Organiese materiaal op Mars gevind
Organiese materiaal op Mars gevind

Organiese materiaal op Mars gevind

Die molekules is volgens Nasa in die boonste lae van die grond, die boonste vyf sentimeter, gevind.
Organiese molekules in rots van sowat drie miljard jaar gelede is op Mars gevind.

Nasa se robottuig Curiosity het dié ontdekking op die planeet gemaak. Dit is ten spyte van buitengewone strawwe kondisies op die oppervlak wat organiese molekules afbreek.

Volgens Nasa is die molekules in die boonste lae van die grond, die boonste vyf sentimeter, gevind. Dit sou wees uit ’n tyd toe dié planeet nog bewoonbaar sou kon wees.

Op volgende sendings na Mars, soos Mars2020, sal aansienlik dieper geboor kan word.

Organiese molekules bevat koolstof en waterstof, maar kan ook ander elemente soos suurstof en stikstof bevat. Dit word met lewe verbind.

Daar is aansienlike aanduidings dat Mars voorheen lopende water gehad het. Daar was onder meer ’n meer in die Gale-krater, waar Curiosity is.

Die ouderdom kon bepaal word deur te kyk hoeveel kraters daar is. Hoe meer daar is, hoe ouer is die area.

Is daar tekens van lewe op Mars?

“Ons weet nie, maar dié resultate wys ons is op die regte spoor,” het dr. Michael Meyer, Nasa se Mars-wetenskaplike, in ’n verklaring gesê.

Die Mars2020-sending sal die eerste wees wat aktief na mikrobiese lewe op die planeet sal soek en die aanvoorwerk vir menslike ontdekking sal doen. Dit sal in Februarie 2021 daar aankom.

Danksy kameras wat die landing gaan opneem, sal die mensdom vir die eerste keer kan sien hoe ’n tuig op ’n ander planeet land.

Net soos met die vorige tuig, Curiosity, sal dié tuig met ’n ruimtehyskraan op die planeet neergesit word. Maar die verskil is dat alles gesien en gehoor sal kan word, lui ’n mediaverklaring.

Volgens Nasa sal die eerste toetse gedoen word om suurstof uit die atmosfeer te maak, en daar sal aktief na waterbronne gesoek word. Die omgewing sal bestudeer word om toestande vir toekomstige menslike sendings na die planeet te ondersoek.

Die eerste wetenskaplike doelwit is om te soek na tekens van oerlewe op die planeet, en of daar dalk steeds mikrobiese lewe is. Die tweede is om die klimaat te karteer en die derde is om die geologie van die planeet te bepaal. - Netwerk24

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Katima Mulilo: 19° | 37° Rundu: 17° | 33° Eenhana: 18° | 33° Oshakati: 20° | 31° Ruacana: 19° | 33° Tsumeb: 17° | 29° Otjiwarongo: 16° | 28° Omaruru: 18° | 31° Windhoek: 17° | 28° Gobabis: 17° | 28° Henties Bay: 16° | 19° Wind speed: 24km/h, Wind direction: S, Low tide: 10:54, High tide: 04:57, Low Tide: 22:58, High tide: 17:16 Swakopmund: 15° | 17° Wind speed: 29km/h, Wind direction: SW, Low tide: 10:52, High tide: 04:55, Low Tide: 22:56, High tide: 17:14 Walvis Bay: 16° | 22° Wind speed: 33km/h, Wind direction: SW, Low tide: 10:52, High tide: 04:54, Low Tide: 22:56, High tide: 17:13 Rehoboth: 18° | 29° Mariental: 22° | 32° Keetmanshoop: 21° | 34° Aranos: 21° | 31° Lüderitz: 15° | 29° Ariamsvlei: 23° | 34° Oranjemund: 15° | 21° Luanda: 27° | 30° Gaborone: 20° | 32° Lubumbashi: 17° | 24° Mbabane: 15° | 23° Maseru: 12° | 28° Antananarivo: 16° | 27° Lilongwe: 17° | 29° Maputo: 20° | 28° Windhoek: 17° | 28° Cape Town: 17° | 23° Durban: 21° | 25° Johannesburg: 18° | 28° Dar es Salaam: 26° | 32° Lusaka: 18° | 30° Harare: 15° | 31° Currency: GBP to NAD 23.96 | EUR to NAD 20.52 | CNY to NAD 2.63 | USD to NAD 19.03 | DZD to NAD 0.14 | AOA to NAD 0.02 | BWP to NAD 1.33 | EGP to NAD 0.39 | KES to NAD 0.14 | NGN to NAD 0.01 | ZMW to NAD 0.74 | ZWL to NAD 0.04 | BRL to NAD 3.8 | RUB to NAD 0.2 | INR to NAD 0.23 | USD to DZD 134.34 | USD to AOA 832.63 | USD to BWP 13.71 | USD to EGP 47.35 | USD to KES 130.98 | USD to NGN 1415.13 | USD to ZAR 19.03 | USD to ZMW 24.97 | USD to ZWL 321 | Stock Exchange: JSE All Share Index 73909.5 Up +0.41% | Namibian Stock Exchange (NSX) Overall Index 1516.02 Down -0.13% | Casablanca Stock Exchange (CSE) MASI 12981.98 Up +0.34% | Egyptian Exchange (EGX) 30 Index 28224.37 Down -2.87% | Botswana Stock Exchange (BSE) DCI Same 0 | NSX: MTC 7.75 SAME | Anirep 8.99 SAME | Capricorn Investment group 17.34 SAME | FirstRand Namibia Ltd 49 DOWN 0.50% | Letshego Holdings (Namibia) Ltd 4.1 UP 2.50% | Namibia Asset Management Ltd 0.7 SAME | Namibia Breweries Ltd 31.49 UP 0.03% | Nictus Holdings - 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Nam 2.22 SAME | Oryx Properties Ltd 12.1 UP 1.70% | Paratus Namibia Holdings 11.99 SAME | SBN Holdings 8.45 SAME | Trustco Group Holdings Ltd 0.48 SAME | B2Gold Corporation 47.34 DOWN 1.50% | Local Index closed 677.62 UP 0.12% | Overall Index closed 1534.6 DOWN 0.05% | Osino Resources Corp 19.47 DOWN 2.41% | Commodities: Gold US$ 2 211.71/OZ UP +0.96% | Copper US$ 3.98/lb DOWN -0.0015 | Zinc US$ 2 447.90/T DOWN -0.35% | Brent Crude Oil US$ 87.06/BBP UP +0.78% | Platinum US$ 898.08/OZ UP +0.36%