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12 posts total
 WebbVR from @spacetelescope just launched the 5.0 update, which adds images and video for 25 new JWST discoveries. If you have a VR headset sitting around, it's worth checking out. https://store.steampowered.com/app/891960/WebbVR_The_James_Webb_Space_Telescope_Virtual_Experience/ Mahalo to the folks at the Κ»Imiloa Astronomy Center for inviting a group of us from the STScI to come to the island of Hawai'i to collaborate, and for organizing a trip to the summit of Maunakea and a tour of the Keck observatories. What a special, beautiful, otherworldly place! I went on a tour of the NASA Goddard Space Flight Center today with a group of students. The highlight was seeing (parts of) the Nancy Grace Roman Space Telescope being tested in the massive clean room. From left to right, we see the spacecraft bus (where the computers, communications equipment, and propellent are housed), spare solar panels, and the coronagraph instrument (under the silver tent thing, near the wall of air filters). @kellylepo wow that's a lot of air filters... are they all blowing the same direction? Where does the clean air come in from? That's amazing and I have so many questions now. Goodbye #AAS244 and #MadisonWI. @kellylepo Thanks a lot Kelly for your coverage of the conference, that was most interesting and useful! For #caturday, a short film about this ginger gentleman cat who was hanging out outside my hotel in New Orleans. Danger? No, pets! He let me pet him until a large group of people passed by and scared him off. Heading off to the American Astronomical Society meeting #AAS243 in New Orleans, the biggest astronomy conference of the year. [Feel free to mute me or the hashtag for the next week if you don't want updates]
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 @kellylepo I was just talking about New Orleans to someone else earlier today - I really wish I could go there again. Happy Halloween π Here are the pumpkins I carved this year: An active red dwarf star and its gas giant planet. I call it an exo-pumpkin. Did you know that JPL has a whole gallery of beautifully illustrated Halloween posters, based on real science? Perfect to print and decorate your space, use as a wallpaper on your computer or phone, or as a Zoom background.
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 @kellylepo Oh my gosh. Exoplanet Travel Bureau, even. Fantastic. These are great, thanks! They remind me of these from NASA's Exoplanet Travel Bureau. https://exoplanets.nasa.gov/alien-worlds/exoplanet-travel-bureau/ Ever wonder how #JWST images go from raw telescope data to the beautiful press release images you see on social media? Check out this video series from @spacetelescope. I was on the team that put these together. In this first video, we show you what the raw data looks like and how you can download it yourself. Learn more about the process here: https://webbtelescope.org/contents/articles/how-are-webbs-full-color-images-made The second video about how #JWST images are made goes into the first steps of image processing: downloading the data, stretching it, and removing artifacts introduced by the telescope. Here is a diagram that shows the scale of this system and the flow of material. 1 au = the distance between the Earth and the Sun. Gas falls from the nebula onto the disk surrounding the forming star, before being pulled into the star itself. The protostar and the disk also work together to eject material, which carves a cavity above and below the disk. Credit: Tobin et al. 2012 The most frequently asked question that I get about #JWST images is: "Why do the stars look like that?". In other words: why are the stars "spikey"? The answer has to do with both the wave nature of light, the shape of the telescope's primary mirror, and the position of the struts that hold up the secondary mirror. The full infographic on JWST diffraction spikes can be downloaded here: https://webbtelescope.org/contents/media/images/01G529MX46J7AFK61GAMSHKSSN (1/7) The unique spikes around the bright stars in your favorite space images are known as diffraction spikes. For most reflecting telescopes, including JWST, diffraction spikes appear when light interacts with the primary mirror and struts that support the secondary mirror. While all stars can create these patterns, we only see spikes with the brightest stars (or point-like objects) when a telescope takes an image. (2/7) Hello #Astrodon! I guess it's time for an #introduction. I'm an outreach scientist at the Space Telescope Science Institute (yes, that is a real job, and yes it is mostly awesome). I get to talk about all of the cool science coming out of #JWST and lead the Subject Matter Expert engagement project for NASA's Universe of Learning. I'm mostly here to learn about the cool stuff you all are doing, so I don't have to read the arXiv myself.
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@kellylepo @spacetelescope
Will add it to my "to play" list, thanks!