Λιγότερο απο 1 λεπτό Διάρκεια άρθρου: Λεπτά

Η μεγαλύτερη άσκηση πλανητικής άμυνας ενεργοποιήθηκε, καθώς ο διαστρικός επισκέπτης 3I/ATLAS πλησιάζει τη Γη

22 Δεκέμβριος 2025

Η μεγαλύτερη άσκηση πλανητικής άμυνας ενεργοποιήθηκε, καθώς ο διαστρικός επισκέπτης 3I/ATLAS πλησιάζει τη Γη – Newsbeast<meta name="description" content="Το μυστηριώδες διαστρικό αντικείμενο 3I/ATLAS βρίσκεται μόλις λίγες ημέρες πριν από την πλησιέστερη προσέγγισή του στη Γη, γεγονός που έχει πυροδοτήσει τη μεγαλύτερη άσκηση πλανητικής άμυνας στην ιστορία."><meta name="robots" content="index, follow"><meta property="og:title" content="Η μεγαλύτερη άσκηση πλανητικής άμυνας ενεργοποιήθηκε, καθώς ο διαστρικός επισκέπτης 3I/ATLAS πλησιάζει τη Γη"><meta property="og:type" content="article"><meta property="og:image" content="https://www.newsbeast.gr/image/s1200x762/fill/file/files/1/2025/11/3I-ATLAS1.jpg"><meta property="og:url" content="https://www.newsbeast.gr/world/arthro/12768135/i-megalyteri-askisi-planitikis-amynas-energopoiithike-kathos-o-diastrikos-episkeptis-3i-atlas-plisiazei-ti-gi"><meta property="og:description" content="«Δεν πρόκειται πλέον για επιστημονική φαντασία»"><meta property="og:locale" content="el_GR"><meta property="og:site_name" content="Newsbeast"><meta property="og:image:url" content="https://www.newsbeast.gr/image/s1200x762/fill/file/files/1/2025/11/3I-ATLAS1.jpg"><meta property="og:image:width" content="1200"><meta property="og:image:height" content="762"><meta property="article:published_time" content="2025-12-16T08:40:54.000Z"><meta property="article:section" content="ΚΟΣΜΟΣ"><meta property="article:tag" content="3I/ATLAS"><meta property="article:tag" content="Nasa"><meta property="article:tag" content="διάστημα"><meta property="article:tag" content="κομήτης"><meta name="twitter:card" content="summary_large_image"><meta name="twitter:site" content="@newsbeast"><meta name="twitter:title" content="Η μεγαλύτερη άσκηση πλανητικής άμυνας ενεργοποιήθηκε, καθώς ο διαστρικός επισκέπτης 3I/ATLAS πλησιάζει τη Γη"><meta name="twitter:image" content="https://www.newsbeast.gr/image/s1200x762/fill/file/files/1/2025/11/3I-ATLAS1.jpg"><meta name="twitter:description" content="Το μυστηριώδες διαστρικό αντικείμενο 3I/ATLAS βρίσκεται μόλις λίγες ημέρες πριν από την πλησιέστερη προσέγγισή του στη Γη, γεγονός που έχει πυροδοτήσει τη μεγαλύτερη άσκηση πλανητικής άμυνας στην ιστορία."><meta name="twitter:creator" content="@newsbeast"><br> <div class="internal-linking-related-contents-pro"><a href="https://gnosigiaolous.gr/terasties-iliakes-eklampseis-erixan-tis-radioepikoinonies-se-polles-perioches-tis-gis/" class="template-4"><img width="250" height="141" src="https://gnosigiaolous.gr/wp-content/uploads/2026/04/terasties-iliakes-eklampsis-erixan-tis.jpg" class="alignleft wp-post-image" alt="" srcset="https://gnosigiaolous.gr/wp-content/uploads/2026/04/terasties-iliakes-eklampsis-erixan-tis.jpg 620w, https://gnosigiaolous.gr/wp-content/uploads/2026/04/terasties-iliakes-eklampsis-erixan-tis-300x169.jpg 300w, https://gnosigiaolous.gr/wp-content/uploads/2026/04/terasties-iliakes-eklampsis-erixan-tis-250x141.jpg 250w, https://gnosigiaolous.gr/wp-content/uploads/2026/04/terasties-iliakes-eklampsis-erixan-tis-100x56.jpg 100w, https://gnosigiaolous.gr/wp-content/uploads/2026/04/terasties-iliakes-eklampsis-erixan-tis-600x339.jpg 600w" sizes="auto" loading="lazy" fetchpriority="low"><div class="postTitle"><span><strong>Διαβάστε επίσης:</strong>Τεράστιες ηλιακές εκλάμψεις έριξαν τις ραδιοεπικοινωνίες σε πολλές περιοχές της Γης</span></div></a></div><p> <sticky-header id="stickyHeader" data-options='{"observeTarget":".headImageCnt"}' data-astro-cid-qo2kes6d="" class="stickyHeader hdApp isArticle"> </sticky-header> <main class="container defViewPadder"> </main></p> <article class="_articleDefault_8c3d1_1"> <category-and-tags class="_categoryAndTagsCnt_vgb9m_63 _singleLine_vgb9m_74"> </category-and-tags> <h2 class="_articleSubTitle_vgb9m_35">«Δεν πρόκειται πλέον για επιστημονική φαντασία»</h2> </article> <div class="internal-linking-related-contents-pro"><a href="https://gnosigiaolous.gr/giati-oi-astronaytes-pianoyn-ta-antikeimena-pio-sfichta-apo-oso-chreiazetai-sto-diastima/" class="template-4"><img width="250" height="167" src="https://gnosigiaolous.gr/wp-content/uploads/2026/04/giati-i-astronaftes-pianoun-ta.png" class="alignleft wp-post-image" alt="" srcset="https://gnosigiaolous.gr/wp-content/uploads/2026/04/giati-i-astronaftes-pianoun-ta.png 1024w, https://gnosigiaolous.gr/wp-content/uploads/2026/04/giati-i-astronaftes-pianoun-ta-300x200.png 300w, https://gnosigiaolous.gr/wp-content/uploads/2026/04/giati-i-astronaftes-pianoun-ta-768x512.png 768w, https://gnosigiaolous.gr/wp-content/uploads/2026/04/giati-i-astronaftes-pianoun-ta-250x167.png 250w, https://gnosigiaolous.gr/wp-content/uploads/2026/04/giati-i-astronaftes-pianoun-ta-100x67.png 100w, https://gnosigiaolous.gr/wp-content/uploads/2026/04/giati-i-astronaftes-pianoun-ta-600x400.png 600w" sizes="auto" loading="lazy" fetchpriority="low"><div class="postTitle"><span><strong>Διαβάστε επίσης:</strong>Γιατί οι αστροναύτες πιάνουν τα αντικείμενα πιο σφιχτά από όσο χρειάζεται στο διάστημα;</span></div></a></div><p> </p> <div class="container" data-astro-cid-a3jj45ac=""> <section class="_marketNews" data-astro-cid-tvkb6kqx=""> <h2 data-astro-cid-tvkb6kqx="">MARKET NEWS</h2> </section></div> <articles-inf-feed class="noPrint" postid="12768135"> </articles-inf-feed> <div class="article-point"> Το πρωτότυπο άρθρο <a target="_blank" href="https://www.newsbeast.gr/world/arthro/12768135/i-megalyteri-askisi-planitikis-amynas-energopoiithike-kathos-o-diastrikos-episkeptis-3i-atlas-plisiazei-ti-gi" style="white-space: nowrap;width: 300px;overflow: hidden">https://www.newsbeast.gr/world/arthro/12768135/i-megalyteri-askisi-planitikis-amynas-energopoiithike-kathos-o-diastrikos-episkeptis-3i-atlas-plisiazei-ti-gi</a> ανήκει στο <a target="_blank" href="https://www.newsbeast.gr/world/arthro/12768135/i-megalyteri-askisi-planitikis-amynas-energopoiithike-kathos-o-diastrikos-episkeptis-3i-atlas-plisiazei-ti-gi">διάστημα – Newsbeast</a> . </div> <div class="xs_social_share_widget xs_share_url after_content main_content wslu-style-1 wslu-share-box-shaped wslu-fill-colored wslu-none wslu-share-horizontal wslu-theme-font-no wslu-main_content"> <ul> <li class="xs-share-li facebook wslu-no-extra-data"> <a href="#" class="xs-share-link" id="xs_feed_facebook" data-pid="536" data-uri_hash="91267949c03c206b15253fff82076307" data-key="facebook" data-xs-href="http://www.facebook.com/sharer.php?u=https%3A%2F%2Fgnosigiaolous.gr%2Fi-megalyteri-askisi-planitikis-amynas-energopoiithike-kathos-o-diastrikos-episkeptis-3i-atlas-plisiazei-ti-gi%2F&t=%CE%97+%CE%BC%CE%B5%CE%B3%CE%B1%CE%BB%CF%8D%CF%84%CE%B5%CF%81%CE%B7+%CE%AC%CF%83%CE%BA%CE%B7%CF%83%CE%B7+%CF%80%CE%BB%CE%B1%CE%BD%CE%B7%CF%84%CE%B9%CE%BA%CE%AE%CF%82+%CE%AC%CE%BC%CF%85%CE%BD%CE%B1%CF%82+%CE%B5%CE%BD%CE%B5%CF%81%CE%B3%CE%BF%CF%80%CE%BF%CE%B9%CE%AE%CE%B8%CE%B7%CE%BA%CE%B5%2C+%CE%BA%CE%B1%CE%B8%CF%8E%CF%82+%CE%BF+%CE%B4%CE%B9%CE%B1%CF%83%CF%84%CF%81%CE%B9%CE%BA%CF%8C%CF%82+%CE%B5%CF%80%CE%B9%CF%83%CE%BA%CE%AD%CF%80%CF%84%CE%B7%CF%82+3I%2FATLAS+%CF%80%CE%BB%CE%B7%CF%83%CE%B9%CE%AC%CE%B6%CE%B5%CE%B9+%CF%84%CE%B7+%CE%93%CE%B7&v=3"> <div class="xs-social-icon"> <span class="met-social met-social-facebook"></span> </div> <div class="wslu-hover-content"> <div class="xs-social-followers"> 0 </div> <div class="xs-social-follower-text"> </div> <div class="xs-social-follower-label"> Facebook </div> </div> </a> </li> <li class="xs-share-li twitter wslu-no-extra-data"> <a href="#" class="xs-share-link" id="xs_feed_twitter" data-pid="536" data-uri_hash="91267949c03c206b15253fff82076307" data-key="twitter" data-xs-href="https://twitter.com/intent/tweet?text=%CE%97+%CE%BC%CE%B5%CE%B3%CE%B1%CE%BB%CF%8D%CF%84%CE%B5%CF%81%CE%B7+%CE%AC%CF%83%CE%BA%CE%B7%CF%83%CE%B7+%CF%80%CE%BB%CE%B1%CE%BD%CE%B7%CF%84%CE%B9%CE%BA%CE%AE%CF%82+%CE%AC%CE%BC%CF%85%CE%BD%CE%B1%CF%82+%CE%B5%CE%BD%CE%B5%CF%81%CE%B3%CE%BF%CF%80%CE%BF%CE%B9%CE%AE%CE%B8%CE%B7%CE%BA%CE%B5%2C+%CE%BA%CE%B1%CE%B8%CF%8E%CF%82+%CE%BF+%CE%B4%CE%B9%CE%B1%CF%83%CF%84%CF%81%CE%B9%CE%BA%CF%8C%CF%82+%CE%B5%CF%80%CE%B9%CF%83%CE%BA%CE%AD%CF%80%CF%84%CE%B7%CF%82+3I%2FATLAS+%CF%80%CE%BB%CE%B7%CF%83%CE%B9%CE%AC%CE%B6%CE%B5%CE%B9+%CF%84%CE%B7+%CE%93%CE%B7+https%3A%2F%2Fgnosigiaolous.gr%2Fi-megalyteri-askisi-planitikis-amynas-energopoiithike-kathos-o-diastrikos-episkeptis-3i-atlas-plisiazei-ti-gi%2F&original_referer=https%3A%2F%2Fgnosigiaolous.gr%2Fi-megalyteri-askisi-planitikis-amynas-energopoiithike-kathos-o-diastrikos-episkeptis-3i-atlas-plisiazei-ti-gi%2F&related=xpeedstudio"> <div class="xs-social-icon"> <span class="met-social met-social-twitter"></span> </div> <div class="wslu-hover-content"> <div class="xs-social-followers"> 0 </div> <div class="xs-social-follower-text"> </div> <div class="xs-social-follower-label"> Twitter </div> </div> </a> </li> <li class="xs-share-li facebook-messenger wslu-no-extra-data"> <a href="#" class="xs-share-link" id="xs_feed_facebook-messenger" data-pid="536" data-uri_hash="91267949c03c206b15253fff82076307" data-key="facebook-messenger" data-xs-href="https://www.facebook.com/dialog/send?link=https%3A%2F%2Fgnosigiaolous.gr%2Fi-megalyteri-askisi-planitikis-amynas-energopoiithike-kathos-o-diastrikos-episkeptis-3i-atlas-plisiazei-ti-gi%2F&redirect_uri=https%3A%2F%2Fgnosigiaolous.gr%2Fi-megalyteri-askisi-planitikis-amynas-energopoiithike-kathos-o-diastrikos-episkeptis-3i-atlas-plisiazei-ti-gi%2F&display=popup&app_id=2577123062406162"> <div class="xs-social-icon"> <span class="met-social met-social-facebook-messenger"></span> </div> <div class="wslu-hover-content"> <div class="xs-social-followers"> 0 </div> <div class="xs-social-follower-text"> </div> <div class="xs-social-follower-label"> Facebook-messenger </div> </div> </a> </li> </ul> </div>