollection ), emphasizes the peculiarity in humans of voluntary initiation of a search through one's mental world.

On the other hand, if the planet is already inhabited, much less benign consequences ensue: indeed, some science fiction authors have used the colonization of alien planets by humans, or the colonization of Earth by aliens, to explore the real-world issues surrounding the phenomenon.

On the contrary, new empiricism shows how mathematics, although constructed by humans, follows rules and principles that will be agreed on by all who participate in the process, with the result that everyone practicing mathematics comes up with the same answer — except in those areas where there is philosophical disagreement on the meaning of fundamental concepts.

On 21 November 1783, the first free flight by humans was made by Pilâtre, together with an army officer, the marquis d ' Arlandes.

As for his philosophical convictions, we have an interesting, probably authentic fragment of one of his writings ( On sacrifices ) where he expresses his view that God, who is the most beautiful being, cannot be influenced by prayers or sacrifices and has no wish to be worshipped by humans, but can be reached by a spiritual procedure involving nous ( intellect ), because he himself is pure nous and nous is also the greatest faculty of humankind.

On top of it all, modern science has invented many artificial ways to prolong human life ( for example, there are TV ads for organ transplants ), and longevity among humans is now a fact with life expectancy having climbed to over the 100-year mark.

On a more practical plane, Hippolytus explained that the lowest of the three decks was for wild beasts, the middle for birds and domestic animals, and the top level for humans, and that male animals were separated from the females by sharp stakes so that there would be no breeding on board.

* On the third day, humans were given intellect, language and the senses.

On the other extreme are accelerated aging diseases, rare in humans.

On the planet were placed humans and Gowachin, with an odd mix of modern and old technology.

On the island, the various birds speak bird-language, described as being related to fairy language which can be understood by young humans, who used to be birds.

On 29 April 2009, Nitschke said: " It seems we demand humans to live with indignity, pain and anguish whereas we are kinder to our pets when their suffering becomes too much.

On Aristotle's view, the universal humanity is the same in all humans ( i. e., all humans have that exact same type in common ); and this allows us to form a concept of humanity that applies to all humans.