BREAKINGتازہ ترینताज़ा खबर
Gina Hinojosa defeats Greg Abbott to become first Latina governor of TexasGina Hinojosa defeats Greg Abbott to become first Latina governor of TexasGina Hinojosa defeats Greg Abbott to become first Latina governor of TexasDeb Haaland wins in New Mexico, becoming first female Native American governorDeb Haaland wins in New Mexico, becoming first female Native American governorDeb Haaland wins in New Mexico, becoming first female Native American governorSouth Africa local elections put ANC under pressure to reverse its declineSouth Africa local elections put ANC under pressure to reverse its declineSouth Africa local elections put ANC under pressure to reverse its declineJames Wan and Jason Blum unveil new company name: Blumhouse AtomicJames Wan and Jason Blum unveil new company name: Blumhouse AtomicJames Wan and Jason Blum unveil new company name: Blumhouse AtomicNearly $1.9 billion traded on midterms in booming prediction marketsNearly $1.9 billion traded on midterms in booming prediction marketsNearly $1.9 billion traded on midterms in booming prediction marketsRavens turn to undrafted rookie Joe Fagnano after Lamar Jackson lands on IRRavens turn to undrafted rookie Joe Fagnano after Lamar Jackson lands on IRRavens turn to undrafted rookie Joe Fagnano after Lamar Jackson lands on IRDumonts take over as controlling owners of MavericksDumonts take over as controlling owners of MavericksDumonts take over as controlling owners of MavericksSafari beta adds vertical tabs, adaptive dark mode and deeper AI helpSafari beta adds vertical tabs, adaptive dark mode and deeper AI helpSafari beta adds vertical tabs, adaptive dark mode and deeper AI helpJerry Jones says coach pay has 'zero correlation' with winningJerry Jones says coach pay has 'zero correlation' with winningJerry Jones says coach pay has 'zero correlation' with winningToronto home invasion suspect walked free from hospital, police sayToronto home invasion suspect walked free from hospital, police sayToronto home invasion suspect walked free from hospital, police say'Multi-cancer' blood tests coming to some GP surgeries in England'Multi-cancer' blood tests coming to some GP surgeries in England'Multi-cancer' blood tests coming to some GP surgeries in EnglandUS strikes on Iran sites as oil edges lower before election wrap-upUS strikes on Iran sites as oil edges lower before election wrap-upUS strikes on Iran sites as oil edges lower before election wrap-upJetBlue raises bag fees for a third time this year as fuel costs biteJetBlue raises bag fees for a third time this year as fuel costs biteJetBlue raises bag fees for a third time this year as fuel costs biteMLB players swiftly reject latest proposal as salary-cap talks stallMLB players swiftly reject latest proposal as salary-cap talks stallMLB players swiftly reject latest proposal as salary-cap talks stallNew map of 'empty' space challenges the calm picture of our galaxyNew map of 'empty' space challenges the calm picture of our galaxyNew map of 'empty' space challenges the calm picture of our galaxyHuge Alzheimer's study maps 127 genetic risk regions, 48 of them newHuge Alzheimer's study maps 127 genetic risk regions, 48 of them newHuge Alzheimer's study maps 127 genetic risk regions, 48 of them newTaco Bell sales recovering after cyclospora outbreak hit, Yum saysTaco Bell sales recovering after cyclospora outbreak hit, Yum saysTaco Bell sales recovering after cyclospora outbreak hit, Yum saysMelissa Rycroft breaks silence on second DWI arrest: 'I'm finally admitting I need help'Melissa Rycroft breaks silence on second DWI arrest: 'I'm finally admitting I need help'Melissa Rycroft breaks silence on second DWI arrest: 'I'm finally admitting I need help'Greenland parliament approves security deal with US and DenmarkGreenland parliament approves security deal with US and DenmarkGreenland parliament approves security deal with US and DenmarkJohn Hickenlooper wins second Senate term in ColoradoJohn Hickenlooper wins second Senate term in ColoradoJohn Hickenlooper wins second Senate term in ColoradoGina Hinojosa defeats Greg Abbott to become first Latina governor of TexasGina Hinojosa defeats Greg Abbott to become first Latina governor of TexasGina Hinojosa defeats Greg Abbott to become first Latina governor of TexasDeb Haaland wins in New Mexico, becoming first female Native American governorDeb Haaland wins in New Mexico, becoming first female Native American governorDeb Haaland wins in New Mexico, becoming first female Native American governorSouth Africa local elections put ANC under pressure to reverse its declineSouth Africa local elections put ANC under pressure to reverse its declineSouth Africa local elections put ANC under pressure to reverse its declineJames Wan and Jason Blum unveil new company name: Blumhouse AtomicJames Wan and Jason Blum unveil new company name: Blumhouse AtomicJames Wan and Jason Blum unveil new company name: Blumhouse AtomicNearly $1.9 billion traded on midterms in booming prediction marketsNearly $1.9 billion traded on midterms in booming prediction marketsNearly $1.9 billion traded on midterms in booming prediction marketsRavens turn to undrafted rookie Joe Fagnano after Lamar Jackson lands on IRRavens turn to undrafted rookie Joe Fagnano after Lamar Jackson lands on IRRavens turn to undrafted rookie Joe Fagnano after Lamar Jackson lands on IRDumonts take over as controlling owners of MavericksDumonts take over as controlling owners of MavericksDumonts take over as controlling owners of MavericksSafari beta adds vertical tabs, adaptive dark mode and deeper AI helpSafari beta adds vertical tabs, adaptive dark mode and deeper AI helpSafari beta adds vertical tabs, adaptive dark mode and deeper AI helpJerry Jones says coach pay has 'zero correlation' with winningJerry Jones says coach pay has 'zero correlation' with winningJerry Jones says coach pay has 'zero correlation' with winningToronto home invasion suspect walked free from hospital, police sayToronto home invasion suspect walked free from hospital, police sayToronto home invasion suspect walked free from hospital, police say'Multi-cancer' blood tests coming to some GP surgeries in England'Multi-cancer' blood tests coming to some GP surgeries in England'Multi-cancer' blood tests coming to some GP surgeries in EnglandUS strikes on Iran sites as oil edges lower before election wrap-upUS strikes on Iran sites as oil edges lower before election wrap-upUS strikes on Iran sites as oil edges lower before election wrap-upJetBlue raises bag fees for a third time this year as fuel costs biteJetBlue raises bag fees for a third time this year as fuel costs biteJetBlue raises bag fees for a third time this year as fuel costs biteMLB players swiftly reject latest proposal as salary-cap talks stallMLB players swiftly reject latest proposal as salary-cap talks stallMLB players swiftly reject latest proposal as salary-cap talks stallNew map of 'empty' space challenges the calm picture of our galaxyNew map of 'empty' space challenges the calm picture of our galaxyNew map of 'empty' space challenges the calm picture of our galaxyHuge Alzheimer's study maps 127 genetic risk regions, 48 of them newHuge Alzheimer's study maps 127 genetic risk regions, 48 of them newHuge Alzheimer's study maps 127 genetic risk regions, 48 of them newTaco Bell sales recovering after cyclospora outbreak hit, Yum saysTaco Bell sales recovering after cyclospora outbreak hit, Yum saysTaco Bell sales recovering after cyclospora outbreak hit, Yum saysMelissa Rycroft breaks silence on second DWI arrest: 'I'm finally admitting I need help'Melissa Rycroft breaks silence on second DWI arrest: 'I'm finally admitting I need help'Melissa Rycroft breaks silence on second DWI arrest: 'I'm finally admitting I need help'Greenland parliament approves security deal with US and DenmarkGreenland parliament approves security deal with US and DenmarkGreenland parliament approves security deal with US and DenmarkJohn Hickenlooper wins second Senate term in ColoradoJohn Hickenlooper wins second Senate term in ColoradoJohn Hickenlooper wins second Senate term in Colorado
Advertisement
Text size:
Global • 2026-11-01, 09:22 GMT • ~1 min read

Mars polar crater ice expands and shrinks with the seasons, study finds

تحقیق: مریخ کے قطبی گڑھوں کی برف موسموں کے ساتھ بڑھتی اور گھٹتی ہے

अध्ययन: मंगल के ध्रुवीय गड्ढों की बर्फ मौसमों के साथ बढ़ती और घटती है

Mars polar crater ice expands and shrinks with the seasons, study finds

Key points

اہم نکات

मुख्य बातें

  • Ice deposits inside craters near Mars' northern polar cap grow and shrink with the seasons, a new study of almost two decades of orbiter images has found.
  • Researchers examined 36 craters using NASA's Mars Reconnaissance Orbiter camera from 2006 to 2025 and found bright deposits changed in 32 of them, while four showed no change.
  • The changes were not uniform across craters, suggesting local conditions, not a planet-wide shift, drive the seasonal frost cycle — a finding that could help scientists read Mars' long-term climate history.
  • مریخ کے شمالی قطبی برفانی ٹوپی کے قریب گڑھوں کے اندر برف کے ذخائر موسموں کے ساتھ بڑھتے اور گھٹتے ہیں، تقریباً دو دہائیوں کی مدار سے لی گئی تصاویر کی نئی تحقیق میں یہ بات سامنے آئی ہے۔ محققین نے ناسا کے مارس ریکونیسنس آربیٹر کے کیمرے سے 2006 سے 2025 تک 36 گڑھوں کا جائزہ لیا اور پایا کہ 32 میں روشن ذخائر تبدیل ہوئے، جبکہ چار میں کوئی تبدیلی نہیں آئی۔ یہ تبدیلیاں تمام گڑھوں میں یکساں نہیں تھیں، جس سے ظاہر ہوتا ہے کہ موسمی برف کے چکر کو سیارے بھر کی تبدیلی نہیں بلکہ مقامی حالات چلاتے ہیں — یہ نتیجہ سائنسدانوں کو مریخ کی طویل مدتی موسمی تاریخ سمجھنے میں مدد دے سکتا ہے۔
  • मंगल के उत्तरी ध्रुवीय बर्फीली टोपी के पास गड्ढों के अंदर बर्फ के भंडार मौसमों के साथ बढ़ते और घटते हैं, लगभग दो दशकों की कक्षीय तस्वीरों के नए अध्ययन में यह बात सामने आई है। शोधकर्ताओं ने नासा के मार्स रिकॉनिसेंस ऑर्बिटर के कैमरे से 2006 से 2025 तक 36 गड्ढों की जांच की और पाया कि 32 में चमकीले भंडार बदले, जबकि चार में कोई बदलाव नहीं आया। ये बदलाव सभी गड्ढों में एक समान नहीं थे, जिससे पता चलता है कि मौसमी बर्फ के चक्र को ग्रह-व्यापी बदलाव नहीं बल्कि स्थानीय परिस्थितियाँ चलाती हैं — यह निष्कर्ष वैज्ञानिकों को मंगल के दीर्घकालिक जलवायु इतिहास को समझने में मदद दे सकता है।

Ice deposits inside craters near Mars' northern polar cap grow and shrink with the seasons, a new study of almost two decades of orbiter images has found. Researchers examined 36 craters using NASA's Mars Reconnaissance Orbiter camera from 2006 to 2025 and found bright deposits changed in 32 of them, while four showed no change. The changes were not uniform across craters, suggesting local conditions, not a planet-wide shift, drive the seasonal frost cycle — a finding that could help scientists read Mars' long-term climate history.

مریخ کے شمالی قطبی برفانی ٹوپی کے قریب گڑھوں کے اندر برف کے ذخائر موسموں کے ساتھ بڑھتے اور گھٹتے ہیں، تقریباً دو دہائیوں کی مدار سے لی گئی تصاویر کی نئی تحقیق میں یہ بات سامنے آئی ہے۔ محققین نے ناسا کے مارس ریکونیسنس آربیٹر کے کیمرے سے 2006 سے 2025 تک 36 گڑھوں کا جائزہ لیا اور پایا کہ 32 میں روشن ذخائر تبدیل ہوئے، جبکہ چار میں کوئی تبدیلی نہیں آئی۔ یہ تبدیلیاں تمام گڑھوں میں یکساں نہیں تھیں، جس سے ظاہر ہوتا ہے کہ موسمی برف کے چکر کو سیارے بھر کی تبدیلی نہیں بلکہ مقامی حالات چلاتے ہیں — یہ نتیجہ سائنسدانوں کو مریخ کی طویل مدتی موسمی تاریخ سمجھنے میں مدد دے سکتا ہے۔

मंगल के उत्तरी ध्रुवीय बर्फीली टोपी के पास गड्ढों के अंदर बर्फ के भंडार मौसमों के साथ बढ़ते और घटते हैं, लगभग दो दशकों की कक्षीय तस्वीरों के नए अध्ययन में यह बात सामने आई है। शोधकर्ताओं ने नासा के मार्स रिकॉनिसेंस ऑर्बिटर के कैमरे से 2006 से 2025 तक 36 गड्ढों की जांच की और पाया कि 32 में चमकीले भंडार बदले, जबकि चार में कोई बदलाव नहीं आया। ये बदलाव सभी गड्ढों में एक समान नहीं थे, जिससे पता चलता है कि मौसमी बर्फ के चक्र को ग्रह-व्यापी बदलाव नहीं बल्कि स्थानीय परिस्थितियाँ चलाती हैं — यह निष्कर्ष वैज्ञानिकों को मंगल के दीर्घकालिक जलवायु इतिहास को समझने में मदद दे सकता है।

Most read

سب سے زیادہ پڑھی گئی

सबसे ज़्यादा पढ़ी गई

  1. Loading...
Advertisement