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Global • 2026-11-02, 09:37 GMT • ~1 min read

Comets may not have seeded life on Earth, new simulations suggest

نئی تحقیق: شہابوں نے زمین پر زندگی کی بنیاد شاید نہیں رکھی

नए सिमुलेशन: धूमकेतुओं ने पृथ्वी पर जीवन की शुरुआत शायद नहीं की

Comets may not have seeded life on Earth, new simulations suggest

Key points

اہم نکات

मुख्य बातें

  • The long-held theory that comets delivered the chemical building blocks of life to Earth may be wrong, according to new computer simulations from the University of Cambridge, published in the journal Scientific Reports.
  • The team simulated early Earth being struck by comets 100,000 times and found that, on average, no impact successfully delivered fragile organic molecules such as hydrogen cyanide, because the heat and force of impact destroyed them.
  • The idea that life's ingredients came from space dates back more than a century, but researchers say asteroids or chemistry on Earth itself are now likelier explanations — though comets cannot be ruled out entirely.
  • کیمبرج یونیورسٹی کی نئی کمپیوٹر سمولیشن کے مطابق یہ پرانا نظریہ غلط ہو سکتا ہے کہ شہابوں نے زمین پر زندگی کے کیمیائی اجزا پہنچائے تھے۔ یہ تحقیق سائنٹیفک رپورٹس جریدے میں شائع ہوئی ہے۔ ٹیم نے ابتدائی زمین پر شہابوں کے ٹکرانے کی ایک لاکھ بار سمولیشن کی اور پایا کہ اوسطاً کوئی ٹکراؤ ہائیڈروجن سائنائیڈ جیسے نازک نامیاتی مالیکیولز کامیابی سے نہیں پہنچا سکا، کیونکہ ٹکراؤ کی گرمی اور شدت نے انہیں تباہ کر دیا۔ یہ خیال کہ زندگی کے اجزا خلا سے آئے، ایک صدی سے زیادہ پرانا ہے، لیکن محققین کا کہنا ہے کہ اب سیارچے یا زمین کی اپنی کیمسٹری زیادہ ممکنہ وضاحت ہیں — اگرچہ شہابوں کو مکمل طور پر خارج نہیں کیا جا سکتا۔
  • कैम्ब्रिज विश्वविद्यालय के नए कंप्यूटर सिमुलेशन के अनुसार यह पुराना सिद्धांत गलत हो सकता है कि धूमकेतुओं ने पृथ्वी पर जीवन के रासायनिक तत्व पहुँचाए थे। यह शोध साइंटिफिक रिपोर्ट्स पत्रिका में प्रकाशित हुआ है। टीम ने शुरुआती पृथ्वी पर धूमकेतुओं के टकराने का एक लाख बार सिमुलेशन किया और पाया कि औसतन कोई टक्कर हाइड्रोजन साइनाइड जैसे नाज़ुक कार्बनिक अणुओं को सफलतापूर्वक नहीं पहुँचा सकी, क्योंकि टक्कर की गर्मी और बल ने उन्हें नष्ट कर दिया। यह विचार कि जीवन के तत्व अंतरिक्ष से आए, एक सदी से भी पुराना है, लेकिन शोधकर्ताओं का कहना है कि अब क्षुद्रग्रह या पृथ्वी की अपनी रसायन विज्ञान अधिक संभावित व्याख्या है — हालाँकि धूमकेतुओं को पूरी तरह खारिज नहीं किया जा सकता।

The long-held theory that comets delivered the chemical building blocks of life to Earth may be wrong, according to new computer simulations from the University of Cambridge, published in the journal Scientific Reports. The team simulated early Earth being struck by comets 100,000 times and found that, on average, no impact successfully delivered fragile organic molecules such as hydrogen cyanide, because the heat and force of impact destroyed them. The idea that life's ingredients came from space dates back more than a century, but researchers say asteroids or chemistry on Earth itself are now likelier explanations — though comets cannot be ruled out entirely.

کیمبرج یونیورسٹی کی نئی کمپیوٹر سمولیشن کے مطابق یہ پرانا نظریہ غلط ہو سکتا ہے کہ شہابوں نے زمین پر زندگی کے کیمیائی اجزا پہنچائے تھے۔ یہ تحقیق سائنٹیفک رپورٹس جریدے میں شائع ہوئی ہے۔ ٹیم نے ابتدائی زمین پر شہابوں کے ٹکرانے کی ایک لاکھ بار سمولیشن کی اور پایا کہ اوسطاً کوئی ٹکراؤ ہائیڈروجن سائنائیڈ جیسے نازک نامیاتی مالیکیولز کامیابی سے نہیں پہنچا سکا، کیونکہ ٹکراؤ کی گرمی اور شدت نے انہیں تباہ کر دیا۔ یہ خیال کہ زندگی کے اجزا خلا سے آئے، ایک صدی سے زیادہ پرانا ہے، لیکن محققین کا کہنا ہے کہ اب سیارچے یا زمین کی اپنی کیمسٹری زیادہ ممکنہ وضاحت ہیں — اگرچہ شہابوں کو مکمل طور پر خارج نہیں کیا جا سکتا۔

कैम्ब्रिज विश्वविद्यालय के नए कंप्यूटर सिमुलेशन के अनुसार यह पुराना सिद्धांत गलत हो सकता है कि धूमकेतुओं ने पृथ्वी पर जीवन के रासायनिक तत्व पहुँचाए थे। यह शोध साइंटिफिक रिपोर्ट्स पत्रिका में प्रकाशित हुआ है। टीम ने शुरुआती पृथ्वी पर धूमकेतुओं के टकराने का एक लाख बार सिमुलेशन किया और पाया कि औसतन कोई टक्कर हाइड्रोजन साइनाइड जैसे नाज़ुक कार्बनिक अणुओं को सफलतापूर्वक नहीं पहुँचा सकी, क्योंकि टक्कर की गर्मी और बल ने उन्हें नष्ट कर दिया। यह विचार कि जीवन के तत्व अंतरिक्ष से आए, एक सदी से भी पुराना है, लेकिन शोधकर्ताओं का कहना है कि अब क्षुद्रग्रह या पृथ्वी की अपनी रसायन विज्ञान अधिक संभावित व्याख्या है — हालाँकि धूमकेतुओं को पूरी तरह खारिज नहीं किया जा सकता।

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