El Siglo 21 es Hoy

Por NASA Podcast #Recomendado Tweet Gravity Assist: How We Make Webb (and Hubble) Images The world will get a first glimpse of the universe as never before when the first images from the James Webb Space Telescope come out on July 12. And this is only the beginning — the telescope will deliver all kinds of insights about galaxies, planets, and more, for years to come. But someone has to translate that data into beautiful imagery, especially since Webb collects light that falls outside of human vision. That’s where Joe DePasquale of the Space Telescope Science Institute comes in. Learn how he makes choices about color and other aspects of space images in this week’s Gravity Assist podcast.

Por NASA Podcast #Recomendado Tweet Gravity Assist: Listening to the Universe, with Kim Arcand NASA spacecraft deliver stunning visual imagery of the cosmos, but we can also experience that data by turning it into sound. Kim Arcand at the Chandra X-Ray Observatory has helped develop many different sonifications including from galaxies, black holes, nebulae and more. Kim chats with NASA’s Chief Scientist Jim Green about her process of choosing instruments to represent different kinds of light, and plays a few examples of these cosmic sounds. Check out the full series of sonifications at chandra.si.edu/sound.

Por NASA Podcast #Recomendado Tweet Hubble Treasure Trove Sonification Space becomes “sonified” in this visualization of a cluster of galaxies imaged by NASA's Hubble Space Telescope. Time flows left to right, and the frequency of sound changes from bottom to top, ranging from 30 to 1,000 hertz. Objects near the bottom of the image produce lower notes, while those near the top produce higher ones. Most of the visible specks are galaxies housing countless stars. A few individual stars shine brightly in the foreground. Stars and compact galaxies create short, clear tones, while sprawling spiral galaxies emit longer notes that change pitch. The higher density of galaxies near the center of the image — the heart of this galaxy cluster, known as RXC J0142.9+4438 — results in a swell of mid-range tones halfway through the video. Hubble's Advanced Camera for Surveys and Wide Field Camera 3 acquired this image on Aug. 13, 2018. Video: https://ift.tt/2EO2woB Credit: NASA/Hubble/S