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Imaginile cu neutroni dezvăluie zincul ca fiind vinovat în prăbușirea radiotelescopului Arecibo PDF Imprimare
International
Duminică, 27 August 2023 19:18

                          The instrument platform crashing into the radio telescope antenna

     Almost three years after the event, neutron scans by the Oak Ridge National Laboratory have uncovered the cause of the platform collapse that resulted in the destruction of the 1,000-ft (300-m) Arecibo Observatory radio telescope.
     Constructed in 1963, The Arecibo radio telescope was constructed in a natural sinkhole, with a 1.8-million-lb (816,000-kg) steel platform suspended at the focus point 500 ft (150 m) above the mesh dish. For over 50 years it performed cutting-edge astronomical research, beamed one of the first messages into space in an attempt to contact alien civilizations, and was the setting for the climax for the 1995 Bond thriller GoldenEye.
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SpaceX Crew-7 de la NASA se lansează pe Stația Spațială Internațională PDF Imprimare
International
Sâmbătă, 26 August 2023 16:33

        SpaceX Crew-7 de la NASA se lansează pe Stația Spațială Internațională

               NASA's SpaceX Crew-7 launches to International Space Station.

     An international crew of four representing four countries is in orbit following a successful launch to the International Space Station at 3:27 a.m. EDT Saturday, Aug. 26, from Launch Complex 39A at NASA’s Kennedy Space Center in Florida. The agency’s SpaceX Crew-7 mission is the seventh commercial crew rotation mission for NASA.

    A SpaceX Falcon 9 rocket launched the Dragon spacecraft into orbit carrying NASA astronaut Jasmin Moghbeli, ESA (European Space Agency) astronaut Andreas Mogensen, JAXA (Japan Aerospace Exploration Agency) astronaut Satoshi Furukawa, and Roscosmos cosmonaut Konstantin Borisov, for a science expedition aboard the orbital laboratory.


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Cojile reziduale de aloe vera pot fi o sursă de insecticid ecologic PDF Imprimare
International
Marţi, 22 August 2023 16:37

                                Some of the dried aloe vera peels utilized in the study

     Although the gel of the aloe vera plant is commonly used to treat sunburn, moisturize skin and boost gut health (among other applications), its peels are typically discarded. New research now suggests that those peels could also be used, to make non-toxic insecticide for use by farmers.

     The study is being led by Asst. Prof. Debasish Bandyopadhyay, of the University of Texas - Rio Grande Valley.

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Racheta anti-ICBM a lui Lockheed Martin depășește o etapă majoră de dezvoltare PDF Imprimare
International
Duminică, 20 August 2023 16:51

                       Artist's concept of the Lockheed Martin NGI missile

   America's Next Generation Interceptor (NGI) for countering rogue state ICBM attacks has passed a major milestone. Lockheed Martin has announced that the US Missile Defense Agency (MDA) has passed all design elements of the company's NGI missile project.

   Despite the dramatic reduction of the world's nuclear arsenals and launch platforms after the end of the Cold War, there are still an worryingly large number of warheads still poised for launch across the world. With hundreds of missiles aimed at the United States at any moment, the new 21 planned NGIs as part of the nation's Ground Missile Defense (GMD) system seems comically small compared to the threat.


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Nava spațială XRISM va deschide o nouă fereastră pe Cosmosul cu raze X PDF Imprimare
International
Marţi, 15 August 2023 17:59
               Against a black background, the gold-foil-covered XRISM spacecraft points directly at the viewer.
  "Viitoarea navă spațială XRISM (X-ray Imaging and Spectroscopy Mission, pronunțat „crism”) va studia cele mai fierbinți regiuni ale universului, cele mai mari structuri și obiecte cu cea mai puternică gravitație. 
   Condus de JAXA (Japan Aerospace Exploration Agency), XRISM va observa aceste extreme cosmice folosind spectroscopie, studiul modului în care lumina și materia interacționează. 
   În acest explicator, producătorul video Sophia Roberts de la Centrul de zbor spațial Goddard al NASA ne prezintă modul în care înțelegerea spectroscopiei ne aprofundează cunoștințele despre univers.
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