Create: 2021-01-29 Update: 2025-06-28 11:33:45

📡 #رصد_کیهان: ۰۳ 🔗| مشاهدات اِدوین هابل نشان داد که کهکشان‌ها در حال دور شدن از زمین‌اند، و سرعت دور شدن کهکشان‌هایِ دوردست، بیش‌تر است. طبق ثابت عددیِ #هابل، سرعت دور شدن کهکشان‌ها از ما تقریبا معادل است با ۲۲.۴ کیلومتر بر ثانیه به‌ازایِ هر یک میلیون سال نوری [🔗].

🔘 به دلیل #انبساط_کیهان و افزایش تار و پودِ تشکیل‌دهندهٔ آن، در نتیجه نوری که از کهکشان‌ها و اجرام آسمانی به تلسکوپ‌هایِ زمینی می‌رسد نیز منبسط می‌شود (طول موج نور افزایش می‌یابد). به این پدیده در اخترشناسی «انتقال به سرخ» یا Redshift گفته می‌شود. این کار با تحلیلِ طیفِ نورِ اجرام آسمانی امکان‌پذیر است. یکی از تکنیک‌هایی‌ست که با آن می‌توان با دقت زیادی فواصل کیهانی رو اندازه‌گیری کرد. — [پست قبل: 🔗]

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Newly uncovered hack campaign in Telegram

The campaign, which security firm Check Point has named Rampant Kitten, comprises two main components, one for Windows and the other for Android. Rampant Kitten’s objective is to steal Telegram messages, passwords, and two-factor authentication codes sent by SMS and then also take screenshots and record sounds within earshot of an infected phone, the researchers said in a post published on Friday.

📡 #رصد_کیهان: ۰۳ 🔗| مشاهدات اِدوین هابل نشان داد که کهکشان‌ها در حال دور شدن از زمین‌اند، و سرعت دور شدن کهکشان‌هایِ دوردست، بیش‌تر است. طبق ثابت عددیِ #هابل، سرعت دور شدن کهکشان‌ها از ما تقریبا معادل است با ۲۲.۴ کیلومتر بر ثانیه به‌ازایِ هر یک میلیون سال نوری [🔗].

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