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Phobos (Ancient Greek: Φόβος, lit. 'flight, fright', [1] pronounced, Latin: Phobus) is the god and personification of fear and panic in Greek mythology. Phobos was the son of Ares and Aphrodite, and the brother of Deimos. He does not have a major role in mythology outside of being his father's attendant. [2]
Asaph Hall discovered Deimos on 12 August 1877 at about 07:48 UTC and Phobos on 18 August 1877, at the US Naval Observatory (the Old Naval Observatory in Foggy Bottom) in Washington, D.C., at about 09:14 GMT (contemporary sources, using the pre-1925 astronomical convention that began the day at noon, [16] give the time of discovery as 11 August ...
The English suffixes -phobia, -phobic, -phobe (from Greek φόβος phobos, "fear") occur in technical usage in psychiatry to construct words that describe irrational, abnormal, unwarranted, persistent, or disabling fear as a mental disorder (e.g. agoraphobia), in chemistry to describe chemical aversions (e.g. hydrophobic), in biology to describe organisms that dislike certain conditions (e.g ...
Human exploration of Deimos could serve as a catalyst for the human exploration of Mars. Recently, it was proposed that the sands of Deimos or Phobos could serve as a valuable material for aerobraking in the colonization of Mars. [47] See Phobos for more detail. ISRO's Mars Orbiter Mission captured the first pictures of the far side on Deimos.
In Ovid's Metamorphoses, Phobetor (Ancient Greek: Φοβήτωρ; [1] 'Frightener' from Ancient Greek: φόβος, phobos, 'fear' 'panic'), [2] so called by men, or Icelos (Ancient Greek: Ἴκελος; 'Like'), [3] so called by the gods, is one of the thousand sons of Somnus (Sleep, the Roman counterpart of Hypnos). He appeared in dreams "in ...
The Phobos monolith (right of center, casting long shadow) as taken by the Mars Global Surveyor (MOC Image 55103, 1998). The location of the monolith (HiRISE image PIA10368) The Phobos monolith is a large rock on the surface of Mars' moon Phobos. [1] It is a boulder, about 85 m (279 ft) across and 90 m (300 ft) tall.
Given Phobos' irregular shape and assuming that it is a pile of rubble (specifically a Mohr–Coulomb body), it will eventually break up due to tidal forces when it reaches approximately 2.1 Mars radii. [60] When Phobos is broken up, it will form a planetary ring around Mars. [61] This predicted ring may last from 1 million to 100 million years.
There are two models for the age of Stickney, based on the differing possible dates at which Phobos began to orbit around Mars. If Phobos has been orbiting for 4.3 Ga (billion years) then Stickney formed 4.2 Ga ago, but if Phobos has only been orbiting for 3.5 Ga then it formed 2.6 Ga ago. [4]