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This NASA/ESA Hubble Space Telescope observation has captured the galaxy CGCG 396-2, an unusual multi-armed galaxy merger which lies around 520 million light-years from Earth in the constellation Orion.
This observation is a gem from the Galaxy Zoo project, a citizen science project involving hundreds of thousands of volunteers from around the world who classified galaxies to help scientists solve a problem of astronomical proportions: how to sort through the vast amounts of data generated by telescopes. A public vote selected the most astronomically intriguing objects for follow-up observations with Hubble. CGCG 396-2 is one such object, imaged here by Hubble’s Advanced Camera for Surveys.
Image credit: ESA/Hubble & NASA, W. Keel
#NASA #MarshallSpaceFlightCenter #MSFC #Marshall #HubbleSpaceTelescope #HST #astrophysics #gsfc #galaxy
"...Mi padrino encontró dos amigos ¿cómo había de ser? Ellos también tenían oficio de reseros y, como es natural, nos pegamos unos a otros, con esa súbita familiaridad de los ariscos, cuando se encuentran medio apampados por el ruido y la gente. Eran hombres de unos treinta años, curtidos y risueños; nos preguntaron qué sabíamos de las carreras..."
Fragmento de “Don Segundo Sombra”, de Ricardo Güiraldes
San Antonio de Areco, Provincia de Buenos Aires, Argentina
Amigos, visitem: www.visiteareco.com
Macro 1X con apilamiento de foco por control de anillo de enfoque
Macro 1X by focus stacking using the focus ring control
Ingredientes:
-Nikon D600 + Nikor 105mm macro 1X
-Helicon Remote para control automático de la pila de foco mediante el anillo de enfoque (por medio de USB)
-Helicon Soft para apilamiento de foco (36 shots, Method B, R=4, S=2)
-Helicon lo puedes bajar a prueba durante 1 mes gratis, o una licencia para un año por 50€, controla casi todas las Nikon y Canon mediante USB. Existen otros proveedores de soft para stacking (apilamiento), p. ej. Zerene, ControlMyNikon o Canon, Combine Z, etc
-Opcional: impresora 3D (Up Plus 2) para la fabricación de focos, soportes, mesa de trabajo, etc. Puedes utilizar el sencillo 123D Design (free soft) para diseñar las piezas.
Receta:
-Montamos el bodegón con sujeto y fondo
-Lo iluminamos con 4 o 5 micro-focos de leds. Los focos se pueden diseñar e imprimir utilizando una impresora 3D y después montar los leds (alta luminosidad y 5300K), la alimentación es de 12vdc para grupos de 3 o 4 leds. La ventaja frente al uso de flash, es que se pueden dirigir los focos y componer la iluminación antes del disparo, además del volumen que se consigue jugando con la iluminación.
-Disparamos las fotografías utilizando, p. ej., Helicon Remote: Helicon controla el enfoque con el movimiento del anillo de enfoque antes de disparar cada foto, todo el proceso de toma de fotos es automático, se pueden ver videos en youtube
-Para 1X se necesitan de 20 a 100 fotos, según valor de f, focal utilizada y profundidad de campo necesaria, lo calcula el soft automáticamente. Se suele utilizar el punto dulce de la lente (normalmente en el entorno de f5.6) para optimizar los resultados
-Apilamos el stack de n fotografías utilizando Helicon Soft
-Utilizamos Lightroom o similar para eliminar “halos” y “artefactos”
-Una vez se tiene práctica, todo el proceso puede durar 15 min
pepo
/ POOR ENGLISH
Macro 1X by focus stacking using the focus ring control
How do you can do it :
Ingredients:
-Nikon D600 + 105mm macro nikor 1X
-Helicon Remote control for automatic focus stack using the camera focus ring (using USB)
-Helicon Soft Focus Stacking (36 shots, Method B, R = 4, S = 2)
-Helicon: You can download a free trial for 1 month, or a license for a year for € 50, it controls almost many Nikon and Canon via USB. There are other suppliers of soft for stacking, p. ex. Zerene, ControlMyNikon or Canon, Combine Z, etc.
-optional: 3D (Up Plus 2) printer to manufacture light bulbs, brackets, desk, etc. You can use the friendly 123D Design (free soft) for pieces designing.
Recipe:
-Ilumination with 4 or 5 micro-LED bulbs. The lighters can be designed and printed using a 3D printer and then mount the LED´s (high brightness and 5300K), the power is 12VDC for groups of 3 or 4 LEDs. The advantage over use of flash, is that you can positioning the lights and lighting make up before shooting, in addition to the volume to be achieved by playing with these lighting.
-Shot photographs using, p. eg Helicon Remote. Helicon controls the approach to the movement of the focus ring before the photo shot, the whole process of taking pictures is automatic, you can watch videos on youtube
-For 1X do you needed 20-100 photos, depending on value of f, focal and deep of field needed, automatically calculated by the soft. Often used the sweet spot of the lens (usually in the vicinity of f5.6) to optimize results
-Now we stack of shots using Helicon Soft
-We can use Lightroom or the like to remove "halos" and "artifacts"
-Once you have practice, the whole process can take 15 min
-And sorry my English, please.
pepo
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Ojalá hubiese grabao toas las fotos y tos los videos que habías enviado
Y esta noche mi mente te hubiese visitado
Ya que no te consigo por tenerme bloqueado
¿Dónde estarás que ya no respondes?
¿En qué cama nueva te escondes?
¿Y cómo se llama esa cabrona que ahora gritas su nombre?
Dime por qué no llamas,
Si yo sé que piensas en mi cuando estás con ella en la cama
Fumo pa no pensarte y me sale tu holograma
No olvido cómo mama y cómo te daba en toas las poses
El se hizo completo porque tenía el corazón roto
Borré los videos del carrete, pero en mi mente quedó tu foto
Solo dime dónde es que estás, que esto me está volviendo loca
Por esa puerta huyó, diciendo: «¡Nunca!»
Por esa puerta ha de volver un día...
Al cerrar esa puerta, dejó trunca
la hebra de oro de la esperanza mía.
Por esa puerta ha de volver un día........
de Amado Nervo
This NASA/ESA Hubble Space Telescope observation has captured the galaxy CGCG 396-2, an unusual multi-armed galaxy merger which lies around 520 million light-years from Earth in the constellation Orion.
This observation is a gem from the Galaxy Zoo project, a citizen science project in which hundreds of thousands of volunteers classified galaxies to help scientists solve a problem of astronomical proportions — how to sort through the vast amounts of data generated by robotic telescopes. Following a public vote, a selection of the most astronomically intriguing objects from the Galaxy Zoo were selected for follow-up observations with Hubble. CGCG 396-2 is one such object, and was captured in this image by Hubble’s Advanced Camera for Surveys.
The Galaxy Zoo project originated when an astronomer was set an impossibly mind-numbing task; classifying more than 900 000 galaxies by eye. By making a web interface and inviting citizen scientists to contribute to the challenge, the Galaxy Zoo team was able to crowdsource the analysis, and within six months a legion of 100 000 volunteer citizen astronomers had contributed more than 40 million galaxy classifications.
Since its initial success, the Galaxy Zoo project and its successor projects have contributed to more than 100 peer-reviewed scientific articles and led to a rich variety of intriguing astronomical discoveries above and beyond their initial goals. The success of the project also inspired more than 100 citizen science projects on the Zooniverse portal, ranging from analysing data from the ESA Rosetta spacecraft's visit to Comet 67P/Churyumov–Gerasimenko to counting killer whales around remote Alaskan islands!
Credits: ESA/Hubble & NASA, W. Keel; CC BY 4.0
Esa curiosa impresión tuve al mirar el arco iris y esa curiosa nube a su lado. Gracias por vuestro tiempo. Saludos.
The Copernicus Sentinel-2 mission takes us over the Pyrenees Mountains in southwest Europe. The mountain range forms a natural border between France and Spain with the small, landlocked country of Andorra sandwiched in between.
Stretching from the shores of the Mediterranean Sea on the east to the Bay of Biscay (Atlantic Ocean) on the west, this international mountain range is 430 km long. The area pictured in this image, captured on 30 January 2022, spans around 120 km from the village of Escallare in the east to Panticosa to the west.
Located in the Spanish province of Huesca in the Posets-Maladeta Natural Park lies Pico de Aneto, the highest mountain peak in the Pyrenees. It rises to an elevation of 3404 m and is also the third-highest mountain in Spain. Click on the circle in the image to take a closer look at Pico de Aneto.
Geological studies have revealed that the Pyrenees Mountains have been around for longer than the Alps, with their sediments first deposited in coastal basins during the Paleozoic and Mesozoic eras. The entire mountain range formed due to the upwelling of large sedimentary rocks by the collision of the Iberian and the Eurasian plate around 100 to 150 million years ago, followed by intense erosion from ice and water.
Snow covers many of the peaks year-round, especially those in the centre-section of the chain. The western Pyrenees typically receive greater precipitation than the eastern Pyrenees owing to moisture blowing in from the Atlantic Ocean. The mountain range is also home to several small glaciers, as well as many mountain lakes and some of the highest waterfalls in Europe including Gavarnie Falls which, at 422 m, is France’s highest waterfall.
Few people live at the Pyrenees’ highest elevations; however, Andorra is nestled among peaks near the eastern end of the chain (not visible in the image). With an area of around 468 sq km, Andorra is the sixth smallest country in Europe.
The Copernicus Sentinel-2 mission is designed to play a key role in mapping differences in land cover to understand the landscape, map how it is used and monitor changes over time. As well as providing detailed information about Earth’s vegetation, it can also systematically map different classes of cover such as forest, grassland, water surfaces and artificial cover like roads and buildings.
This image is also featured on the Earth from Space video programme.
Credits: contains modified Copernicus Sentinel data (2022), processed by ESA, CC BY-SA 3.0 IGO
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ESA astronaut Alexander Gerst took this image of Hurriacane Florence on 12 September 2018, 400 km high from the International Space Station. He commented:
"Watch out, America! Hurricane Florence is so enormous, we could only capture her with a super wide angle lens from the International Space Station, 400 km directly above the eye. Get prepared on the East Coast, this is a no-kidding nightmare coming for you."
Alexander is on his second six-month Space Station mission. Follow him and the Horizons mission on social media on his website and on his blog.
Credits: ESA/NASA–A. Gerst
No creo que esas cosas puedan hacerte daño, pero si ves algo que no te guste limítate a mirar hacia otro lado, y cuando vuelvas a fijarte, la cosa habrá desaparecido.
Expedition 53 Flight Engineer Paolo Nespoli of the European Space Agency (ESA) photographed cloudy skies over Sudan during an International Space Station flyover on Oct. 22, 2017. Nespoli shared the image with his followers on social media on Nov. 6, writing, "#EarthFromSpace means also... Lots of clouds! How do they look from below?"
Image credit: ESA/NASA
To follow NASA astronauts on twitter, click here.
A specially upgraded radio-frequency chamber in ESA’s technical heart is testing what is set to become the smallest radar system to be flown in space, hosted aboard a breadbox-sized spacecraft.
Scheduled to fly to the Didymos binary asteroid system with ESA’s Hera mission for planetary defence in 2024, the compact radar aboard the Juventas CubeSat will perform the first ever radar sounding inside an asteroid. Juventas will peer up to 100 m deep within the 160-m-diameter Dimorphos moonlet of the 780-m-diameter Didymos asteroid.
CubeSats are mini-satellites built up from standardised 10-cm boxes. Juventas is a ‘6-unit’ CubeSat, measuring 10x20x30 cm, while its quartet of radar antennas measure 1.5 m long each. So the test campaign includes a structural model of the Juventas CubeSat, to evaluate how the body of the miniature spacecraft might affect the radar signals.
The test campaign is taking place inside the ‘Hybrid European Radio Frequency and Antenna Test Zone’ or Hertz chamber at ESA’s European Space Research and Technology Centre (ESTEC) in the Netherlands. However testing here only became feasible after a skillful upgrade.
“An essential element of anechoic test chambers like Hertz are the radio-absorbing foam spikes lining the inside walls, allowing tests to mimic the infinite void of space,” explains ESA antenna engineer Paul Moseley.
“But typically Hertz can only test down to 400 MHz, while Hertz’s main antennas will radiate at 60 MHz. At this frequency the spikes no longer absorb signals, so instead of a dark room the chamber would be turned into a hall of mirrors, throwing out multiple radio reflections that interfere with the accuracy of our measurements.”
ESA’s Hertz team worked with MVG in Italy to devise a new setup making lower frequency testing possible, initially as part of a general upgrade but then specially targeted to enable Juventas testing.
Paul adds: “It’s a combination of hardware and software that allows us to measure in this environment but still reconstruct the correct results, including fibreglass support towers that are transparent to antennas and software that combines measurements made at many different points across the room, in order to cancel out the reflection effects.”
Franco Perez Lissi of ESA’s CubeSats Systems Unit is overseeing the Juventas testing: “We’re measuring the radiation pattern in a full sphere surrounding the antennas- the results of which should also be very useful for Juventas’s critical design review, taking place next month – as well as the total radiated power. This entire campaign additionally serves as a dress rehearsal of sorts for the flight model of Juventas, which is scheduled to be tested here in early 2023.”
The radar aboard Juventas is developed from the Rosetta spacecraft’s CONSERT radar system, which peered into the interior of Comet 67P/Churyumov–Gerasimenko. It is a synthetic aperture radar design, meaning it will take advantage of Juventas’s orbit 3 km above the surface of Dimorphos to integrate together multiple signal reflections and resolve them into images.
“We are proud to see Rosetta’s legacy living on in the next generation of deep-space missions,” adds Alain Herique of the University of Grenoble, Principal Investigator of Juventa’s JuRa low-frequency radar.
Juventas is being led for ESA by GomSpace company in Luxembourg with GMV in Romania, with its radar developed by the Planétologie et d'Astrophysique de Grenoble group at the University Grenoble and Technical University Dresden, with Astronika in Poland constructing the antennas and EmTroniX in Luxembourg contributing the signal generation system.
Hera will also be embarking a second deep space CubeSat, the Italian-led Milani, which will employ a multispectral imager to prospect the asteroid’s surface composition. Hera will be preceded to the Didymos asteroids by NASA’s DART spacecraft which will perform a test deflection of the smaller body. DART is due for launch next Wednesday, 24 November.
Credits: ESA-P. de Maagt
Captured by ESA astronaut André Kuipers, London by night.
André is onboard the ISS as part of ESA's long duration mission, PromISSe. For further information on the mission, please visit: www.esa.int/SPECIALS/PromISSe/index.html
Credits: ESA/NASA
Keeping a launcher in flight connected with the ground is one of the toughest jobs an antenna can have. Having to contend with high temperatures, vibration and atmospheric slipstream is hard enough, but shifting atmospheric pressure levels as the launcher heads into the vacuum of space (and potentially back again) can risk dangerous electrical discharges called corona – being tested for here.
The antenna design being tested at ESA’s High Power Radio Frequency Laboratory in Valencia, Spain, is one of a quartet that is about to see service on Spain’s Miura 1 sub-orbital micro-launcher, developed by the PLD Space company. But the four antennas are also undergoing a separate test campaign to qualify them for wider future uses.
“There are four different antenna types in all, each being flown in pairs aboard Miura 1,” explains ESA antenna engineer Victoria Iza.
“One is a Global Navigation Satellite Signal antenna, using satellite navigation signals to track the launcher’s position; one is an S-band antenna to transmit telemetry plus C-band and UHF antennas that both serve the security system that will end the flight safely in case of malfunction, operating on a redundant basis.
“Built by Spain’s Anteral company, this quartet of conformal dielectric antennas – each roughly the size of a smartphone and made to fit around the hull of the upper stage – has already been qualified as part of the avionics bay of the Miura 1. But with the number of European small launchers increasing rapidly, supported by ESA’s Boost! programme, the potential is there for these antennas to find wider uses, so they are being put through a separate qualification programme.”
Taking place through ESA’s General Support Technology Programme, helping develop promising new products for space and the open market, the antennas are currently undergoing environmental testing including thermal vacuum where they are exposed to sustained vacuum and temperature extremes – and vibration tests.
These antennas have to sustain harsh thermomechanical environments during launch, orbital flight and eventual return to Earth, so the project has been supported on the ESA side by structures engineer Goncalo Rodrigues and thermal engineer Miguel Copano.
Key stress factors are vibrations propagating from the launch vehicle jet engines, shocks resulting from the fairing and stages separation and the extreme temperatures resulting from aerothermal fluxes and – once in orbit – alternating Sun and cold space exposure.
To check the antennas designs can not only survive but go on operating as intended, the team employed a combination of computer simulations and on-ground test facilities including electro-magnetic shakers, pyro-shock tables and thermal-vacuum chambers.
“Most of the testing has been carried out at the Public University of Navarra, UPNA, but ESA’s High Power Radio Frequency Lab was used for corona discharge testing,” adds Victoria.
“When a radio frequency antenna is surrounded by a vestigial amount of atmosphere – as when a launcher is either leaving or returning to a planetary atmosphere – then there is the potential for this air to become ionised by the radio signal, risking damaging lightning-like discharge.
“The antennas were placed in this glass container so that their surrounding air levels can be changed while the antennas are in operation; the glass does not impede the radio signals. Our full test campaign will conclude soon, hopefully helping the antennas to find fresh markets, not only for launchers – for instance, their demonstrated robustness means they could also be used aboard planetary landers.”
"For Anteral, the development of these antennas is key to our positioning in the small launcher market,” explains Fernando Teberio, Chief Technology Officer of Anteral.
Anteral CEO Itziar Maestrojuan notes: “Thanks to the support from ESA we have been able to fully qualify the antennas that will be used on Miura-1 and hopefully on many other launchers and different applications where reliability is a key parameter.”
Credits: Anteral
Far away in the Ursa Major constellation is a swirling galaxy that would not look out of place on a coffee made by a starry-eyed barista. NGC 3895 is a barred spiral galaxy that was first spotted by William Herschel in 1790 and was later observed by the NASA/ESA Hubble Space Telescope.
Hubble's orbit high above the Earth's distorting atmosphere allows astronomers to make the very high resolution observations that are essential to opening new windows on planets, stars and galaxies — such as this beautiful view of NGC 3895. The telescope is positioned approximately 570 km above the ground, where it whirls around Earth at 28 000 kilometres per hour and takes 96 minutes to complete one orbit.
Credits: ESA/Hubble, NASA, and R. Barrows; CC BY 4.0
The Gweni-Fada #meteorite impact crater in Chad – 14 km in diameter - as seen by ESA astronaut Samantha Cristoforetti aboard the International Space Station for her Minerva Mission.
ID: iss067e089226
Credit: ESA/NASA-S.Cristoforetti
'Swage' was the word of the day on Monday as ESA astronaut Luca Parmitano carried out the third spacewalk to service the cosmic ray hunting Alpha Magnetic Spectrometer AMS-02. Luca swaged, or joined, the instrument’s tubes to a new pump system that will give it a new lease on life.
Riding on the International Space Station’s robotic arm, Luca soared to the cosmic ray detector’s worksite for nearly five hours of space plumbing.
Yesterday’s spacewalk was the most critical of four spacewalks planned to service the Alpha Magnetic Spectrometer that has provided scientists with invaluable data on cosmic particles long after its original three-year mission. In 2017 the decision was made to service the instrument after all four cooling systems wore out.
Luca and NASA astronaut Andrew Morgan began by passing the cooling system to each other as they inched their way from the airlock to the Space Station’s robotic arm. Luca then attached himself to the arm and – aided by astronaut Jessica Meir who operated this from inside the Station – transported the system to the hard-to-reach worksite.
Luca rode the arm into position, seen in this image, and together with Drew screwed the new pump onto AMS. The system was powered on and Luca was moved to a different location by robotic arm for the swage operations. Luca did six swages before taking the robotic arm ride again to the underside of AMS for the last two and finish the job.
The spacewalk was a success, with Luca and Drew finishing their delicate and unprecedented work ahead of schedule. They returned to the Space Station airlock ending the spacewalk at six hours and two minutes. A fourth and last spacewalk for AMS is planned at a later date.
Credits: NASA
PARA TI
Ni el mundo ni ella misma eran conscientes de lo bonita que estaba esa mañana, cuando me senté a tu lado
Desprendía más luz que la luna llena que la cuidaba desde lo más alto de sus miedos.
Pequeña pero de sueños grandes y corazón infinito
El pelo castaño recogido dejado entrever alguna que otra estrella en la cima de su espalda.
Una sonrisa escandalosamente adictiva y un tanto contagiosa, apta para quedarse a soñar en ella.
Sus ojos eran un mundo aparte, profundos como un océano en calma pero con ese toque de firmeza que eso lo tienen esos huracanes con nombre de mujer.
Espero volver a verte y saber de ti.
This stereoscopic image shows the Mawrth Vallis region of Mars. It was generated from data captured by the High Resolution Stereo Camera (HRSC) on ESA’s Mars Express orbiter on 18 February 2023 during orbit 24164. The anaglyph, derived from data acquired by the nadir channel and one stereo channel of the HRSC, offers a three-dimensional view when viewed using red-green or red-blue glasses.
Credits: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO
This new picture of the week, taken by the NASA/ESA Hubble Space Telescope, shows the dwarf galaxy NGC 4625, located about 30 million light-years away in the constellation of Canes Venatici (The Hunting Dogs). The image, acquired with the Advanced Camera for Surveys (ACS), reveals the single major spiral arm of the galaxy, which gives it an asymmetric appearance. But why is there only one such spiral arm, when spiral galaxies normally have at least two?
Image Credit: ESA/Hubble & NASA
A small forest of antennas sprouts from the roof of ESA’s Navigation Laboratory, based at the ESTEC technical centre in the Netherlands, which is among the most frequently satnav-fixed locations on Earth. This is also the site of the very first Galileo positioning fix, acquired back in 2014 using the first quartet of Galileo satellites.
“The antenna is a critical component of any Global Navigation Satellite System user segment, capturing power from the electromagnetic waves it receives, then converting it into electrical current to be processed by the rest of the receiver chain,” explains Radio Navigation Engineer Michelangelo Albertazzi.
“Up here we have a variety of antenna designs in place – such as omnidirectional, high gain and arrays – from leading world receiver manufacturers, which acquire signals from all major global GNSS constellations, including Galileo, GPS, the Russian Glonass and China’s Beidou, as well as regional systems such as Europe’s EGNOS.”
The NavLab is also equipped with state-of-the-art equipment to record, replay and analyze the RF signals picked up by these antennas, to help with its main goal of performing tests, analyses and characterisation of navigation systems for both ESA and external customers.
To find out more about working with ESA facilities, check our new website on the duties and resources of ESA’s Directorate of Technology, Engineering and Quality.
Credits: ESA-Remedia
Madrugué para que los primeros rayos del sol aparecieran por miespalda y con esa luz dorada del amanecer pusieran color, en este caso, a untrocito de la Ría de Vigo, con su inconfundible puente de Rande que forma yadesde hace décadas, del paisaje de las Rías Baixas.
ESA astronaut Matthias Maurer and NASA astronauts Raja Chari, Tom Marshburn and Kayla Barron liftoff to the International Space Station in the SpaceX Crew Dragon spacecraft “Endurance”.
Collectively known as “Crew-3”, the astronauts were launched from launchpad 39A at NASA’s Kennedy Space Center in Florida, USA. They will spend around six months living and working aboard the orbital outpost before returning to Earth.
It is the first space mission for Matthias, who will be the 600th human to fly to space. He chose the name “Cosmic Kiss” for his mission as a declaration of love for space.
Matthias has a background in materials science and looks forward to supporting a wide range of science and research in orbit. The work he carries out throughout his mission will contribute to the success of future space missions and help enhance life on Earth.
Visit the Cosmic Kiss mission page to learn more about Matthias’s mission.
Credits: ESA - S. Corvaja