andrealuck, (edited ) to space
@andrealuck@fosstodon.org avatar

Jupiter's eye? Nope that’s Ganymede casting its shadow on the Great Red Spot

Full size 2500x1400: https://flic.kr/p/2pTbFeK

NASA ESA Hubble Space Telescope
Target: JUPITER-GRS-2
Proposal ID: 13631Amy Simon
Date: 2014-04-21
IDs: icia02epq, icia02eqq , icia02erq

Image created processing data from: https://mast.stsci.edu
Preview raw data and more info: https://archive.stsci.edu/cgi-bin/mastpreview?mission=hst&dataid=ICIA02EPQ

Credit:
Raw data: NASA/ESA/STScI/AmySimon
Image processing: Andrea Luck
#Space #Astronomy #Jupiter #Astrodon #Spacetodon

pomarede, to Kurzgesagt
@pomarede@mastodon.social avatar

Martian Cartography

Here is a 360° panorama captured by Curiosity at her current location, with North at center and South at both ends, on top of two large and small scale maps with her position.

There are many geological features in the panorama, can you find them in the maps?

CosmicRami, to Astronomy
@CosmicRami@aus.social avatar

I taunt astronomers in other EM regimes because unlike us cool radio astro folks, they mostly can't do astronomy during the day (where we can).

Now, folks from our uni (Macquarie Uni) and fellow PhD'er Sarah Caddy, are building telescopes for daytime obs.

THIS IS BETELGEUSE IN THE DAY! 🤯

To get these results, we've built a telescope that has MANY eyes, and named it after the huge spider we have here called 'The Huntsman' (which of course, has many eyes).

Some nice work coming from this 'scope!

More: shorturl.at/D3IKL

Paper: shorturl.at/kp2Xj

#Telescopes #Astronomy #Astrodon

Woman standing next to a telescope that is made up of many smaller telescopes giving an appearance of many eyes looking upwards

coreyspowell, to space
@coreyspowell@mastodon.social avatar

Exciting space-discovery alert!

Gliese 12 b is an Earth-size planet orbiting in the temperate zone around a nearby, stable red dwarf star. It's a Rosetta Stone world that will tell us a lot about how many superficially earthlike planets actually have the right conditions for life.

Are we rare? Are we common? Let's find out.

https://www.birmingham.ac.uk/news/2024/nasas-tess-finds-a-world-sized-between-earth-and-venus #space #science #astronomy #astrodon #life #aliens

coreyspowell,
@coreyspowell@mastodon.social avatar

If you're the kind of person who likes to go deep, I got you.

The full research paper is freely available online, providing the technical details of how astronomers found the Earth-size planet Gliese 12b, and what we really do (and do not) know about it.

https://academic.oup.com/mnras/article/531/1/1276/7679807

ChandraScience, to Astro
@ChandraScience@astrodon.social avatar

In November, we asked the community:

Are there major initiatives for which the capabilities of @ChandraScience are absolutely required to address fundamental questions about our current understanding of the Universe that would represent a crucial missed opportunity if they are not completed during Chandra's lifetime?

The community responded, and we are pleased to announce two Chandra Legacy Programs
https://cxc.harvard.edu/CLP/

#Astrodon #Astrophysics #XraysAreTheBestRays #ChandraXRay

franco_vazza, to Astro
@franco_vazza@mastodon.social avatar

Non-thermal energy components evolving from z=4 to z=0 in the last of my #SimulatedUniverses
The combination of all these, for the case of relativistic electrons, gives the total synchrotron emission from the cosmic web, from galaxies to filaments.

#astrodon #astronomy

video/mp4

ec_euclid, to Astronomy German
@ec_euclid@astrodon.social avatar

One of 's new Early Release Observation images (Messier 78) is featured as today's picture of the day: 🤩

https://apod.nasa.gov/apod/ap240524.html

megschwamb, to Astro
@megschwamb@mastodon.online avatar

Did you ever want to download a AAS Research Note (https://iopscience.iop.org/journal/2515-5172) as a PDF. That feature is now available according to @Chrislintott the feature is now available. yay! "It's hidden under the 'Article and Author information' tab, but it's there! " #astrodon

coreyspowell, to space
@coreyspowell@mastodon.social avatar

I love serendipitous art!

ESA's Euclid space telescope is designed to map dark matter and dark energy across the universe. But as it is getting started, Euclid is also sending back gorgeous cosmic snapshots.

https://www.esa.int/Science_Exploration/Space_Science/Euclid/ESA_s_Euclid_celebrates_first_science_with_sparkling_cosmic_views

Euclid’s image of galaxy cluster Abell 2390 reveals more than 50 000 galaxies and shows a beautiful display of gravitational lensing, depicting giant curved arcs on the sky – some of which are actually multiple views of the same distant object. Euclid will use lensing (where the light travelling to us from distant galaxies is bent and distorted by gravity) as a key technique for exploring the dark Universe, indirectly measuring the amount and distribution of dark matter both in galaxy clusters and elsewhere. Euclid scientists are also studying how the masses and numbers of galaxy clusters on the sky have changed over time, revealing more about the history and evolution of the Universe.
Here, Euclid captures galaxies evolving and merging ‘in action’ in the Dorado galaxy group, with beautiful tidal tails and shells seen as a result of ongoing interactions. Scientists are using this dataset to study how galaxies evolve, to improve our models of cosmic history and understand how galaxies form within halos of dark matter. This image showcases Euclid’s versatility: a wide array of galaxies is visible here, from very bright to very faint. Thanks to Euclid’s unique combination of large field-of-view, remarkable depth, and high spatial resolution, it can capture tiny (star clusters), wider (galaxy cores) and extended (tidal tails) features all in one frame. Scientists are also seeking distant individual clusters of stars known as globular clusters to trace their galactic history and dynamics.
In this image Euclid showcases NGC 6744, an archetype of the kind of galaxy currently forming most of the stars in the local Universe. Euclid’s large field-of-view covers the entire galaxy, capturing not only spiral structure on larger scales but also exquisite detail on small spatial scales. This includes feather-like lanes of dust emerging as ‘spurs’ from the spiral arms, shown here with incredible clarity. Scientists are using this dataset to understand how dust and gas are linked to star formation; map how different star populations are distributed throughout galaxies and where stars are currently forming; and unravel the physics behind the structure of spiral galaxies, something that is still not fully understood after decades of study.

astro_jcm, to Astro
@astro_jcm@mastodon.online avatar

One night at ESO's Extremely Large Telescope

https://youtu.be/ytVC8lBxNaU

🎥 B. Häußler/ESO

franco_vazza, to random
@franco_vazza@mastodon.social avatar

A few stunning images just released in papers from the @ec_euclid consortium:

  1. this from https://pubs.euclid-ec.org/public/coordinated_release/PUBateketal.pdf

ec_euclid, to Astronomy
@ec_euclid@astrodon.social avatar

Finally, after months of work, the Early Release Observation images, data, first science results, and mission reference papers have been released. You can read more in our blog post, which has links to the papers, the press releases, and everything else:

https://www.euclid-ec.org/first-early-release-observation-science-and-reference-paper-release

elsa_euclid, to Astro
@elsa_euclid@astrodon.social avatar
elsa_euclid, to Astro
@elsa_euclid@astrodon.social avatar

And here it is! Euclid press release on the early release observations #astrodon https://www.euclid-ec.org/public/press-releases/first-science-results-and-exclusive-ero-data/

pomarede, to Cosmology
@pomarede@mastodon.social avatar

Introducing the Mass Hyperplane (MH), to measure the peculiar velocities of 2496 galaxies at z < 0.12 from the GAMA sample

by Mustafa Burak Dogruel and co-authors
https://arxiv.org/abs/2405.10866

#Cosmology #galaxies #MassHyperplane #TullyFisher #FundamentalPlane #cosmicflows #PeculiarVelocities #Hubble #HubbleConstant #GAMA #arXiv #astroph #astronomy #astrophysics #astrodon #science #STEM

franco_vazza, to mastodon
@franco_vazza@mastodon.social avatar

It is annoying in #mastodon to still keep missing a lot of interesting posts by people in my list, which live in an almost specular time zone. although I have put them in dedicated lists, if I forget to check them regularly, their stuff is just lost to me.
So the only thing is to click on the 🔔 for each of such profiles. That however messes up with the notifications.
ffff....

#astrodon

harcel, to Astro
@harcel@astrodon.social avatar

Why can't early black holes not grow by eating dark matter? No radiative pushback, but perhaps too small a cross-section? Would that depend on DM temperature and particle mass, but already excluded by candidate parameters?

I thought I was trained in this #astro business, but... 🤷🏼‍♂️
#Astrodon

CosmicRami, to Astro
@CosmicRami@aus.social avatar

For the first time since Nov. 2023, two of the four instruments aboard the Voyager 1 spacecraft (currently ~24,472,559,000 km away or about 22.5 light hours from us) have started re-transmitting science data!

These spacecraft are older than me and still going strong.

Go you good thing!

https://blogs.nasa.gov/voyager/2024/05/22/voyager-1-resumes-sending-science-data-from-two-instruments/

#Astrodon

kellylepo, to Astronomy
@kellylepo@astrodon.social avatar

The summer 2024 NASA's Astrophoto Challenge is now open! This summer's target: Cassiopeia A.

Make your own images with real NASA data using a simple, online tool. Then, submit your image. Standout entries are featured on the website and get comments from expert judges.

I find all of your technicolor space images delightful. Please go make some weird space pictures:
https://mo-www.cfa.harvard.edu/OWN/astrophoto/index.html

#astronomy #space #astrodon #STEM

megschwamb, to Astro
@megschwamb@mastodon.online avatar

The LSST Camera is at the summit. Construction of the Vera C. Rubin Observatory is on the path to completion - The camera was the last major piece of equipment/component - still lots to do, but we're getting closer to the start of commissioning and operations with Rubin Observatory and LSSTCam! Well done to all the @VRubinObs construction project and observatory staff and collaborators who made this milestone happen! https://rubinobservatory.org/news/camera-arrives-chile #astrodon

megschwamb,
@megschwamb@mastodon.online avatar

Here's a video of the entire process of shipping LSSTCam including a chartered airplane https://youtu.be/HwyjOHM607Y?feature=shared #astrodon

ec_euclid, to Astronomy
@ec_euclid@astrodon.social avatar

Tomorrow, 23 May, 12:00 CEST, and the @ec_euclid will present 15 papers, including first results:

5x reference papers about the main mission, the instrumentation, and related cosmological simulations

10x Early Release Observation papers, ranging from ... near to far

At the same time ESA will make 5 new ERO images public and the underlying science images. This programme was observed before the start of Euclid's main survey.

Stay tuned!

elsa_euclid, to science
@elsa_euclid@astrodon.social avatar

The @ec_euclid consortium have a big spash coming tomorrow... Watch this space for the first results from Thursday, 23 May, 12:00 CEST, and shortly afterwards on arXiv...

mattkenworthy, to Astro
@mattkenworthy@mastodon.social avatar

Ex-student paper day! Sutlieff et al. (2024) using a gvAPP coronagraph to suppress diffraction from the primary star so that the variability of a faint substellar companion can be measured to 3% precision and a 3.2 hour periodic variability detected one night but disappears the next! 🔭🪐 #astrodon https://arxiv.org/abs/2405.12271

Many light curves showing the change in brightness of the BD companion as a function of wavelength. Some wavelengths don't change at all over the 32 hours of monitoring, whilst other wavelengths show very large variations from hour to hour.

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