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NASAWebb's profile
NASA Webb Telescope
NASA Webb Telescope
NASA Webb Telescope
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@NASAWebb

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NASA Webb TelescopeVerified account

@NASAWebb

NASA's James Webb Space Telescope will #UnfoldTheUniverse and show us things we've never seen before.

webb.nasa.gov
Joined April 2009

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    1. NASA Webb Telescope‏Verified account @NASAWebb Jul 16

      Tomorrow is #WorldEmojiDay! We’d like you to guess some Webb-themed emojis and tell us what they are in the comments below ⬇️ We'll reveal the answers soon!pic.twitter.com/LQuD8xHESe

      Graphic with "Webb Emoji Quiz" title at the top. The 8 questions below are: 1. A spiderweb emoji followed by a telescope emoji. This is a 4 letter word followed by 9 letter word. 2. A sun emoji and shield emoji. 9 letter word. 3. An X emoji, O emoji, and Earth emoji. 9 letters. 4. A black circle emoji and a hole emoji. This is a 5 letter word, then a 4 letter word. 5. An asteroid emoji followed by a karate black belt emoji. 8 letter word followed by a 4 letter word. 6. A satellite emoji followed by a bus emoji. 10 letter word then a 3 letter word. 7. A red circle emoji and then an arrow pointing right emoji. 8 letters. 8. A rainbow emoji and a graph emoji. 12 letters.
      19 replies 62 retweets 329 likes
      Show this thread
    2. NASA Webb Telescope‏Verified account @NASAWebb Jul 16

      1. The first answer is “Webb telescope”! That’s us — the largest and most powerful space observatory ever built. Webb will look back to about 13.6 billion years ago, observing the first stars, galaxies and more. Latest milestones: http://go.nasa.gov/3ihiquc pic.twitter.com/6doygwcCHa

      Close-up image of the James Webb Space Telescope's gold-coated, honeycomb-like primary mirror in a fully unfolded state.
      3 replies 10 retweets 93 likes
      Show this thread
    3. NASA Webb Telescope‏Verified account @NASAWebb Jul 16

      2. It’s “sunshield”! The sunshield is a 5-layer, tennis court-sized structure that will always protect Webb's sensitive mirrors & instruments from the heat/light of the Sun, Earth and Moon. More: https://jwst.nasa.gov/content/observatory/sunshield.html …pic.twitter.com/KSAi6GDUdT

      The James Webb Space Telescope displaying its fully unfolded, silver metallic sunshield. The sunshield's 5 layers are visibly separated. Technicians in cleanroom suits stand on orange cranes to the left.
      1 reply 5 retweets 58 likes
      Show this thread
    4. NASA Webb Telescope‏Verified account @NASAWebb Jul 16

      3. This one is “exoplanet.” Webb will be able to study exoplanet atmospheres by breaking down light to learn more about the gases present. More: https://go.nasa.gov/2v3pupB pic.twitter.com/jK1pnavhfZ

      Artist conception of the 7 rocky exoplanets within the TRAPPIST-1 planetary system, located 40 light-years from Earth.
      3 replies 13 retweets 66 likes
      Show this thread
    5. NASA Webb Telescope‏Verified account @NASAWebb Jul 16

      4. Yep, it’s “black hole”! Webb’s infrared vision will be able to pierce through the dust surrounding the cores of galaxies, shedding light on the mysteries of supermassive black holes: https://go.nasa.gov/3m1mnoe pic.twitter.com/IghCdjReET

      This artist concept illustrates a supermassive black hole with millions to billions times the mass of our Sun. Supermassive black holes are enormously dense objects buried at the hearts of galaxies.
      2 replies 15 retweets 81 likes
      Show this thread
    6. NASA Webb Telescope‏Verified account @NASAWebb Jul 16

      5. The answer is the main “asteroid belt” — a huge cluster of asteroids between Mars and Jupiter. Webb will examine the composition of multiple asteroids within the belt to learn more about the history of our Solar System: https://go.nasa.gov/3rdPGH1 pic.twitter.com/CHlRkx5l5F

      Artist illustration showing the main asteroid belt, located between Mars and Jupiter within our solar system
      3 replies 6 retweets 66 likes
      Show this thread
    7. NASA Webb Telescope‏Verified account @NASAWebb Jul 16

      6. It’s “spacecraft bus,” one of Webb’s major components. This structure handles things such as steering the observatory, sending & receiving data from Earth, and converting sunlight into power: https://go.nasa.gov/3hMtYqx pic.twitter.com/aCnbCjPBPu

      Labeled diagram of the James Webb Space Telescope. The Science Instrument Module (ISIM) houses all of Webb's cameras and science instruments and is found behind the mirrors. The primary mirror is made up of 18 hexagonal segments made of beryllium and coated with gold to capture faint infrared light. The secondary mirror is extended in front of the primary mirror, and together they form the Optical Telescope Element (OTE). The multilayer sunshield has five layers to shield the observatory from the light and heat of the Sun and Earth. Underneath the sunshield are star trackers (small telescopes that use star patterns to target the observatory), the spacecraft bus (which contains most of the spacecraft steering and control machinery, including the computer and the reaction wheels), the Earth-pointing antenna (which sends science data back to Earth and receives commands from the Deep Space Network), and the solar array. A trim flap also helps stabilize the satellite.
      4 replies 11 retweets 82 likes
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    8. NASA Webb Telescope‏Verified account @NASAWebb Jul 16

      7. If you answered “redshift," you are right! Cosmological redshift refers to how light stretches into longer, "redder" wavelengths as the universe expands. Download this infographic: https://bit.ly/3hM1xZS pic.twitter.com/2hm5wfR6YX

      Detailed infographic. Title: What is Cosmological Redshift? Text of first section: When Space Expands, Light Stretches. Since the Big Bang, the physical space of the universe has been expanding. Stars and galaxies maintain their size, but the space between them grows. As light travels through expanding space, it is stretched to longer wavelengths. Text of second section: Redder Than Red. The longest visible wavelength is red. Beyond red are longer wavelengths that we can’t see, starting with infrared. When light is stretched by the expansion of space, we say that it is redshifted from its original wavelength to a longer, redder one. Text of third section: Seeing the Past. Telescopes with infrared detectors allow us to see the ancient light of the first galaxies, which has been redshifted over space and time. Third section's visualization compares how far back in time the Hubble Space Telescope can see compared to the Webb Telescope, which can peer at the first galaxies and first stars.
      4 replies 8 retweets 88 likes
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    9. NASA Webb Telescope‏Verified account @NASAWebb Jul 16

      8. It’s “spectrograph”/spectrometer! Webb has multiple spectrographs, which are used to disperse light from an object into a spectrum. Analyzing the spectrum of an object can then tell us about its properties, such as the composition of an exoplanet’s atmosphere.pic.twitter.com/q3Y8n4DHx0

      Detailed infographic titled "Spectroscopy with Webb." Text: Spectroscopy is a tool that astronomers use to better understand the physics of objects in space. Like a prism splits white light from the Sun into its color components (like a rainbow), Webb's spectrographs will dissect infrared light into its many wavelengths. This will provide detailed information about an object, such as how a galaxy moves or what molecules are present in an exoplanet's atmosphere. Graphic shows light from what is labeled as celestial objects (such as stars, nebulae, planets) entering Webb's instruments. From there, light gets split into different wavelengths and focused onto a detector, forming a spectrum. The spectra formed look like "barcodes." These "barcodes" can represent the signatures of different molecules. Scientists study spectra to analyze what atoms and molecules are present in the source (of light). Spectra can also reveal the temperature, density and motion of objects.
      ESA Webb Telescope and ESA
      7 replies 16 retweets 116 likes
      Show this thread
      NASA Webb Telescope‏Verified account @NASAWebb Jul 16

      Thanks for playing along! We hope you had fun ☺️ How many of these emoji puzzles did you guess right?

      2:00 PM - 16 Jul 2021
      • 24 Likes
      • Vyshnav Neyyan Krishna Dey Divyansh Singh Oskar B. Iorio Zuppa NASA Fan Claudio Abdurrehman
      2 replies 0 retweets 24 likes
        1. Zach Burnett‏ @zrb_umd Jul 16
          Replying to @NASAWebb

          “X O planet” and “asteroid belt” had me totally stumped, eventually I had to cheat lol

          0 replies 0 retweets 0 likes
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        1. I see, with glasses  🇳🇱‏ @zoutsteen Jul 16
          Replying to @NASAWebb

          If I expect a bell curve and want to see a bell curve then I also have to see two groups of participants, and most probably three.

          0 replies 0 retweets 0 likes
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