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Young Ninja Group (ages 3-5)

Публічна·26 учасників


The Origins Space Telescope will trace the history of our origins from the time dust and heavy elements permanently altered the cosmic landscape to present-day life. How did galaxies evolve from the earliest galactic systems to those found in the universe today? How do habitable planets form? How common are life-bearing worlds? To answer these alluring questions, Origins will operate at mid- and far-infrared wavelengths and offer powerful spectroscopic instruments and sensitivity three orders of magnitude better than that of Herschel, the largest telescope flown in space to date.


Meet your closest ancestors and relatives in this interactive exploration of human evolution. This 15,000-square-foot gallery invites you to explore the scientific evidence of human origins over the past 6 million years and traces how we evolved the unique traits that distinguish our species.

In March and early April 2009, a new swine-origin influenza A (H1N1) virus (S-OIV) emerged in Mexico and the United States. During the first few weeks of surveillance, the virus spread worldwide to 30 countries (as of May 11) by human-to-human transmission, causing the World Health Organization to raise its pandemic alert to level 5 of 6. This virus has the potential to develop into the first influenza pandemic of the twenty-first century. Here we use evolutionary analysis to estimate the timescale of the origins and the early development of the S-OIV epidemic. We show that it was derived from several viruses circulating in swine, and that the initial transmission to humans occurred several months before recognition of the outbreak. A phylogenetic estimate of the gaps in genetic surveillance indicates a long period of unsampled ancestry before the S-OIV outbreak, suggesting that the reassortment of swine lineages may have occurred years before emergence in humans, and that the multiple genetic ancestry of S-OIV is not indicative of an artificial origin. Furthermore, the unsampled history of the epidemic means that the nature and location of the genetically closest swine viruses reveal little about the immediate origin of the epidemic, despite the fact that we included a panel of closely related and previously unpublished swine influenza isolates. Our results highlight the need for systematic surveillance of influenza in swine, and provide evidence that the mixing of new genetic elements in swine can result in the emergence of viruses with pandemic potential in humans.

The Origins of Life Initiative supports multi-disciplinary research aimed at revealing if life is abundant in the Universe. We seek to understand how the initial conditions on planets, including our own Earth and planets around other stars, dictated the origins of life and its subsequent evolution. Using this knowledge, it will eventually be possible to study the atmospheres of far distant planets for signs of life, including planets that might be Earth twins.

By bringing together top experts and authors, this archaeology website explores lost civilizations, examines sacred writings, tours ancient places, investigates ancient discoveries and questions mysterious happenings. Our open community is dedicated to digging into the origins of our species on planet earth, and question wherever the discoveries might take us. We seek to retell the story of our beginnings.

When you create a distribution, you specify the originwhere CloudFront sends requests for the files. You can use several different kinds of originswith CloudFront. For example, you can use an Amazon S3 bucket, a MediaStore container, a MediaPackage channel,an Application Load Balancer, or an AWS Lambda function URL. 041b061a72

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