coreyspowell, to space
@coreyspowell@mastodon.social avatar

The center of our galaxy is streaked with puzzling filaments of radio emission, some of them hundreds of light years long.

Now we have a clue to how they work. At least one of them seems to be energized by a pulsar -- a tiny, rapidly spinning stellar corpse.

https://www.spaceaustralia.com/news/millisecond-pulsar-lurking-galactic-centre #space #science #astronomy #astrodon #nature

thomasconnor, to Astro
@thomasconnor@mstdn.social avatar

I have a Love/Hate (mostly Hate) relationship with the Ars Technica comments section, particularly where space is concerned, but it's heartening to see this pro-#ChandraXRay comment sitting on 94 updoots to 0 downdoots on the Hubble Gyro article.

It has been a bit disheartening the past three months to worry about our healthy, productive, and unique mission being terminated abruptly, and so it's good to see the public is getting that message.

https://www.savechandra.org/

#SaveChandra #Astrodon

mattkenworthy, to Astro
@mattkenworthy@mastodon.social avatar

Bonse+ present a new high contrast imaging algorithm “4S - Signal-Safe Speckle Subtraction” demonstrated with the pre-recovery of the exoplanet AF Lep b from 2011 NaCo data. The software webpage has an interactive figure where you can play with and see the improvement over PCA. Nice! #astrodon 🔭🪐 https://arxiv.org/abs/2406.01809

markmccaughrean, to photography
@markmccaughrean@mastodon.social avatar

Day 8

Finally managed to sit down & my laptop & catch up on email & some work commitments today.

Quite enjoyed it, to be honest, after two weeks of packing & unpacking 😬✌️

megschwamb, to Astro
@megschwamb@mastodon.online avatar

Hubble moves to single gryo mode. This moves ensures the space telescope can keep on observing well reserving/saving one of the good functioning gyros for the future. https://science.nasa.gov/missions/hubble/nasa-to-change-how-it-points-hubble-space-telescope/ #astrodon

megschwamb,
@megschwamb@mastodon.online avatar

A nice summary here as well of the gyros, HST pointing, and one gyro mode. Looks like HST will not be able to observe moving objects that are closer to Earth than Mars' orbit. https://science.nasa.gov/mission/hubble/observatory/design/hubble-one-gyro-mode/ #astrodon

coreyspowell, to space
@coreyspowell@mastodon.social avatar

Some planets are born alone, live alone, and die alone. The ESA's Euclid space telescope just found a nest of these loners in the constellation Orion.

At least the rogue planets have chosen a gorgeous spot to go about their business: This is where the newfound worlds are hanging out (toward the top of the image).

https://arxiv.org/abs/2405.13497 #space #science #astronomy #nature #astrodon

franco_vazza, to Astro
@franco_vazza@mastodon.social avatar

#SimulatedUniverses :
cosmic rays injected by different processes in my simulation - zoom into a void surrounded by filaments.
ENZO simulations on LEONARDO cluster at CINECA.
#astrodon #astronomy

video/mp4

CosmicRami, to Astro
@CosmicRami@aus.social avatar
CosmicRami, to Astro
@CosmicRami@aus.social avatar

The people I work with are doing cool shit!

I finally got a chance to interview fellow PhD'er Sarah Caddy from our faculty about this excellent new research and looking at stars and satellites (like the ISS) DURING DAYLIGHT HOURS!

THey're using a telescope called 'The Huntsman' and look how many eyes it has 🕷️🔭

https://www.spaceaustralia.com/news/seeing-stars-day

#SpaceAustralia #Astrodon #Astronomy #Telescopes

📸 Caddy et al. 2024

DavidBflower, to Astro
@DavidBflower@mastodon.social avatar

The Sun and sunspots. 1433UT 3 June 2024.

franco_vazza, to Astronomy
@franco_vazza@mastodon.social avatar

If you like to have an updated a broad view of how stars in galaxies form across time, or they form in the very early universe probed by JWST, you have two nice overview papers today on
https://arxiv.org/abs/2405.20803 by J. Freundlich and
https://arxiv.org/abs/2405.21054 by many people
to make you happy

image/png
image/png

mpi_grav, to Astro
@mpi_grav@social.mpdl.mpg.de avatar

The gravitational-wave detections continued over the weekend: @LIGO and Virgo observed two new possible signals from merging black hole binaries.

1️⃣ S240601aj is from a (luminosity) distance of 17.5 billion light years: https://gracedb.ligo.org/superevents/S240601aj/view/

2️⃣ S240601co is from a (luminosity) distance of 4.5 billion light years: https://gracedb.ligo.org/superevents/S240601co/view/

Overall, 105 probable signals have been observed in O4 so far.

Map of the entire sky showing the most likely regions of origin of the gravitational wave of the candidate signal S240601co. The orange spots cover a total area of about 1080 square degrees.

  • All
  • Subscribed
  • Moderated
  • Favorites
  • provamag3
  • thenastyranch
  • magazineikmin
  • ethstaker
  • InstantRegret
  • tacticalgear
  • rosin
  • love
  • Youngstown
  • slotface
  • ngwrru68w68
  • kavyap
  • cubers
  • DreamBathrooms
  • megavids
  • mdbf
  • modclub
  • GTA5RPClips
  • normalnudes
  • khanakhh
  • everett
  • cisconetworking
  • osvaldo12
  • anitta
  • Leos
  • Durango
  • tester
  • JUstTest
  • All magazines