David Ondřich
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dond.cz
David Ondřich
@dond.cz
31 followers 46 following 21 posts
Nepozorující astronom, nehrající muzikant, neprogramující programátor, neučící lektor. Ředitel Komunikace21, zástupce šéfredaktora Astropisu, spoluzakladatel SciComHubu, IT konzultant a fotograf na volné noze.
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dond.cz
Už to nový pláště opravdu chtělo…
#koloběžka #brnda #kolobka
Pláště na koloběžku: vlevo nový, vpravo sjetý
April 8, 2025 at 4:51 PM
dond.cz
Ethel Cain, Perverts: Tichá, klidná, hluboce temná muzika. Kupodivu to není soundtrack k filmu, ale moh by. Hodně uvěřitelná bolest. Nedávejte se k sektám, lidi.
★★★★★
#music #listen #cinematic
April 3, 2025 at 10:16 AM
Reposted by David Ondřich
coreyspowell.bsky.social
Spectacular: The partially eclipsed Sun rising over the St Lawrence River in Quebec, captured on March 29. Video by Jason Kurth.

(I sped up the footage 4x for the impatient...like myself.) 🧪🔭

apod.nasa.gov/apod/astropi...
April 2, 2025 at 4:25 AM
dond.cz
Nevim, dál.
Sluchátka s vylomeným konektorem.
March 30, 2025 at 5:21 PM
Reposted by David Ondřich
esa.int
🌍 The first image from the IRIDE Earth observation satellite was published today: a hi-res image showing the city of Rome at a resolution of 2.66 m (three times higher than the resolution currently available for systematic acquisition over Italy).

www.esa.int/Applications...
This image shows the centre of the city of Rome: on the right, the Tiber river flows from north to south, and near the course of the Tiber, we see the white oval of the Olympic stadium at the top-right of the image, then the streets of the Vittoria neighbourhood radiating from piazza Mazzini and, further down along the bend of the river, the famous dome and colonnades of Saint Peter’s basilica and the star-shaped gardens of Castel Sant’Angelo. The image was captured on 5 March 2025, during a passage over central Italy, by a multispectral optical instrument on the first IRIDE microsatellite.
March 28, 2025 at 12:17 PM
dond.cz
Steven Wilson, The Overview: pořád si na tu popovou verzi nemůžu úplně zvyknout. Vše jako vždy: polyrytmy, bezešvý přechody, stovky nápadů, skvělý bicí a basa, absolutně čistej zvuk. ★★★★☆
#music #listen #progrock
March 28, 2025 at 9:26 AM
Reposted by David Ondřich
esa.int
The moment has come to say goodbye to Gaia! 🥹
operations.esa.int ESA Operations @operations.esa.int · Mar 27
Today we say goodbye to ESA’s Milky Way-mapper Gaia! The Gaia spacecraft has completed its sky-scanning and will be switched off this morning.
Gaia spacecraft in space in front of the Milky Way galaxy
March 27, 2025 at 8:25 AM
Reposted by David Ondřich
esa.int
Congratulations @stevenwilsonhq.bsky.social on achieving these cosmic chart positions for the launch of your own 'Overview' effect 😉
stevenwilsonhq.bsky.social Steven Wilson @stevenwilsonhq.bsky.social · Mar 21
Isn’t that a beautiful thing
March 27, 2025 at 1:39 PM
Reposted by David Ondřich
rami.spaceaustralia.com
Updated explainer diagram version!

Still can't get over the structures we see in this lens. Physics allows us to see around corners!

Someone said to me last night that this looks like a half-cut avocado, and now I cannot unsee it! 🥑

📸 ESA/Webb, NASA & CSA, G. Mahler & Planetary Society

🔭🧪
Three tile image with two images in top row. Top row: In the centre is an elliptical galaxy, seen as an oval-shaped glow around a small bright core. Around this is wrapped a broad band of light, appearing like a spiral galaxy stretched and warped into a ring, with bright blue lines drawn through it where the spiral arms have been stretched into circles. A few distant objects are visible around the ring on a black background. The image has been annotated to point out the foreground galaxy as well as the background spiral. In the bottom row: Diagram showing the JWST on one side with light being focused into it from a distant galaxy, via an intermediate galaxy. The Galaxy appears as a ring as light scattered in all directions is delivered to the focal point.
March 27, 2025 at 9:10 PM
Reposted by David Ondřich
eso.org
2/2 This perfectly timed photo captured the full Moon looming large and framing our ELT!

More details: www.eso.org/public/image...

🔭 🧪

📹 and 📷 J. Beltrán/ESO
March 24, 2025 at 8:00 AM
dond.cz
Možná jste si nevšimli, že Dream Theater vydali novou desku, Parasomnia. Já taky ne. Klidně si nevšímejte dál, je to nuda. (Pár momentů stojí za slyšení, ale skutečně asi právě dva.) #music #listen #boring
March 24, 2025 at 8:38 AM
Reposted by David Ondřich
pomarede.bsky.social
Shocking Spherules!

Last week the Perseverance Science Team were astonished by a strange rock comprised of hundreds of millimeter-sized spheres… and the team are now working hard to understand their origin.

science.nasa.gov/blog/shockin... #Mars 🧪🔭
This image from NASA’s Mars Perseverance rover, a fusion-processed SuperCam Remote Micro Imager (RMI) mosaic, shows part of the “St. Pauls Bay” target, acquired from the lower Witch Hazel Hill area of the Jezero crater rim. The image reveals hundreds of strange, spherical-shaped objects comprising the rock. Perseverance acquired this image on March 11, 2025, or sol 1442 — Martian day 1,442 of the Mars 2020 mission. NASA/JPL-Caltech/LANL/CNES/IRAP.
March 22, 2025 at 9:06 PM
Reposted by David Ondřich
coreyspowell.bsky.social
Whoa: The European Space Agency's Solar Orbiter spacecraft got a spectacular view of Comet ATLAS (C/2024 G3) as it passed close to the Sun. Look at that enormous, splintered tail!

This comet won't be seen again for another 600,000 years. 🧪🔭

www.esa.int/Science_Expl...
March 22, 2025 at 3:26 AM
Reposted by David Ondřich
eso.org
To clarify: this is only possible thanks to adaptive optics, which corrects atmospheric turbulence and allows us to read those tiny labels 🔭.

xkcd.com/3066/
A cartoon with a stick figure pointing at a whiteboard with an image of the night sky. A small patch on that image is amplified several times until one can read the name of a star and its distance. A text at the bottom reads: “Cosmology news: new telescopes are finally powerful enough to read the little labels next to stars showing how far away they are.”
March 21, 2025 at 5:06 PM
dond.cz
Tak pěkné jaro! 🌱🌸🤧

#jaro #spring
March 20, 2025 at 9:01 AM
Reposted by David Ondřich
science.esa.int
The NASA/ESA/CSA #Webb Space Telescope has captured direct images of gas giant #exoplanets in a system 130 light-years away, and found evidence that they formed like Jupiter and Saturn 🪐

Read more 👉 esawebb.org/news/weic2504/

🔭🧪 #astrosci
This image shows the planetary system HR 8799. The image background is black. At the centre of the image, there is a symbol representing a star labeled HR 8799. This star blocks the light from the host star. There are four exoplanets, which look like fuzzy dots, pictured in the image surrounding the star. Furthest from the star is a fuzzy, faint blue dot, labeled b, at the 10 o’clock position. At the one o’clock position, second furthest from the star is a blueish-white fuzzy dot labeled c. Just below that is an orange dot labeled e. At the four o’clock position, still nearby the star, is another fuzzy white dot labeled d.
March 17, 2025 at 2:44 PM
dond.cz
Proč současná americká administrativa útočí na vědu? 👇

Nic, co byste nejspíš nevěděli, ale hodí se mít po ruce souhrn argumentů pro debatu, proč vědu a vzdělání potřebujeme podporovat.

www.youtube.com/watch?v=46Xa...
www.youtube.com
March 15, 2025 at 8:53 AM
Reposted by David Ondřich
eso.org
Where are we with the construction of our Extremely Large Telescope?

This video takes you on a drone flight over the #ELT site. Go full screen & volume up!
www.youtube.com/watch?v=t3GJ...

We've also updated the ELT schedule, see below. 1/2

📹 CIMOLAI/S. Petkovic 🎶 Jon Kennedy–Toy Soldiers
🔭
Drone view of ESO's Extremely Large Telescope
In this drone video, recorded in March 2025, we fly over our Extremely Large Telescope, currently under construction in Chile’s Atacama Desert. With its 39 m...
www.youtube.com
March 14, 2025 at 1:01 PM
Reposted by David Ondřich
scicomhub.bsky.social
🔊OPEN CALL pro řečníky!

Koncem dubna vyrážíme do Olomouce, kde v rámci festivalu #AFO (Academia Film Olomouc) pořádáme další NEkonferenci.

Chcete sdílet své zkušenosti s komunikací vědy? Staňte se řečníkem a do 23. 3. zaregistrujte svůj příspěvek ➡️ bit.ly/AFO-NEkonfer...
March 5, 2025 at 10:07 AM
Reposted by David Ondřich
coreyspowell.bsky.social
The first private mission to Venus is taking shape with some help from engineers at NASA-Ames.

Rocket Lab's Venus mission, currently set for launch in Summer 2026, will search for evidence of life or habitable conditions in the clouds of Venus. 🧪🔭

www.nasa.gov/image-articl...
Engineers at NASA’s Ames Research Center in California’s Silicon Valley, Bohdan Wesely, right, and Eli Hiss, left, complete a fit check of the two halves of a space capsule that will study the clouds of Venus for signs of life.
March 3, 2025 at 7:15 PM
Reposted by David Ondřich
lukaslaibl.bsky.social
My book for kids is finally out 🥳

"A Real Paleontologist's Handbook" 📙

👉 www.bylonebylo.com/prirucka-sku...
March 3, 2025 at 6:54 PM
Reposted by David Ondřich
operations.esa.int
Asteroid 2024 YR4 no longer poses a significant impact risk. ESA's latest analysis has reduced the probability of an Earth impact in 2032 to 0.001%. Planetary Defenders continue to keep watch for any other asteroids that may come too close for comfort 🛡️🔭

www.esa.int/Space_Safety...
Asteroid 2024 YR4 no longer poses significant impact risk
The latest analysis from the European Space Agency (ESA) Planetary Defence Office has reduced the probability that asteroid 2024 YR4 might impact Earth in 2032 to 0.001%.
www.esa.int
February 25, 2025 at 9:15 AM
dond.cz
Videa ze Dne s Astropisem 7. 12. 2024 jsou venku: m.youtube.com/@astropiscz #astropis
Astropis
Astropis časopis pro příznivce astronomie
m.youtube.com
January 19, 2025 at 9:21 PM
dond.cz
#astropis 143 (2024)
Obálka Astropisu č. 143 (2024)
January 15, 2025 at 9:50 PM
dond.cz
A Martin je tu taky, takže ho rovnou můžete začít sledovat a mít info z první ruky: @cassi-astronomy.bsky.social 🦋
dond.cz David Ondřich @dond.cz · Dec 30
💫 Martin Mašek objevil novou českou kometu. 💙 Za posledních 50 let teprve šestou. A za poslední ¼století teprve druhou.

www.astro.cz/novinky/nova...

#astrosky #astropis
Nová česká kometa?
Objevový snímek tělesa s provizorním označením MAS0019 na stránce PCPP (Possible Comet Confirmation
www.astro.cz
January 15, 2025 at 3:40 PM