Benjamin Carr, Ph.D. 👨🏻💻🧬 · @BenjaminHCCarr
1037 followers · 2750 posts · Server hachyderm.io
A Mysterious Light In #Space Keeps Switching On and Off. Now, We Know Why.
A dozen of the world’s best #telescopes were enlisted to explain the behavior of object #J1023 that has puzzled scientists for more than a decade.The campaign involving 12 telescopes has revealed that these cosmic switches are flipped by energetic interactions between a jet and a disk shaped by a #pulsar, a type of pulsing dead #star. https://www.vice.com/en/article/jg5dw8/a-mysterious-light-in-space-keeps-switching-on-and-off-now-we-know-why
#space #telescopes #j1023 #pulsar #star
Khurram Wadee ✅ · @mkwadee
1532 followers · 14877 posts · Server mastodon.org.uk#HESS #Telescopes Explore the #High-Energy #Sky
#Astronomy #Picture of the Day
https://apod.nasa.gov/apod/ap230906.html
https://www.youtube.com/watch?v=QmCFdFGNwmo
#hess #telescopes #high #sky #astronomy #picture #apod
steve dustcircle ⍻ · @dustcircle
359 followers · 11640 posts · Server masto.aiNewly Spotted #Comet May Soon Be Visible Without #Telescopes
https://gizmodo.com/nishimura-comet-may-soon-be-visible-without-telescopes-1850797275
R. Nicole · @appagalcrochet
428 followers · 2814 posts · Server mstdn.social
Saturn looks like a tiny gold flying saucer going across my viewfinder! No pics yet but camera attach is on back order.
Collimation was a cinch!
🤓😁
#telescopes #clearskies #Astronomy
Mike Burr · @mburr
10 followers · 168 posts · Server stranger.social3/3> With regard to the vacuum:
1. maintain the vacuum (actively) until you don't at which case it's "broken" (??)
2. somehow stiffen the unsupported mylar
3. combine: a low vacuum has more forgiving error bars and is easier to maintain
I can see a couple of mists of superglue might adhere the mylar enough. doing that N times might obviate the vacuum.
I imagine the contact points forming a beehive with more hexagons where smaller radius.
#astronomy #physics #telescopes #maker #3dprinting
Mike Burr · @mburr
10 followers · 166 posts · Server stranger.social2/3> I cannot exactly gauge how precise you can get shaping the scaffold without going crazy with equipment.
The shape of a mylar drum skin on a cylinder under vacuum surely is not perfect. The scaffold serves two purposes:
Support the mylar in select places +/-Z to hold shape
Correct for the imperfections of a mylar vacuum drum skin
#astronomy #physics #telescopes #maker #3dprinting
Mike Burr · @mburr
10 followers · 166 posts · Server stranger.social1/2> I would like to investigate building a usable Newtonian primary mirror using 'novel methods'.
If you haven't seen mylar concave mirrors go look it up.
Plans: 3d print scaffold to support a sheet of mylar, seated (glue?) with careful tolerance. The finished scaffold itself needs to be "optical tolerances". So the "scaffold" needs to form the right shape (parabolic) minus a sheet laying on top of mylar thickness.
Fools' errand?
#astronomy #physics #telescopes #maker #3dprinting
Benjamin Carr, Ph.D. 👨🏻💻🧬 · @BenjaminHCCarr
1003 followers · 2615 posts · Server hachyderm.io#Cyberattack shutters major #NSF-funded #telescopes for more than 2 weeks
A mysterious “cyber incident” at #NationalScienceFoundation center coordinating international astronomy efforts has knocked out of commission major telescopes in #Hawaii and #Chile since the beginning of August. Officials have halted all operations at 10 telescopes, and at a few others only in-person observations can be conducted.
https://www.science.org/content/article/cyberattack-shutters-major-nsf-funded-telescopes-more-2-weeks
#cyberattack #NSF #telescopes #nationalsciencefoundation #hawaii #chile
:rss: Hacker News · @ycombinator
49 followers · 4228 posts · Server rss-mstdn.studiofreesia.comNew type of star gives clues to mysterious origin of magnetars
https://www.eso.org/public/news/eso2313/
#ycombinator #ESO #eso_org #Astronomy #Astrophysics #Astronomie #Suedsternwarte #telescopes #detectors #comets #planets #stars #galaxies #nebulae #universe #NTT #VLT #VLTI #ALMA #ELT #La_Silla #Paranal #Garching #Chile
#ycombinator #eso #eso_org #astronomy #astrophysics #astronomie #suedsternwarte #telescopes #detectors #comets #planets #stars #galaxies #nebulae #universe #ntt #vlt #vlti #alma #elt #la_silla #paranal #garching #chile
IT News · @itnewsbot
3598 followers · 269517 posts · Server schleuss.online
Rogue planets may be more numerous than stars in our galaxy - Enlarge / An artist's conception of an ice-encrusted rogue planet. (cre... - https://arstechnica.com/?p=1959519 #rogueplanets #exoplanets #telescopes #astronomy #science
#science #astronomy #telescopes #exoplanets #rogueplanets
Tech news from Canada · @TechNews
924 followers · 24557 posts · Server mastodon.roitsystems.caArs Technica: Rogue planets may be more numerous than stars in our galaxy https://arstechnica.com/?p=1959519 #Tech #arstechnica #IT #Technology #rogueplanets #exoplanets #telescopes #astronomy #Science
#Tech #arstechnica #it #technology #rogueplanets #exoplanets #telescopes #Astronomy #science
Queer Lit Cats · @QLC
323 followers · 11894 posts · Server mastodon.roitsystems.caNew Yorker: What the Webb Space Telescope Will Show Us Next https://www.newyorker.com/news/the-new-yorker-interview/what-the-webb-space-telescope-will-show-us-next #NewYorker #News/TheNewYorkerInterview #Discoveries #Telescopes #Universe #BigBang #Space #NASA
#newyorker #news #discoveries #telescopes #universe #bigbang #space #nasa
Ansgar Schmidt :verified: · @Ansi
527 followers · 1672 posts · Server mastodon.cloudEuclid Reaches L2, Shares its First Test Image https://www.universetoday.com/162631/euclid-reaches-l2-shares-its-first-test-image/ #euclidmission #telescopes #cosmology #galaxies
#euclidmission #telescopes #cosmology #galaxies
IT News · @itnewsbot
3557 followers · 268546 posts · Server schleuss.onlineCommunal stargazing using your phone: The Unistellar eQuinox 2, reviewed - Enlarge / The eQuinox 2 is ready for sundown in central Illinois. No ey... - https://arstechnica.com/?p=1957544 #telescopes #unistellar #astronomy #cosmology #equinox2 #space #tech
#tech #space #equinox2 #cosmology #astronomy #unistellar #telescopes
Tech news from Canada · @TechNews
890 followers · 23627 posts · Server mastodon.roitsystems.ca
Ars Technica: Communal stargazing using your phone: The Unistellar eQuinox 2, reviewed https://arstechnica.com/?p=1957544 #Tech #arstechnica #IT #Technology #telescopes #Unistellar #astronomy #cosmology #eQuinox2 #Space #Tech
#Tech #arstechnica #it #technology #telescopes #unistellar #Astronomy #cosmology #equinox2 #space
Elizabeth Howell PhD (she/her) · @howellspace
1165 followers · 393 posts · Server qoto.org
Celebrate 400 years of #moon maps for #Apollo11 anniversary (gallery).
#Telescopes, ship navigation and #eclipses spurred the first detailed charts of Earth's nearest neighbor.
https://www.space.com/nasa-apollo-11-400-years-moon-mapping-gallery
#moon #apollo11 #telescopes #eclipses
Hacker News · @ycombinator
5 followers · 888 posts · Server rss-mstdn.studiofreesia.comTime lapse of this week's large sunspot
https://www.astrobin.com/full/qti3dk/0/
#astrophotography #astronomy #telescopes
#astrophotography #astronomy #telescopes
Tech news from Canada · @TechNews
698 followers · 20870 posts · Server mastodon.roitsystems.caWired: Here Comes Euclid, the Telescope That Will Search for Dark Energy https://www.wired.com/story/euclid-the-telescope-search-for-dark-energy/ #Tech #wired #TechNews #IT #Technology via @morganeogerbc #EuropeanSpaceAgency #Science/Space #astrophysics #EyeintheSky #Spacecraft #telescopes #darkenergy #darkmatter #cosmology #Science #space
#Tech #wired #technews #it #technology #europeanspaceagency #science #astrophysics #eyeinthesky #spacecraft #telescopes #darkenergy #darkmatter #cosmology #space
Tech news from Canada · @TechNews
692 followers · 20719 posts · Server mastodon.roitsystems.ca
Wired: At Last, There’s Evidence of Low-Frequency Gravitational Waves https://www.wired.com/story/evidence-of-low-frequency-gravitational-waves/ #Tech #wired #TechNews #IT #Technology via @morganeogerbc #Science/PhysicsandMath #radiotelescopes #astrophysics #telescopes #blackholes #Astronomy #Science #Gravity #physics #WaveOn #stars #space
#Tech #wired #technews #it #technology #science #radiotelescopes #astrophysics #telescopes #blackholes #Astronomy #gravity #physics #waveon #stars #space
CosmicRami · @CosmicRami
1165 followers · 561 posts · Server aus.social
In about a week, an important chapter in #RadioAstronomy and Australian space heritage will come to a close.
The Molongolo Observatory, operating for 58 years and the last Mills Cross in Aust. will cease operations. 😭
The telescope recently had received some upgrades, but after almost 60 years of operations - its time has come.
It's had an incredible run, hosting over 50 PhDs, mapping the southern skies and training a generation of radio astronomers.
The design was pioneered by the work of Bernard Mills, with a prototype, known as the Mills Cross once developed at the Fleurs field station in Badgery's Creek in Sydney - where the new airport is currently being built.
It's also where a memorial and a small container of ashes of the radio astronomer pioneer, Grote Reber, are located (other telescopes also have Reber memorials too).
Over its time, this telescope has made such a significant impact in astronomy.
Besides the historical impact, MOST also was in recent times doing some excellent FRB science, and of course, all these years of knowledge in the radio astro community + instrumentation + survey results will go towards the SKA project.
So, now we say goodbye to a fantastic piece of Australian science infrastructure that holds a special place in the hearts of many who have come to know this gentle giant.
But we celebrate and thank its huge contribution to radio astronomy for nearly 60 years!
https://spaceaustralia.com/feature/iconic-australian-telescope-upgraded-future-science
📸 UTMOST / B. Pedersen / TROVE https://nla.gov.au/nla.obj-137782825/view
#SpaceAustralia #Astrodon #Telescopes #Scienec #SpaceHeritage
#radioastronomy #SpaceAustralia #Astrodon #telescopes #scienec #spaceheritage