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‘কেপলা- ৪৫২ বি’ কী?

‘কেপলা- ৪৫২ বি’ কী? সঠিক উত্তর পৃথিবীর মতো একটি গ্রহ

কেপলার টু জিরো ই, কেপলার টু জিরো এফ, কেপলার টুয়েন্টি ই এই তিনটি পৃথিবী সদৃশ গ্রহ ২০১১ সালে আবিষ্কার করা হয়েছে। তবে এই গ্রহগুলো নিজেদের কক্ষপথের তারার এত কাছে অবস্থান করছে যে, এগুলোতে প্রাণের অস্তিত্ব পাওয়া আর পানি পাওয়া কঠিন। এ গ্রহগুলোর তাপমাত্রা অনেক বেশি।

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