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What year did the fear and terror land on mars?
Fear and terror, or in Greek Phobos and Deimos, are the moons of Mars, and they are still in orbit, they have not landed.
How long is a year on Phobos?
Phobos is one of the moons of Mars. Mars averages 1.52 AU from the Sun, while the Earth averages 1 AU from the Sun. So at conjunction (when Mars is closest to Earth), Mars is about .5 AU away, and at opposition (Mars on the other side of the Sun from us) Mars is about 2.5 AU away. This is an over-simplification; Mars' orbit is more eccentric than Earth's, by about 9%. Sometimes Mars is a little closer than .52 AU at conjunction, and sometimes it is a little further away. But not by much.
Which is bigger Phobos or Deimos?
Phobos, Mars' closest satellite, come from the Greek word meaning 'fear', whilst Deimos means 'panic', both following on from the Mars/War theme. Orbiting at a meagre 6000km from the surface of Mars, Phobos is the closest moon to its' parent planet in the Solar System (at least that we know of), whilst Deimos is the smallest known solar system satellite. Phobos and Deimos are both believed to be captured asteroids, due to their irregular shape and small size (Phobos having a 22.2km wide diameter, whilst Deimos is just 12.6km wide!). Both moons are, however, heavily cratered and are believed to be made up of rock and ice. Like our moon they have a coating of dust on their surfaces. Phobos' orbit is such that it rises in the west and sets in the east, often more than once in one day. However, I'm afraid there isn't realy much future left for Phobos as an independent moon of Mars. This is because in little over 50 million years it is destined to crash into Mars (with a thud) due to the planet's tidal forces lowering its orbit (presently at about 1.8cm/year). Nevertheless, it (and Deimos) have been seen by many spacecraft since it was discovered by Asaph Hall in 1877, such as the Mariner 9, Viking 1, Phobos and Phobos 2, the last of which even detected an outgassing coming from Phobos.
What year did the Soviet Union land on mars?
No one's landed on Mars yet. The Soviet Union sent out a probe however, with no one on it. Mars 2 - The first probe that we know of by the Soviet Union to "land" on Mars, the others losing the signals. Mars 2 crash landed. Mars 3 - The first successful soft landing on Mars. Signals were lost 90 seconds after landing. (1971) Mars 5 - First fully successful Soviet Union Mars mission, orbiting Mars. Returned images of Martian surface. (1974) Mars 6 - Landing fail in 1974, crashed into Mars. Others either completely missed it, we lost the signal, or they tried to go to one of Mars' moons (Phobos 1 and 2)
What year did curiosity land on Mars?
6/8//2012 Methinks
What year did sojourner rover land on mars?
July 4th 1997
What year did opportunity land on Mars?
The Mars rover Opprutunity landed on January 24, 2004 By Aj
What year did Land Rove explore Mars?
Below link under recent missions
Could an asteroid orbit a planet in such a way that it would (after many years) eventually impact the planet?
Yes. It would collide quicker if it brushed the atmosphere on each orbit.
In which year did NASA first land a spacecraft on mars?
The first NASA space craft to mars set off on August 2007 and they arrived in may 2008
What year did mariner 4 land on mars?
It didn't a small object hit it and the connection was lost. However, it did flyby Mars on July 14 and 15, 1965.
In what year did NASA first land a spacecraft on mars?
NASA's Viking 1 and Viking 2 landed on Mars in 1976.
