Search
Items tagged with: astrodon
How far did astronomers travel world-wide for conferences in 2019 in total? More than 300 times to the Moon & back! Or, to put it in astronomical units: more than 1.5 AU, so to the Sun and halfway back!
▶️ https://doi.org/10.1093/pnasnexus/pgae143
A 🧵 summarizing our paper "Astronomy’s climate emissions: Global travel to scientific meetings in 2019" - published today, lead by Andrea Gokus (who also wrote the draft for this thread) and @knud, with many people, among them @leo & me, contributing:
1/6
Wooooaaahhhh!
The new JWST image of a small bit of the Horsehead Nebula is INCREDIBLE.
To give you a sense of scale here, here’s an image of the nebula from my backyard. That small white box … that’s the JWST field of view! 🤯🤯🤯
Look at ALL those galaxies, all in that tiny white box.
JWST image credit: ESA/Webb, NASA, CSA, K. Misselt and A. Abergel.
[updated]Dodgy image with white boxes is my own.
#JWST #SpaceTelescope #HorseheadNebula #Astronomy #Galaxies #Astrodon
Our galaxy seems to be full of "rogue" planets wandering alone between the stars.
A new observation from NASA's TESS space telescope hints that these dark worlds might hugely outnumber the normal (?) planets, like Earth, that bask in the warmth and light of a sun.
https://astrobiology.com/2024/04/searching-for-free-floating-planets-with-tess-i-discovery-of-a-first-terrestrial-mass-candidate.html #space #science #astronomy #astrodon
Searching For Free-Floating Planets with TESS: I. Discovery of a First Terrestrial-Mass Candidate - Astrobiology
Though free-floating planets (FFPs) that have been ejected from their natal star systems may outpopulate their bound counterparts in the terrestrial-mass rangeKeith Cowing (Astrobiology)
Why is Methane Seeping on Mars?
The most surprising revelation from NASA’s Curiosity Mars Rover — that methane is seeping from the surface of Gale Crater — has scientists scratching their heads.
#Mars #curiosity #rover #methane #GaleCrater #geology #geophysics #regolith #soil #salt #chemistry #astrodon #space #science #STEM
Why is Methane Seeping on Mars? NASA Scientists Have New Ideas - NASA Science
The most surprising revelation from NASA’s Curiosity Mars Rover — that methane is seeping from the surface of Gale Crater — has scientists scratching their heads. Living creatures produce most of the methane on Earth.science.nasa.gov
We recently released version 2.1 of the #ChandraXRay Source Catalog!
In short, everything we observed that was released publicly prior to the end of 2021 has been reduced, processed, and made available for easy consumption. With over 400,000 individual sources and covering 730 square degrees, the CSC opens the X-ray sky to all astronomers -- even if you've never looked at an X-ray photon before.
Learn more:
https://chandra.si.edu/blog/node/879
#Astrodon #XRaysAreTheBestRays
These four captivating photos were taken from space, offering breathtaking perspectives of our planet Earth. Each image provides a unique view that invites viewers to marvel at the beauty and complexity of our world from a perspective that few ever get to experience firsthand.
#EarthDay #EarthDay2024 #Earth #Science #Astronomy #Astrodon #Space #PaleBlueDot #HappyEarthDay
🧵 1/2
The formation of transiting circumplanetary debris discs from the disruption of satellite systems during planet-planet scattering
Several stars show deep transits consistent with discs of roughly 1 Solar radius seen at moderate inclinations, likely surrounding planets on eccentric orbits.arXiv.org
Heads Up!
Extremely Rare #citizenScience opportunity for #astronomy #astrophysics #astrodon #universeodon enthusiasts!
This year, there will be a nova, before or by September, as bright as the North Star.
After peak brightness it will remain bright enough, for several days, to observe with binoculars.
You can help research scientists with observational details.
https://www.seti.org/be-first-see-once-lifetime-stellar-explosion
https://blogs.nasa.gov/Watch_the_Skies/2024/02/27/view-nova-explosion-new-star-in-northern-crown/
#Global #education #science #fediScience #scienceMastodon #lifelongLearning
1/ Most massive stellar #BlackHole in our galaxy found! With 33 times the mass of the Sun, this is the most massive black hole formed after the collapse of a star that we've found so far in the #MilkyWay.
ESA's Gaia mission found it via the wobble it induces on a star orbiting it, and data from ground-based telescopes helped confirm its mass and elucidate how it formed.
https://www.eso.org/public/news/eso2408/
#astrodon #astronomy #astrophysics #space
Most massive stellar black hole in our galaxy found
Astronomers have identified the most massive stellar black hole yet discovered in the Milky Way galaxy.www.eso.org
🚨 A STAR HAS DIED! ⭐💥
And I just happened to catch it from my city light-polluted backyard, using a 5cm aperture SeestarS50!
Check it out ... on the left is my image (only 25 mins of data). The cross hairs indicate a 'new star' appearing in galaxy NGC 3621. The right image is from Stellarium and I have annotated where the new star appears, and how it was not there before.
This is a type II supernova, so a massive star's core collapsed and triggered off an extremely violent explosion that we are seeing 22 million years later.
It likely formed a neutron star or pulsar!
It is incredibly bright and I encourage everyone to turn their telescopes towards it and get data / light curves!
#astrophotography #Astrodon #NGC3621 #Supernova #AT2024ggi
My favorite image from #eclipse2024?
This visualization of the Saros 139 cycle to which the eclipse belongs showing similar eclipses from 1501 to 2763. #Astrodon https://en.wikipedia.org/wiki/Solar_Saros_139
Phobos over Mars
Full size 3570x2000: https://flic.kr/p/2pHBL86
I was kinda tired of seeing this epic photo online only in black and white, so I decided to jazz it up with some colours!
ESA Mars Express HRSC
Orbit 7982
Time: 2010-03-26
Filter ND - H7982_0000_ND3.IMG
Image created using data processed from: https://psa.esa.int
Link to my Phobos album here: https://flic.kr/s/aHBqjAvrQL
Credit: ESA/ @DLR /FUBerlin/AndreaLuck CC BY
#Space #Astronomy #Astrodon #Spacetodon #Phobos #Mars #ESA
