Recent comments in /f/space

Bob_Sconce t1_jbb313v wrote

So, here's the question: In the big-bang, everything ejected from this one point and spread throughout the cosmos. We are, at this moment, some distance from where that occurred at a location I'll call "X." This photo claims to show light emitted not long after the big bang. It's not possible to travel faster than light.

Q:. How did we get to X faster than the light?

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jesse3339 t1_jbaxqnc wrote

I had a shower thought the other day that if an object in space were to travel through a “worm hole” ending up closer to an observer, the observer would then be able to view the same object, at some time, for the difference in time/space traveled. I wonder if this might be it, but I didn’t read the article lol.

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bad_syntax t1_jbas0op wrote

I *LOVE* time lapsed stuff, in every way. The dozen cameras in my house all take a picture every minute, and then ad midnight make a movie out of it, EVERY DAY. Its AMAZING.

I saw an animated nebula once, and it looked really cool, even if just a few frames.

I'd LOVE to see the JWT focus on some nebula or something dynamic out there in the cosmos and get like a pic a day for a month or something, or maybe a pic a year for a decade, I dunno. I just bet the end results are spectacular.

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RevengencerAlf t1_jbak72r wrote

It's all one picture. Due to gravitational lensing light emitted 1000 days apart in time reached the telescope at the same time. Basically the light from the first picture took 1000 days longer to reach us because the fabric of spacetime was curved forcing it to take a longer path while light emitted 1000 days later missed that gravity source so it was able to take the short route and get here at basically the same time.

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CBSnews OP t1_jbahefp wrote

Here's a preview of the article:

NASA's Curiosity rover has captured "sun rays" on Mars for the first time, the agency says.

The footage was taken on Feb. 6, NASA said, and showed the phenomenon as the sun set on the planet. This is the first time, NASA said, that the sun rays, also known as crepuscular rays, have been viewed so clearly.

The moment was captured as the rover conducted a twilight cloud survey, building on previous observations of clouds. Previously recorded images of Martian clouds show them as being made of water ice and hovering no more 37 miles above Mars' surface. The new images captured by Curiosity appear to show clouds at a "higher altitude, where it's especially cold," NASA said, suggesting that the clouds are made of carbon dioxide ice, or dry ice.

The moment was captured as the rover conducted a twilight cloud survey, building on previous observations of clouds. Previously recorded images of Martian clouds show them as being made of water ice and hovering no more 37 miles above Mars' surface. The new images captured by Curiosity appears to show clouds at a "higher altitude, where it's especially cold," NASA said, suggesting that the clouds are made of carbon dioxide ice, or dry ice.

Read more: https://www.cbsnews.com/news/nasas-curiosity-rover-spots-sun-rays-on-mars-for-the-first-time/

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daggada t1_jbabe9o wrote

I think for that to really come into play, you need to be looking pretty far. Like it's not something you'll really see in the stars you see at night with your eyes in our local galaxy.

But sure, looking into deep intergalactic space, which requires a decent telescope, it's probably not all that uncommon. Take a look at some of Webbs early pics, you'll see lots of warped and stretched images which I believe are examples of that phenomenon as well. And those are just in small patches of space.

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undeleted_username t1_jba0ter wrote

Due to gravitational lensing, the light from the galaxy took three different routes to reach us, so we see the same galaxy three times on the same picture; also, as each route has a different length, light took a different amount of time to reach us.

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