Arfy'z tranche du Net - Mot-clé - Space<p>Partager à toutes et tous (enfin ceux que ça intéresse) ce que je note sur le net</p>2024-03-28T12:01:19+01:00Pascal Borschneckurn:md5:28b86082617eb3c17eb96a44e1167d8fDotclearJDG - La NASA va envoyer un message aux habitants d’Europa, lune de Jupiterurn:md5:ee3aa8798056d0a8741dc68ac8f6f1e32024-03-25T09:01:00+01:002024-03-25T09:01:00+01:00ArfyGeneralInfoSpace <p>Après avoir vu "<em>Le problème à trois corps</em>" et "<em>The Signal</em>", on peut se poser 2-3 questions =)</p>
<div style="margin: 1em auto; text-align: center;"><strong>La NASA va envoyer un message aux habitants d’Europa, lune de Jupiter </strong><br />
<br />
<a href="https://www.journaldugeek.com/2024/03/18/la-nasa-va-envoyer-un-message-aux-habitants-deuropa-lune-de-jupiter/" rel="noopener" target="_blank"><img alt="En octobre, la NASA lancera la mission Clipper vers l’une des lunes de Jupiter, Europa, embarquant un message de l’humanité à travers un artefact unique." class="media" src="https://arfy.fr/public/journaldugeek.com_la-nasa-va-envoyer-un-message-aux-habitants-deuropa-lune-de-jupiter.jpg" /><br />
journaldugeek.com</a></div>https://arfy.fr/dotclear/index.php?post/2024/03/25/JDG-La-NASA-va-envoyer-un-message-aux-habitants-d%E2%80%99Europa--lune-de-Jupiter#comment-formhttps://arfy.fr/dotclear/index.php?feed/atom/comments/19535iflscience - This Year Could Be A Once In A Lifetime Opportunity To See A Novaurn:md5:12044d43899aa7bbe929c62d32f4d4002024-03-21T09:01:00+01:002024-03-21T09:03:01+01:00ArfyImpressionnantInfoSpace <p>Une explosion de supernova serait attendue pour cette année.</p>
<div style="margin: 1em auto; text-align: center;"><strong>This Year Could Be A Once In A Lifetime Opportunity To See A Nova</strong><br />
<br />
<a href="https://www.iflscience.com/this-year-could-be-a-once-in-a-lifetime-opportunity-to-see-a-nova-73379" rel="noopener" target="_blank"><img alt="Full sequence of how T Coronae Borealis might look as it goes from the system's light being dominated by the red giant to the white dwarf's explosion." class="media" src="https://arfy.fr/public/iflscience.com_this-year-could-be-a-once-in-a-lifetime-opportunity-to-see-a-nova.jpg" /><br />
iflscience.com</a></div>
<p>Le GIF sur le blog de la NASA: <a href="https://blogs.nasa.gov/Watch_the_Skies/wp-content/uploads/sites/193/2024/02/NovaCygni_ArtistConcept_watermarked.gif" rel="noopener" target="_blank">GIF</a> @blogs.nasa.gov</p>https://arfy.fr/dotclear/index.php?post/2024/03/21/iflscience-This-Year-Could-Be-A-Once-In-A-Lifetime-Opportunity-To-See-A-Nova#comment-formhttps://arfy.fr/dotclear/index.php?feed/atom/comments/19518trustmyscience - Une nouvelle théorie controversée de la gravité remet en question l’existence de la matière noireurn:md5:5f71943fca32b5c778b754530484e9582024-03-18T07:01:00+01:002024-03-18T07:01:00+01:00ArfyGeneralInfoSpace <p>Controversée qu'ils disent, mais why not ?</p>
<blockquote>
<p>Un éminent physicien propose une nouvelle théorie dite « <em>postquantique de la gravité classique</em> », selon laquelle il n’y aurait pas besoin de matière noire et d’énergie noire pour expliquer l’expansion de l’Univers et la rotation des galaxies. Selon ce principe, l’espace-temps fluctuerait de manière aléatoire, c’est-à-dire en rupture avec la prévisibilité physique. Bien que controversée, cette théorie pourrait permettre d’unifier la théorie de la gravité d’Einstein et la mécanique quantique.</p>
</blockquote>
<div style="margin: 1em auto; text-align: center;"><strong>Une nouvelle théorie controversée de la gravité remet en question l’existence de la matière noire</strong><br />
<br />
<a href="https://trustmyscience.com/nouvelle-theorie-controversee-gravite-remet-question-existence-matiere-noire/" rel="noopener" target="_blank"><img alt="Selon la nouvelle théorie, il est possible d'expliquer l'expansion de l'Univers et le mouvement des galaxies en l'absence de matière et d'énergie noires." class="media" src="https://arfy.fr/public/trustmyscience.com_nouvelle-theorie-controversee-gravite-remet-question-existence-matiere-noire.jpg" /><br />
trustmyscience.com</a></div>https://arfy.fr/dotclear/index.php?post/2024/03/18/trustmyscience-Une-nouvelle-theorie-controversee-de-la-gravite-remet-en-question-l%E2%80%99existence-de-la-matiere-noire#comment-formhttps://arfy.fr/dotclear/index.php?feed/atom/comments/19502APOD - The Crew-8 Nebulaurn:md5:145c0ff93ddb7f7764b593fb37d4ffcb2024-03-14T07:01:00+01:002024-03-14T07:01:00+01:00ArfyImpressionnantPhotoSpace <p>The Crew-8 Nebula : une photo des gaz ejectés par une fusée Falcon 9.</p>
<div style="margin: 1em auto; text-align: center;"><strong>The Crew-8 Nebula</strong><br />
<br />
<a href="https://apod.nasa.gov/apod/ap240307.html" rel="noopener" target="_blank"><img alt="Not the James Webb Space Telescope's latest view of a distant galactic nebula, this cloud of gas and dust dazzled spacecoast skygazers on March 3." class="media" src="https://arfy.fr/public/apod.nasa.gov_The_Crew-8_Nebula.jpg" /><br />
apod.nasa.gov</a></div>
<p>Image Credit & <a href="https://apod.nasa.gov/apod/lib/about_apod.html#srapply" target="_blank">Copyright</a>: <a href="http://www.mseeley.net/" target="_blank">Michael Seeley</a></p>https://arfy.fr/dotclear/index.php?post/2024/03/14/APOD-The-Crew-8-Nebula#comment-formhttps://arfy.fr/dotclear/index.php?feed/atom/comments/19487APOD - M102: Edge-on Disk Galaxyurn:md5:70109738ed56d274422381059fc4800d2024-03-12T07:01:00+01:002024-03-12T07:01:00+01:00ArfyImpressionnantPhotoSpace <p>En effet, assez inhabituel de voir une galaxie par la tranche =)</p>
<div style="margin: 1em auto; text-align: center;"><strong>M102: Edge-on Disk Galaxy</strong><br />
<br />
<a href="https://apod.nasa.gov/apod/ap240306.html" rel="noopener" target="_blank"><img alt="Many disk galaxies are actually just as thin as NGC 5866, the Spindle galaxy" class="media" src="https://arfy.fr/public/apod.nasa.gov_M102_Edge-on_Disk_Galaxy.jpg" /><br />
apod.nasa.gov</a></div>
<p>Image Credit: <a href="https://www.nasa.gov/" target="_blank">NASA</a>, <a href="https://esa.int/" target="_blank">ESA</a>, <a href="https://science.nasa.gov/mission/hubble/" target="_blank">Hubble</a>; Processing: <a href="https://www.instagram.com/anugrafy/" target="_blank">Ehsan Ebrahimian</a></p>futura-sciences - Deux trous noirs de 28 milliards de masses solaires sont bloqués depuis des milliards d'années, pourquoi ?urn:md5:a064cfbc51f642b53b75dc9b48908c302024-03-11T09:01:00+01:002024-03-11T09:01:00+01:00ArfyImpressionnantInfoSpaceTechno<p>Autrement dit, est-ce qu'il pourrait y avoir des "<em>limites</em>" à la taille d'un trou noir ?</p>
<div style="margin: 1em auto; text-align: center;"><strong>Deux trous noirs de 28 milliards de masses solaires sont bloqués depuis des milliards d'années, pourquoi ?</strong><br />
<br />
<a href="https://www.futura-sciences.com/sciences/actualites/astronomie-deux-trous-noirs-28-milliards-masses-solaires-sont-bloques-depuis-milliards-annees-111858/" rel="noopener" target="_blank"><img alt="The Final Parsec Problem: do SUPERMASSIVE black holes ever MERGE?" class="media" src="https://arfy.fr/public/futura-sciences.com_astronomie-deux-trous-noirs-28-milliards-masses-solaires-sont-bloques-depuis-milliards-annees.jpg" /><br />
futura-sciences.com</a></div>
<blockquote>
<p>En étudiant d'un peu plus près ce système, il s'avère que les deux trous noirs semblent bloqués sur leur orbite avec une période orbitale d'environ 30 000 ans depuis plus de trois milliards d'années. Selon les astrophysiciens, toutes les données collectées et analysées confortent la théorie qui veut que ce soit en fait la masse d'un trou noir binaire supermassif qui joue un rôle clé dans le blocage d'une fusion potentielle.</p>
</blockquote>
<p>La vidéo:</p> <iframe width="800" height="450" src="https://www.youtube.com/embed/6tXIoViA_0g?si=PAOLQWh3HNdARdfU" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>aaronjenkin - Have you ever seen a stabilised Milky Way Timelapse?urn:md5:4ffaf4bca316f6fdd458e497dc255c362024-03-11T07:01:00+01:002024-03-11T07:01:00+01:00ArfyImpressionnantPhotoSpaceJolis time-lapses !
<div style="margin: 1em auto; text-align: center;">
<strong>Have you ever seen a stabilised Milky Way Timelapse?</strong><br /><br />
<a href="https://www.instagram.com/p/C4BOpg3oJB_/" target="_blank" rel="noopener">
<img alt="" class="media" src="https://arfy.fr/public/instagram.com_aaronjenkin_-_Have_you_ever_seen_a_stabilised_Milky_Way_Timelapse.jpg" />
<br />instagram.com</a>
</div>
<p>La vidéo:</p> <blockquote class="instagram-media" data-instgrm-captioned data-instgrm-permalink="https://www.instagram.com/reel/C4BOpg3oJB_/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14" style=" background:#FFF; border:0; border-radius:3px; box-shadow:0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width:540px; min-width:326px; padding:0; width:99.375%; width:-webkit-calc(100% - 2px); width:calc(100% - 2px);"><div style="padding:16px;"> <a href="https://www.instagram.com/reel/C4BOpg3oJB_/?utm_source=ig_embed&utm_campaign=loading" style=" background:#FFFFFF; line-height:0; padding:0 0; text-align:center; text-decoration:none; width:100%;" target="_blank"> <div style=" display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #F4F4F4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"></div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"></div> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"></div></div></div><div style="padding: 19% 0;"></div> <div style="display:block; height:50px; margin:0 auto 12px; width:50px;"><svg width="50px" height="50px" viewBox="0 0 60 60" version="1.1" xmlns="https://www.w3.org/2000/svg" xmlns:xlink="https://www.w3.org/1999/xlink"><g stroke="none" stroke-width="1" fill="none" fill-rule="evenodd"><g transform="translate(-511.000000, -20.000000)" fill="#000000"><g><path d="M556.869,30.41 C554.814,30.41 553.148,32.076 553.148,34.131 C553.148,36.186 554.814,37.852 556.869,37.852 C558.924,37.852 560.59,36.186 560.59,34.131 C560.59,32.076 558.924,30.41 556.869,30.41 M541,60.657 C535.114,60.657 530.342,55.887 530.342,50 C530.342,44.114 535.114,39.342 541,39.342 C546.887,39.342 551.658,44.114 551.658,50 C551.658,55.887 546.887,60.657 541,60.657 M541,33.886 C532.1,33.886 524.886,41.1 524.886,50 C524.886,58.899 532.1,66.113 541,66.113 C549.9,66.113 557.115,58.899 557.115,50 C557.115,41.1 549.9,33.886 541,33.886 M565.378,62.101 C565.244,65.022 564.756,66.606 564.346,67.663 C563.803,69.06 563.154,70.057 562.106,71.106 C561.058,72.155 560.06,72.803 558.662,73.347 C557.607,73.757 556.021,74.244 553.102,74.378 C549.944,74.521 548.997,74.552 541,74.552 C533.003,74.552 532.056,74.521 528.898,74.378 C525.979,74.244 524.393,73.757 523.338,73.347 C521.94,72.803 520.942,72.155 519.894,71.106 C518.846,70.057 518.197,69.06 517.654,67.663 C517.244,66.606 516.755,65.022 516.623,62.101 C516.479,58.943 516.448,57.996 516.448,50 C516.448,42.003 516.479,41.056 516.623,37.899 C516.755,34.978 517.244,33.391 517.654,32.338 C518.197,30.938 518.846,29.942 519.894,28.894 C520.942,27.846 521.94,27.196 523.338,26.654 C524.393,26.244 525.979,25.756 528.898,25.623 C532.057,25.479 533.004,25.448 541,25.448 C548.997,25.448 549.943,25.479 553.102,25.623 C556.021,25.756 557.607,26.244 558.662,26.654 C560.06,27.196 561.058,27.846 562.106,28.894 C563.154,29.942 563.803,30.938 564.346,32.338 C564.756,33.391 565.244,34.978 565.378,37.899 C565.522,41.056 565.552,42.003 565.552,50 C565.552,57.996 565.522,58.943 565.378,62.101 M570.82,37.631 C570.674,34.438 570.167,32.258 569.425,30.349 C568.659,28.377 567.633,26.702 565.965,25.035 C564.297,23.368 562.623,22.342 560.652,21.575 C558.743,20.834 556.562,20.326 553.369,20.18 C550.169,20.033 549.148,20 541,20 C532.853,20 531.831,20.033 528.631,20.18 C525.438,20.326 523.257,20.834 521.349,21.575 C519.376,22.342 517.703,23.368 516.035,25.035 C514.368,26.702 513.342,28.377 512.574,30.349 C511.834,32.258 511.326,34.438 511.181,37.631 C511.035,40.831 511,41.851 511,50 C511,58.147 511.035,59.17 511.181,62.369 C511.326,65.562 511.834,67.743 512.574,69.651 C513.342,71.625 514.368,73.296 516.035,74.965 C517.703,76.634 519.376,77.658 521.349,78.425 C523.257,79.167 525.438,79.673 528.631,79.82 C531.831,79.965 532.853,80.001 541,80.001 C549.148,80.001 550.169,79.965 553.369,79.82 C556.562,79.673 558.743,79.167 560.652,78.425 C562.623,77.658 564.297,76.634 565.965,74.965 C567.633,73.296 568.659,71.625 569.425,69.651 C570.167,67.743 570.674,65.562 570.82,62.369 C570.966,59.17 571,58.147 571,50 C571,41.851 570.966,40.831 570.82,37.631"></path></g></g></g></svg></div><div style="padding-top: 8px;"> <div style=" color:#3897f0; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:550; line-height:18px;">Voir cette publication sur Instagram</div></div><div style="padding: 12.5% 0;"></div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"><div> <div style="background-color: #F4F4F4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"></div> <div style="background-color: #F4F4F4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"></div> <div style="background-color: #F4F4F4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"></div></div><div style="margin-left: 8px;"> <div style=" background-color: #F4F4F4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"></div> <div style=" width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg)"></div></div><div style="margin-left: auto;"> <div style=" width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"></div> <div style=" background-color: #F4F4F4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"></div> <div style=" width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"></div></div></div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"></div> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"></div></div></a><p style=" color:#c9c8cd; font-family:Arial,sans-serif; font-size:14px; line-height:17px; margin-bottom:0; margin-top:8px; overflow:hidden; padding:8px 0 7px; text-align:center; text-overflow:ellipsis; white-space:nowrap;"><a href="https://www.instagram.com/reel/C4BOpg3oJB_/?utm_source=ig_embed&utm_campaign=loading" style=" color:#c9c8cd; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:normal; line-height:17px; text-decoration:none;" target="_blank">Une publication partagée par Aaron Jenkin | Cornwall & NZ (@aaronjenkin)</a></p></div></blockquote> <script async src="//www.instagram.com/embed.js"></script>APOD - Light Pillars Over Inner Mongoliaurn:md5:c85faa8e16885fb568b3e1eed57dd7362024-03-09T07:01:00+01:002024-03-09T07:01:00+01:00ArfyMédiasPhotoSpace <p>Juste, un gros WOW.</p>
<p>Image Credit & Copyright: N. D. Liao</p>
<div style="margin: 1em auto; text-align: center;"><strong>Light Pillars Over Inner Mongolia</strong><br />
<br />
<a href="https://apod.nasa.gov/apod/ap240304.html" rel="noopener" target="_blank"><img alt=" Pictured here are not auroras but nearby light pillars, a phenomenon typically much closer." class="media" src="https://arfy.fr/public/apod.nasa.gov_Light_Pillars_Over_Inner_Mongolia.jpg" /><br />
apod.nasa.gov</a></div>APOD - Supernova Remnant Simeis 147urn:md5:c7f935be5eb289fabfde6b9a227ec8722024-03-06T07:01:00+01:002024-03-06T07:01:00+01:00ArfyImpressionnantPhotoSpace <p>J'aime bien un de ses petits noms: Nébuleuse du spaghetti</p>
<p>Image Credit & Copyright: <a href="https://www.facebook.com/stephane.vetter.nuitsacrees">Stéphane Vetter</a> (<a href="http://www.nuitsacrees.fr/" target="_blank">Nuits sacrées</a>)</p>
<div style="margin: 1em auto; text-align: center;"><strong>Supernova Remnant Simeis 147</strong><br />
<br />
<a href="https://apod.nasa.gov/apod/ap240227.html" rel="noopener" target="_blank"><img alt="Also cataloged as Sharpless 2-240, the filamentary nebula goes by the popular nickname the Spaghetti Nebula" class="media" src="https://arfy.fr/public/apod.nasa.gov_Supernova_Remnant_Simeis_147.jpg" /><br />
apod.nasa.gov</a></div>JDG - Comment le télescope James Webb a-t-il pu mettre fin à 37 ans de débat en une seule photo ?urn:md5:71ece655254e489bb516b7d3cca7f1d02024-03-05T07:01:00+01:002024-03-05T07:01:00+01:00ArfyImpressionnantInfoSpace <p>Étoile à Neutron théorisée ou trou noir après l'explosion en 1987 d'une supernova (SN 1987A) ?</p>
<blockquote>
<h2>Une preuve indirecte</h2>
<p>Les scientifiques n’ont donc pas “vu” l’étoile à neutrons au cœur de SN 1987A. Ils ont par contre repéré des “traces signatures” de son existence avec ces deux raies spectrales. L’émission de rayonnements ionisés d’argon et de soufre ne peut pas, selon Mike Barlow, être liés à la présence d’un trou noir. C’est donc la preuve de l’existence d’une étoile à neutrons au cœur de cet amas de gaz et de poussière.</p>
</blockquote>
<div style="margin: 1em auto; text-align: center;"><strong>Comment le télescope James Webb a-t-il pu mettre fin à 37 ans de débat en une seule photo ?</strong><br />
<br />
<a href="https://www.journaldugeek.com/2024/02/23/comment-le-telescope-james-webb-a-t-il-pu-mettre-fin-a-37-ans-de-debat-en-une-seule-photo/" rel="noopener" target="_blank"><img alt="Les scientifiques n’ont donc pas “vu” l’étoile à neutrons au cœur de SN 1987A. Ils ont par contre repéré des “traces signatures” de son existence avec ces deux raies spectrales." class="media" src="https://arfy.fr/public/journaldugeek.com_comment-le-telescope-james-webb-a-t-il-pu-mettre-fin-a-37-ans-de-debat-en-une-seule-photo.jpg" /><br />
journaldugeek.com</a></div>APOD - Seagull Nebula over Pinnacles' Peakurn:md5:d006384c7f6b1ccf350ec608b403cf2c2024-03-02T07:01:00+01:002024-03-02T07:04:23+01:00ArfyImpressionnantPhotoSpace <p>Moi j'y vois un Phoenix =)</p>
<div style="margin: 1em auto; text-align: center;"><strong>Seagull Nebula over Pinnacles' Peak</strong><br />
<br />
<a href="https://apod.nasa.gov/apod/ap240221.html" rel="noopener" target="_blank"><img alt="The bird is bigger than the peak. Nicknamed for its avian shape, the Seagull Nebula is an emission nebula on the night sky that is vast, spanning an angle over five times the diameter of the full moon and over 200 light years" class="media" src="https://arfy.fr/public/apod.nasa.gov_Seagull_Nebula_over_Pinnacles__Peak.jpg" /><br />
apod.nasa.gov</a></div>
<p>Image Credit & Copyright: <a href="https://www.instagram.com/dheeranet/" target="_blank">Dheera Venkatraman</a></p>livescience - Our universe is merging with 'baby universes', causing it to expand, new theoretical study suggestsurn:md5:c7612a03a75fc640cdde5ead2a8b07512024-02-28T15:01:00+01:002024-02-28T15:01:00+01:00ArfyImpressionnantIdéeSpace <p>Une théorie de mélange de "<em>notre univers</em>" avec d'autres bébé univers =)</p>
<p><strong>*mindblast*</strong></p>
<div style="margin: 1em auto; text-align: center;"><strong>Our universe is merging with 'baby universes', causing it to expand, new theoretical study suggests</strong><br />
<br />
<a href="https://www.livescience.com/space/cosmology/our-universe-is-merging-with-baby-universes-causing-it-to-expand-new-theoretical-study-suggests" rel="noopener" target="_blank"><img alt="Perhaps, instead, our universe keeps colliding with and absorbing smaller 'baby universes,' a new theoretical study suggests." class="media" src="https://arfy.fr/public/livescience.com_our-universe-is-merging-with-baby-universes-causing-it-to-expand-new-theoretical-study-suggests.jpg" /><br />
livescience.com</a></div>trustmyscience - La Terre n’aurait pas toujours été sphérique ! Une étude suggère qu’elle ressemblait à l’origine à un Smarties…urn:md5:78fa2f40c00158ecb89b05d4167156cd2024-02-26T15:01:00+01:002024-02-26T15:01:00+01:00ArfyInsoliteSpaceTechno <p>Plate ? Nan, potentiellement un Smarties =)</p>
<div style="margin: 1em auto; text-align: center;"><strong>La Terre n’aurait pas toujours été sphérique ! Une étude suggère qu’elle ressemblait à l’origine à un Smarties… </strong><br />
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<a href="https://trustmyscience.com/etude-suggere-protoplanetes-non-spheriques-forme-aplatie/" rel="noopener" target="_blank"><img alt="Simulation informatique de planètes se formant dans un disque protostellaire. | Adam Fenton/Dimitris Stamatellos/University of Central Lancashire/PA" class="media" src="https://arfy.fr/public/trustmyscience.com_etude-suggere-protoplanetes-non-spheriques-forme-aplatie.jpg" /><br />
trustmyscience.com</a></div>sciencepost - Première détection de matière noire suspendue à la toile cosmiqueurn:md5:d27dc53d492539e84915ccb9f300830f2024-02-24T14:01:00+01:002024-02-24T14:55:28+01:00ArfyImpressionnantInfoSpace <p>Détecter l'indétectable (<em>matière noire</em>). Ben wow.</p>
<div style="margin: 1em auto; text-align: center;"><strong>Première détection de matière noire suspendue à la toile cosmique</strong><br />
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<a href="https://sciencepost.fr/premiere-detection-matiere-noire-amas-du-coma/" rel="noopener" target="_blank"><img alt="Matière noire dans l'amas de Coma, représentée par des nuages verts au-dessus de l'amas de Coma et des galaxies lointaines, vue par le télescope Subaru. Crédits : HyeongHan et al" class="media" src="https://arfy.fr/public/sciencepost.fr_premiere-detection-matiere-noire-amas-du-coma.jpg" /><br />
sciencepost.fr</a></div>Gizmodo - Here’s What a Solar Eclipse Looks Like on Marsurn:md5:3d2f8d6e609bf940250f2a45fbb25a6c2024-02-24T07:01:00+01:002024-02-24T07:14:23+01:00ArfyImpressionnantPhotoSpace <p>Même avec des lunettes de protection "<em>là bas</em>", ça doit piquer un peu aux yeux =)<br />
La "lune" Phobos qui passe entre Mars et le Soleil.</p>
<div style="margin: 1em auto; text-align: center;"><strong>Here’s What a Solar Eclipse Looks Like on Mars</strong><br />
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<a href="https://gizmodo.com/mars-eclipses-phobos-deimos-perseverance-nasa-1851252098" rel="noopener" target="_blank"><img alt="Sped-up animation of Phobos moving in front of the Sun during the eclipse. Gif: NASA/JPL-Caltech/ASU/MSSS/SSI/Gizmodo" class="media" src="https://arfy.fr/public/gizmodo.com_mars-eclipses-phobos-deimos-perseverance-nasa.jpg" /><br />
gizmodo.com</a></div>CNRS Lejournal - Voici venu le temps des trous blancsurn:md5:0c2b0fc1c6b537eab088eaebd704c2ea2024-02-15T13:01:00+01:002024-02-15T13:01:00+01:00ArfyPour comprendre où on va, il faut savoir d'où on vientInfoSpace <p>Sur un air de « <em>Voici venu le temps de l'ile aux enfants ...</em> »<br />
(c'est cadeau)</p>
<p>Sinon, c'est juste une théorie, vue de l'esprit de certains. Mais je trouve ça mimi =)</p>
<div style="margin: 1em auto; text-align: center;"><strong>Voici venu le temps des trous blancs</strong><br />
<figure><a href="https://lejournal.cnrs.fr/articles/voici-venu-le-temps-des-trous-blancs" rel="noopener" target="_blank"><img alt="" class="media" src="https://arfy.fr/public/lejournal.cnrs.fr_voici-venu-le-temps-des-trous-blancs.jpg" /></a></figure>
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<a href="https://lejournal.cnrs.fr/articles/voici-venu-le-temps-des-trous-blancs" rel="noopener" target="_blank">lejournal.cnrs.fr</a></div>APOD - The Heart Shaped Antennae Galaxiesurn:md5:41751d7ac510f6e48007bcc55b52740b2024-02-14T07:01:00+01:002024-02-14T07:01:00+01:00ArfyMédiasPhotoSpace <p>The D day.<br />
Comment ça il y a un thème spécial today ?</p>
<p>Image Credit & Copyright: <a href="https://www.kentbiggs.com/about.htm" target="_blank">Kent E. Biggs</a></p>
<div style="margin: 1em auto; text-align: center;"><strong>The Heart Shaped Antennae Galaxies</strong><br />
<figure><a href="https://apod.nasa.gov/apod/ap240207.html" rel="noopener" target="_blank"><img alt="" class="media" src="https://arfy.fr/public/apod.nasa.gov_The_Heart_Shaped_Antennae_Galaxies.jpg" /></a></figure>
<br />
<a href="https://apod.nasa.gov/apod/ap240207.html" rel="noopener" target="_blank">apod.nasa.gov</a></div>APOD - In the Core of the Carina Nebulaurn:md5:0f647539799de2db354693314969f94f2024-02-13T07:01:00+01:002024-02-13T07:01:00+01:00ArfyMédiasPhotoSpace <p>Choliiii.</p>
<div style="margin: 1em auto; text-align: center;"><strong>In the Core of the Carina Nebula</strong><br />
<figure><a href="https://apod.nasa.gov/apod/ap240205.html" rel="noopener" target="_blank"><img alt="" class="media" src="https://arfy.fr/public/apod.nasa.gov_In_the_Core_of_the_Carina_Nebula.jpg" /></a></figure>
<br />
<a href="https://apod.nasa.gov/apod/ap240205.html" rel="noopener" target="_blank">apod.nasa.gov</a></div>
<p>Image Credit & Copyright: <a href="https://www.instagram.com/capastrophotography/" target="_blank">Carlos Taylor</a></p>arstechnica - Should you flush with toilet lid up or down? Study says it doesn’t matterurn:md5:2daa69ac782fd882825957504fee0be22024-02-08T11:01:00+01:002024-02-08T11:11:18+01:00ArfyTableau blancSpace <p>Bref c'est intuitif, baisser le couvercle ça aide, mais pas parfait. Ce n'est pas étanche.<br />
Et en gros</p>
<ul>
<li>chez soi, je dirai, sauf malades à la maison bon ben hein, on est bien élevé (<em>HoupaHⓒ</em>), on baisse la cuvette. Par contre, baisser, puis chasse d'eau, puis remonter pour nettoyer, puis baisser. Mouaip.</li>
<li>et chez les autres et dans les lieux publics surtout, comment savoir que les "<em>précédents</em>" ont fait quelque chose ?</li>
</ul>
<blockquote>
<p>"<em>Unfortunately, the possible benefit of toilet lid closure during flushing for reducing viral contamination has not been demonstrated empirically,</em>" the authors of this latest study wrote in their paper. "<em>In addition, other activities in the restroom, such as cleaning the toilet bowl, may result in the generation of aerosols.</em>" So Stephanie Boone and co-authors decided to rectify this gap in the literature.</p>
</blockquote>
<div style="margin: 1em auto; text-align: center;">
<p><strong>Should you flush with toilet lid up or down? Study says it doesn’t matter</strong></p>
<figure><a href="https://arstechnica.com/science/2024/01/study-closing-toilet-lid-while-flushing-doesnt-stop-spread-of-airborne-bacteria/" rel="noopener" target="_blank"><img alt="" class="media" src="https://arfy.fr/public/arstechnica.com_study-closing-toilet-lid-while-flushing-doesnt-stop-spread-of-airborne-bacteria.jpg" /></a></figure>
<br />
<a href="https://arstechnica.com/science/2024/01/study-closing-toilet-lid-while-flushing-doesnt-stop-spread-of-airborne-bacteria/" rel="noopener" target="_blank">arstechnica.com</a></div>nasa - Daily Telescope: Webb telescope reveals breathtaking structure of galaxiesurn:md5:e71cd8d84e73d40fa00b77ed45424a4a2024-02-07T07:01:00+01:002024-02-07T07:39:11+01:00ArfyImpressionnantPhotoSpace <p>Plein <strong>MES</strong> yeux !</p>
<div style="margin: 1em auto; text-align: center;"><strong>Daily Telescope: Webb telescope reveals breathtaking structure of galaxies</strong><br />
<figure><a href="https://science.nasa.gov/missions/webb/nasas-webb-depicts-staggering-structure-in-19-nearby-spiral-galaxies/" rel="noopener" target="_blank"><img alt="" class="media" src="https://arfy.fr/public/science.nasa.gov_missionswebb_nasas-webb-depicts-staggering-structure-in-19-nearby-spiral-galaxies.jpg" /></a></figure>
<br />
<a href="https://science.nasa.gov/missions/webb/nasas-webb-depicts-staggering-structure-in-19-nearby-spiral-galaxies/" rel="noopener" target="_blank">science.nasa.gov</a></div>