EP 57 · 42:24

Nancy Grace Roman Space Telescope

From What’s Next in Science? Nobel Prizes, Space Missions & More

Episode
7/11
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The Nancy Grace Roman Space Telescope launched on August 30 and is traveling to the L2 Lagrange point, with first images expected in early 2027. Unlike the James Webb Space Telescope, which is described as a zoom lens peering deep into the universe, Roman is built as a wide-field survey instrument, more comparable to Hubble or the Vera Rubin Observatory, aimed at large-scale surveys covering dark matter, exoplanets via gravitational microlensing, and broad sky data for later analysis.

  1. 01

    Roman's mirror was originally built for a spy satellite that the military no longer needed and donated to NASA, and it is identical in size to the Hubble mirror.

  2. 02

    Roman has the same resolution as Hubble but a field of view about 100 times larger, letting it image a much bigger patch of sky at the same fidelity.

  3. 03

    The hosts frame Roman's approach like Vera Rubin's: capture large amounts of data first and let researchers analyze it afterward, as with the Sloan Digital Sky Survey.

Transcript

725 words · auto-generated from the episode video

42:24>> Uh because we have to fill some air time here, everybody. We're having a good time. We're having a break. We're going to get back to the rest of the fall season calendar. uh as we are going through some of the exciting things. The next thing we're going to talk about, we did not talk about the launch which occurred on August 30th. >> But we are going to do a little discussion on the Nancy Grace Roman Space Telescope which is already launched. What we're seeing now is a visual of how it's going to deploy as it reaches L2, Lrangee point 2, which is its destination. Uh, with the first

43:04images, again, space-based telescope, uh, very similar to the James Web Space Telescope in that it's space-based, but very different in what it's going to be capturing. We should be expecting images in early 2027, which is fantastic. So again, we're watching this deployment sequence here, which I think it's so good. >> Yeah. >> I mean, there's so many things that have to go right in order for this thing to work. And did you know that this started its life as a spy satellite? >> Ah, I was I saw some headlines about this. >> Yeah, it's pretty crazy. The the mirror is from a former spy satellite that the

43:45military was like, "Oh, we're not using anymore." or NASA was like, "Well, can we have it?" And then they put it on this on this thing. It's the mirror is actually identical to the Hubble >> mirror. >> Um, but the camera is very different, which is why this particular >> telescope is going to be very different. And there it is flying to L2, which is just behind the Earth >> where the James Web Space Telescope is hanging out. And we can see how far we're talking like we you know we talked about >> the the orbit of the moon >> well past and we talked about Artemis 2 and now it's crazy and we can sort of see the the orbital mechanics here a

44:26little bit. Yeah. >> Um >> it's just behind the Earth. If if the sun is in front this is behind and it's going to be orbiting that L2 point the Lrange 2 point. And so I saw this description where it talked about how we can think about the the James Webb Space Telescope as like a zoom lens on a camera looking really far away >> to the beginnings of the universe. And Roman is more like this wide angle >> survey camera very much like Hubble. >> Yeah. >> Trying to just capture >> although no I would say it's I would say it's very much like Vera Rubin. >> Ah that's a very good point. Yes. >> Right. Because Vera Rubin is one of these survey telescopes with a very large field of view. The Hubble is kind

45:07of like James Web in that it's still zoomed in. >> It's still zoomed in. That's very fair. No, that's very fair. And there's so many aspects >> of science with uh dark matter, huge exoplanet census through this microl lensing concept. There are so many things like we talked about in our Verub verin episode which was important is this idea that let's just capture all the data. >> Yeah. dump it down and then let people have at it. Yeah. And there's so much science you can do once we start actually doing these, you know, Sloan Digital Sky survey, Ver Rubin surveys, and now this this Roman and and the uh the sports analogy because for all the sports ball fanatics, I'm so determined to continue

45:50this ESPN for science concept. Um it's like we're in the process now where we're going through training camp as we prepare for the first season of this new signing. Uh and it's uh it's a very promising signing. Yes, it is. I mean the the thing that I think everyone is excited about is the fact that it has the same resolution as Hubble, but the field of view is something like 100 times larger. So it can see a bigger patch of the sky at the same fidelity. Um what I and a lot of astronomers are

From the episode
  1. EP 57

    What’s Next in Science? Nobel Prizes, Space Missions & More

    Nobel season, the value of basic research, and the space missions to watch: Roman, Mars’ moons and Mercury. Plus a tour of FFP’s favorite episodes.

    What’s Next in Science? Nobel Prizes, Space Missions & More

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