Rev74205 planet4589.org
Jonathan's Space Report - Latest Issue
Jonathan's Space Report | Current Issue
A curated feed following favored science Skeeters' top-level posts. (Open to suggestions for additions to the group.) // Made at BlueskyFeeds.com
Feed on BlueskyFeeds Stats
- π Liked by 5 users
- π Updated over 1 year ago
- βοΈ Provider blueskyfeeds.com
Rev Science Likes over time
Like count prediction
The feed Rev Science has not gained any likes in the last month.
Feed Preview for Rev Science
LAUNCH at 0200 UTC Sep 1 of the first test flight of Xinghe Dongli (Galactic Energy)'s Zhishenxing-1 (Pallas-1) launch vehicle. It reportedly successfully placed a dummy payload in orbit; waiting for US tracking data to confirm.
0
1
5
I was rewatching some Stargate Universe episodes and my wife and I were talking about how great Dave was in it. If you're an actor, check him out.
David Blue @davidblue.bsky.social
Are you an actor? Want to be even better at it? Yeah, thatβs what I help people do. Get at me. ( π΅BlueStudios )
0
1
45
Why are we still utterly in the dark about SchrΓΆdinger's Senator?
30
47
359
Concert I almost got to see:
My mom and I drive from my childhood home an hour north of New York City to Eisenhower Park on Long Island to see a free concert by Harry Chapin.
The date was July 16, 1981.
Harry never made it to the concert as he died that day following a car accident on the LIE.
Dan Isaacs (Kelce's Version) @danisaacs.bsky.social
Best concerts I almost got to see: had tickets for: Rainbow Kitten Surprise @ Cat's Cradle in 2016 (date had a migraine) RKS in Raleigh 2017 (date had a migraine) Maybe a third time, i forget when i just gave up trying. And they're too big now, will never have the small venue experience. π
0
0
2
This is a pretty fair statement
πΊπΈππππͺ βπππ¦ππππΊπΈ π·ππ, πππππ @indyrefugee.bsky.social
Millions of people rely on the information they obtain via a search engine corporation which just proved it would alter digital reality if instructed to do so by those in political power. Thatβs some crazy shit, Google.
5
64
318
Happy birthday @frankconniff.bsky.social, who makes the world a better place despite inflicting Manos on us all!
Frank Conniff @frankconniff.bsky.social
Iβm 70 today. Feels like crossing a threshold into official old age. Iβm cool with it. Iβm publishing a new novel. Wrote a musical Xmas special due out later this year. Trace & I are launching a new movie riffing series. And Iβm part of the new MST3K. Making things is my birthday present to myself.
5
5
116
If you want to keep up with news about the newly launched Roman Space Telescope, NASA has a blog for it.
science.nasa.gov/blogs/roman/
π π§ͺ
science.nasa.gov
Nancy Grace Roman Space Telescope Archives - NASA Science
The Nancy Grace Roman Space Telescope blog is NASA's hub for the mission's launch updates, where all are invited for behind-the-scenes looks on Roman's road to launch and beyond. This flagship mission...
2
47
140
Roman: successful trans-Lagrange insertion and successful separation from the upper stage at 1157 UTC
2
12
104
The Roman Space Telescope is complementary to ESA's Euclid mission, which was launched in 2023. Euclid has twice as many pixels in its camera and will cover a broader area of sky, but Roman's bigger mirror will let it see fainter galaxies.
2
27
138
LAUNCH at 1125 UTC Aug 30 of a Falcon Heavy from Kennedy Space Center with NASA's Roman Space Telescope
2
16
69
Roman's second instrument is the coronagraph, which will allow direct imaging of exoplanets at angular distances of 0.15 to 1.5 arcseconds from their host star; the glare of the host star's light will be blocked by the coronagraph.
0
8
71
WFI's surveys will measure redshifts, supernovae, baryon acoustic oscillations and weak gravitational lensing to constrain models of dark energy
1
8
117
Roman's main camera is WFI, a 288-megapixel camera with a 1000 square arcminute field of view and HgCdTe photodiodes sensitive in the 0.4-2.3 micron band; the camera also enables low resolution spectroscopy with a grism and prism.
0
25
166
Roman has a special light weight 2.4m mirror donated to NASA by the National Reconaissance Office from its cancelled FIA spy sat program
2
14
79
Excited for the Roman launch!! But 4 AM is not for me, so I look forward to seeing updates in the morning π€π
2
0
16
Marian is a friend and a cool person and a wonderful singer and a fantastic song writer. You should listen to her stuff and buy it.
Marian Call @mariancall.bsky.social
If I had any brains at all, I'd have linked my Patreon, which is keeping me alive these days and helping me finish my next record: www.patreon.com/mariancall I don't do reward tiers, I just compose new music. I deliver it to you in the antiquated format of "albums", several tracks at a time.
www.patreon.com
2
4
53
I wrote to Lisa Bartusek, Roman team member and the author of the 2022 paper that Wikipedia cites for the 10500 kg design planning value. She tells me the actual launch mass is 9174 kg including 1116 kg of hydrazine. Result!
Jonathan McDowell @planet4589.bsky.social
Roman Space Telescope friends, can we have an *accurate* mass of RST for the record? At one point the plan was 8137 kg dry 9253 kg wet, but recent press says about 10500 kg wet? Really 2400 kg of hydrazine or what's the missing piece?
2
13
124
Per JPL Horizons, injection orbit for Roman will be 190 km x 1.2 million km x 33.7 deg, with C3 about -0.65 km2/s2 (this q was asked in the NASA presser but not answered)
1
4
51
No next mass level, ha, at least not yet.
But I *did* unroll this whole mass hierarchy onto one long webpage: testtubegames.com/higgs10β¦.
Go browse the universe of the small!
Andy Hall @testtubegames.com
In order to celebrate today's release of Agent Higgs 2... Let's explore the universe of the very small! We'll begin with an object of mass between 1-10 kg. Then go down by a factor of ten each post. And do that *32 times*! Let's start with something very familiar... a particle physics textbook.
0
2
2
It's Play Music On The Porch Day!
So get out there and send some harmonies out into your neighborhood. And speaking of harmonics... you'd better learn about waveforms, so you can music even better!
#ScienceHoliday
pudding.cool/2018/02/wave...
pudding.cool
Let's Learn About Waveforms
An interactive guide that introduces and explores waveforms.
0
3
2
Roman Space Telescope friends, can we have an *accurate* mass of RST for the record? At one point the plan was 8137 kg dry 9253 kg wet, but recent press says about 10500 kg wet? Really 2400 kg of hydrazine or what's the missing piece?
2
1
39