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Herschel vindt ster die niet zou mogen bestaan

Geplaatst op 24-08-2010 om 18u19 door Bert Carrein - 2241 keer gelezen
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De Europese ruimtetelescoop Herschel heeft een ster ontdekt die volgens de wetenschappelijke theorie niet zou kunnen bestaan. Dat heeft de Europese ruimtevaartorganisatie ESA bekendgemaakt op een symposium in Noordwijk.

De ster staat op ruim 4.200 lichtjaar van de aarde. De ESA spreekt van een 'embryonische ster', een ster die nog aan het ontstaan is. Het hemellichaam is ongeveer acht tot tien keer zo groot als onze zon en in de directe omgeving is zo veel gas en stof dat de ster nog honderden keren groter kan worden. De ster kan uitgroeien tot een van de helderste objecten in de Melkweg.

De ontdekking is opmerkelijk. Volgens de gangbare wetenschappelijke theorie kan een ster niet groter worden dan acht keer de massa van de zon. De druk op de ster zou dan zo groot worden, dat die uiteenspat. Toch zijn er al meer sterren bekend die onmogelijk groot zijn. Omdat de Herschel ziet hoe zo'n megaster ontstaat, kunnen de wetenschappers misschien achterhalen waar de fout in de theorie zit.

Bron: http://www.hln.be

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