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- Q2620043 subject Q8543130.
- Q2620043 abstract "REDIRECT Template:Infobox Mars craterHuygens is an impact crater on Mars named in honour of the Dutch astronomer, mathematician and physicist Christiaan Huygens.The crater is approximately 456 km (283 mi) in diameter and can be found at 304.4°W 14.0°S, in the Iapygia quadrangle.Scientists were delighted to see branched channels in pictures taken with spacecraft that were sent in orbit around Mars. The existence of these channels is strong evidence that much water once flowed on the surface of the planet. Simple organisms may have once lived where water once was. An excellent group of these channels is shown in the picture below from the rim of Huygens taken with THEMIS.Carbonates (calcium or iron carbonates) were discovered in a crater on the rim of Huygens. The impact on the rim exposed material that had been dug up from the impact that created Huygens. These minerals represent evidence that Mars once had a thicker carbon dioxide atmosphere with abundant moisture. Carbonates of these kinds only form when there is a lot of water. They were found with the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) instrument on the Mars Reconnaissance Orbiter. Earlier, the instrument had detected clay minerals. The carbonates were found near the clay minerals. Both of these minerals form in wet environments. It is supposed that billions of years ago Mars was much warmer and wetter. At that time, carbonates would have formed from water and the carbon dioxide-rich atmosphere. Later the deposits of carbonate would have been buried. The double impact has now exposed the minerals. Earth has vast carbonate deposits in the form of limestone.".
- Q2620043 diameter "456000.0".
- Q2620043 location Q111.
- Q2620043 thumbnail Martian_impact_crater_Huygens_based_on_THEMIS_Day_IR.png?width=300.
- Q2620043 wikiPageWikiLink Q111.
- Q2620043 wikiPageWikiLink Q1463003.
- Q2620043 wikiPageWikiLink Q181699.
- Q2620043 wikiPageWikiLink Q183160.
- Q2620043 wikiPageWikiLink Q23757.
- Q2620043 wikiPageWikiLink Q2382875.
- Q2620043 wikiPageWikiLink Q39599.
- Q2620043 wikiPageWikiLink Q4026824.
- Q2620043 wikiPageWikiLink Q497546.
- Q2620043 wikiPageWikiLink Q55818.
- Q2620043 wikiPageWikiLink Q5750336.
- Q2620043 wikiPageWikiLink Q837500.
- Q2620043 wikiPageWikiLink Q8543130.
- Q2620043 diameter "456.0".
- Q2620043 name "Huygens".
- Q2620043 type Place.
- Q2620043 type Crater.
- Q2620043 type Location.
- Q2620043 type NaturalPlace.
- Q2620043 type Place.
- Q2620043 type Thing.
- Q2620043 comment "REDIRECT Template:Infobox Mars craterHuygens is an impact crater on Mars named in honour of the Dutch astronomer, mathematician and physicist Christiaan Huygens.The crater is approximately 456 km (283 mi) in diameter and can be found at 304.4°W 14.0°S, in the Iapygia quadrangle.Scientists were delighted to see branched channels in pictures taken with spacecraft that were sent in orbit around Mars.".
- Q2620043 label "Huygens (crater)".
- Q2620043 depiction Martian_impact_crater_Huygens_based_on_THEMIS_Day_IR.png.
- Q2620043 name "Huygens".