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• Conjunction
  ...the relative positions of an observer and a planet or an observer and two planets. The observer is, of course, usually looking from the surface of the [[Eart ==Two planets==
  1 KB (216 words) - 11:03, 5 August 2019
• Solar System
  ...r System consists of the terrestrial planets, the gas giants, moons, dwarf planets, asteroids, comets, and vast amounts of dust and debris. Also, Mars. ===Major Planets===
  5 KB (802 words) - 05:37, 27 March 2021
• Links and Resources
  ==The <s>Nine</s>8 Planets== * [http://www.nineplanets.org The <s>Nine</s>8 Planets] - Bill Arnett
  3 KB (354 words) - 13:41, 20 December 2018
• Origin of Mars and its Elemental Composition
  ...imal in about another 10,000 years. These bodies in turn accumulated into planets in another 10 to 100 million years in a process that mixed planetesimals fr ...un and since planetesimals from neighboring regions mixed in forming these planets, the elemental compositions of Mars and Earth should be similar. Analysis
  2 KB (313 words) - 18:14, 10 November 2020
• Geochemistry
  ...d composition in rocks and [[soil]] found on [[Earth]], [[Mars]] and other planets.
  282 bytes (37 words) - 16:34, 17 December 2018
• Speed of light
  ...22 minutes (between about 180 to 1340 seconds depending on the position of planets and resulting distance). For two way communication (request - answer) time ...planets, for a period of time sun will be positioned directly between both planets, blocking direct communications.
  2 KB (243 words) - 08:19, 27 October 2020
• Mercury
  ...Earht's 1350 w/m2 or Mars' 600 W/m2. Beamed power could be sent to other planets in the solar system from Mercury's surface, although this might better be a ...and material from the core might be more easily accessible than for other planets.
  2 KB (296 words) - 16:31, 17 February 2023
• Sun
  Eight planets are [[orbit|orbiting]] the sun, amoung them [[Mars]] and [[Earth]].
  707 bytes (111 words) - 20:53, 5 December 2019
• Asteroids
  '''Asteroids''', also known as ''minor planets'' or ''planetoids'', are significantly-sized debris that orbit the [[Sun]].
  990 bytes (149 words) - 15:30, 17 December 2018
• Orbit
  ...h around a bigger object, attracted by its [[gravity]]. [[Mars]] and other planets are orbiting the [[Sun]] in an elliptical trajectory. Mars is orbited by tw ...ansfer between two bodies. They are used to reduce transfer times between planets and other bodies. They require more powerful engines than low energy traje
  3 KB (436 words) - 07:46, 27 August 2021
• Motivation
  ...her planets, because the occurrence of such events at the same time on two planets is extremely unlikely. While the death of Mankind is hard, the collapse of ...ear of going away empty-handed while other nations occupy the Moon and the planets drives the government to support the effort.
  5 KB (808 words) - 16:03, 10 November 2022
• Goldilocks Zone
  Thus, human effort can warm planets (and possibly cool them), adjusting the size of the Goldilocks zone. "Worlds Beyond Our Own: The Search for Habitable Planets", by Susan Sengupta.
  4 KB (645 words) - 16:04, 25 July 2020
• Astrobiology
  ...t the extreme limits of life are on Earth and possibly on extraterrestrial planets or satellites. ...strobiology is to determine if it is possible for life to survive on other planets or satellites in our solar system and beyond. Astrobiology includes resea
  8 KB (1,161 words) - 11:22, 17 December 2018
• Internet
  ...ther issue as the Sun will be blocking the Line Of Sight (LOS) between the planets, communication signals will need to be re-routed via an [[Deep Space Networ
  6 KB (894 words) - 14:09, 6 November 2020
• SpaceX
  ...ace technology, with the ultimate goal of enabling people to live on other planets."
  2 KB (258 words) - 11:51, 31 August 2021
• Information Infrastructure
  ...might be required to communicate with vehicles in transit between the two planets.
  2 KB (242 words) - 10:40, 3 January 2020
• Solar wind
  ...ll often manifest itself as [[aurora|aurorae]] in the upper atmospheres of planets with magnetic fields. The ''solar wind'' is often associated with [[Coronal
  4 KB (616 words) - 16:26, 6 May 2021
• Spacecraft Classification
  ...planet’s gravity. The spacecraft’s orbit will be designed to pass close by planets but never orbit one, instead following a larger orbit around the sun. ...ll as survive very long periods in harsh conditions in the journey between planets.
  5 KB (853 words) - 10:19, 1 January 2023
• Cobalt
  ...]] that can be found in meteoritic iron. It is more common in the core of planets than in the crust. (Note that iron meteors, are the 'core' of large astero
  2 KB (295 words) - 15:00, 4 October 2022
• Columbus Crater
  ...fed paleolakes of Terra Sirenum, Mars. Journal of Geophysical Research E: Planets DOI: 10.1029/2010JE003694</ref> These were found using an orbiting near- ...fed paleolakes of Terra Sirenum, Mars. Journal of Geophysical Research E: Planets DOI: 10.1029/2010JE003694</ref>
  5 KB (693 words) - 10:14, 18 September 2021

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