Recent comments in /f/space
danielravennest t1_j7mbh4v wrote
Reply to comment by Crontab in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
We use survey telescopes to look for asteroids. Typically they have been much smaller than the research telescopes. This is about to change with the Rubin Observatory which has an 8 meter mirror, putting into the research size range.
This telescope has a 3200 megapixel camera, and a wide field of view. It will survey the sky frequently, looking for anything that changes (moving asteroids and comets, variable stars, planetary transits, etc.)
entered_bubble_50 t1_j7mavsb wrote
Reply to comment by Sdwingnut in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
To be fair, they can't actually resolve it at this distance - it's just a dot.
danielravennest t1_j7map3d wrote
Reply to comment by Bubbagumpredditor in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
More than the half billion dollar Rubin Observatory with its 3200 megapixel camera that will up the discovery of asteroids by a factor of ten?
[deleted] t1_j7makip wrote
Reply to comment by [deleted] in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
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[deleted] t1_j7mahod wrote
Reply to comment by [deleted] in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
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EvilWayne t1_j7m9m2j wrote
Reply to comment by Hairy_Al in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
Wow, I never heard of this film and I'm a big fan of horrible and cheesy scifi.
I must now see this movie.
Couldbehuman t1_j7m8o5p wrote
Reply to comment by open_door_policy in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
I think you're confusing Mars with the love interest of that song by The Plimsouls.
theangryintern t1_j7m7cr9 wrote
Reply to The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
So is it "Washington Monument" sized or "Colosseum in Rome" sized because those are two very different things?
[deleted] t1_j7m64gf wrote
Reply to comment by [deleted] in Rolls-Royce Nuclear Engine Could Power Quick Trips to the Moon and Mars by darthatheos
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Toebean_Farmer t1_j7m5e36 wrote
Reply to comment by Bubbagumpredditor in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
Then we’ll start cataloging the compositions of each, and soon we’ll have a whole database full asteroids just ready for the mining!
Ashamed-Web-3495 t1_j7m4b1f wrote
Reply to comment by Sdwingnut in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
That soccer pitch with slight lighter red grass than the rest of the surface even!
saluksic t1_j7m1g3p wrote
Reply to comment by Sdwingnut in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
And, like, maybe we *could* see a soccer pitch next to mars if it was glowing incandescently. But this is just a rocky asteroid, not particularly warm, caught on the near-vis IR camera. That's pretty dang cool
Miserable-Deal-5703 t1_j7lykkg wrote
Reply to comment by cjameshuff in Rolls-Royce Nuclear Engine Could Power Quick Trips to the Moon and Mars by darthatheos
Thank you for a pretty cool explanation!
Cesum-Pec t1_j7lv6eq wrote
Reply to comment by Hairy_Al in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
Well done. My 50 yo memories aren't perfect but wasn't that far off
[deleted] t1_j7luq85 wrote
Thorazine88 t1_j7ltmx5 wrote
Reply to comment by teryret in How does water factor into rocket launches? by teryret
I believe the issue is “Which is better: 1. A water deluge system which pours a huge amount of water between the rocket exhaust and the concrete pad. 2. A pool of water underneath the rocket exhaust.” I’m guessing a pool of water wouldn’t be as good because the rocket exhaust would blow hot water and steam everywhere in an uncontrolled manner.
Crontab t1_j7lt1pz wrote
Reply to comment by StayYou61 in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
Telescope time is Uber precious, and I'm guessing it's easier for you proposal to get approved if you're not essentially shooting in the dark with your time.
Foxalec t1_j7lsx60 wrote
Reply to comment by [deleted] in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
I think it’s a huge asteroid :,)
smallproton t1_j7lqrxc wrote
Reply to comment by Sdwingnut in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
That's a fantastic comparison to make one realize how insane the distances and sensitivities are!
Thank you!!
[deleted] t1_j7lqb5e wrote
Reply to comment by Sdwingnut in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
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Hairy_Al t1_j7lov2n wrote
[deleted] t1_j7lokut wrote
Reply to comment by ActualMis in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
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Hairy_Al t1_j7lok7a wrote
Reply to comment by EvilWayne in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
Definitely not that. I remember the film we're talking about. Little things like the light switch being on the opposite side of the door as silly stuff like that. Can't remember much else about it
Edit:found it
https://en.m.wikipedia.org/wiki/Doppelg%C3%A4nger_(1969_film)
Hairy_Al t1_j7lo1ws wrote
Reply to comment by open_door_policy in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
Between 34.8 million and 250 million
[deleted] t1_j7mbxw7 wrote
Reply to comment by StayYou61 in The James Webb Space Telescope just found an asteroid by total accident, its smallest object yet by pecika
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