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Una imagen compuesta de la subida de la Luna llena el 29 de diciembre de 2020 en una tarde muy clara del cielo crepúsculo, aquí sobre las Badlands del Parque Provincial Dinosaur, Alberta. Esta es una mezcla en capas de 13 exposiciones tomadas a intervalos de 5 minutos, desde la salida de la luna justo antes de la puesta del sol, hasta la altura de la luna en un cielo oscuro más de una hora después. El suelo y el cielo cerca del horizonte es una mezcla de las primeras cuatro exposiciones, mientras que el cielo superior es de las dos últimas exposiciones para colocar la luna ahora brillante en un cielo más oscuro como realmente apareció. La Luna mueve su propio diámetro en unos 2 minutos, por lo que las tomas tomadas con 5 minutos de diferencia proporcionan un buen espacio para un disparo con este campo de vista. Estos marcos fueron tomados como parte de un lapso de tiempo de 800 marcos con la cámara en la exposición automática para asegurar que cada marco estuviera bien expuesto para el suelo y el cielo. Pero a medida que la luna ilumina mientras se levanta, inevitablemente sobreexpone el disco de la Luna - la secuencia de exposición que utilizo aquí funciona para el time-lapse pero no es tan ideal para una imagen compuesta como esta. Si hubiera querido que se tomara esto solo para un compuesto de imágenes quietas, habría tenido que arreglar la exposición a más o menos lo que era a mitad de secuencia aquí, para mantener el disco lunar en ese brillo y detalle. ¡Que así sea! Todos estaban con la lente de Rokinon 85 mm y Canon 6 D Mklll a ISO 100.
Crédito: Alan Dyer
https://www.amazingsky.com/
Vía láctea sobre el Monte Ruapehu, uno de los volcanes más activos de Nueva Zelanda en la salida de la luna.
Crédito: Galactic Kiwi
https://instagram.com/galactic_kiwi
https://www.galactickiwi.nz/
~Antares
Increíble fotografía de la conjuncion de Jupiter y Saturno que nos acaban de compartir. Este tipo de fenómeno ocurre entre 4 y 5 veces en 100 años, pero es inusual ver los planetas tan cercas como en esta ocasión. La última vez que se vieron así de cerca fue hace más de 400 años.
Crédito: @ThierryLegault
https://www.facebook.com/thierry.legault.5
A Total Solar Eclipse Over South America
On Dec. 14, 2020, a total solar eclipse will pass over Chile and Argentina.
Solar eclipses happen when the Moon lines up just right between the Sun and Earth, allowing it to cast its shadow on Earth’s surface. People within the outer part of the Moon’s shadow will see the Sun partially blocked by the Moon, and those in the inner part of the shadow will see a total solar eclipse.
The Moon’s orbit around Earth is slightly tilted, meaning this alignment doesn’t happen on every orbit. Total solar eclipses happen somewhere on Earth about once every 18 months.
During a total solar eclipse, the Moon blocks out the Sun’s bright face, revealing its comparatively faint outer atmosphere, the corona. This provides Sun-watchers and scientists alike with a rare chance to see the solar corona closer to the Sun’s surface than is usually possible.
Scientists can take advantage of this unparalleled view — and solar eclipses’ unique effects on Earth’s atmosphere — to perform unique scientific studies on the Sun and its effects on Earth. Several NASA-funded science teams performed such studies during the total solar eclipse in the United States on Aug. 21, 2017. Read about what they’ve learned so far.
Watching the eclipse
We’ll be carrying images of December’s eclipse — courtesy of Pontificia Universidad Católica de Chile — on NASA TV and on the agency’s website starting at 9:40 a.m. EST on Dec. 14.
We’ll also have a live show in Spanish from 10:30 – 11:30 a.m. EST featuring views of the eclipse and NASA scientists.
If you’re observing the eclipse in person, remember that it’s never safe to look directly at the uneclipsed or partially eclipsed Sun. You can use special solar viewing glasses (NOT sunglasses) or an indirect method like pinhole projection to watch the eclipse in person.
For people in the path of totality, there will be a few brief moments when it is safe to look directly at the eclipse. Only once the Moon has completely covered the Sun and there is no sunlight shining is it safe to look at the eclipse. Make sure you put your eclipse glasses back on or return to indirect viewing before the first flash of sunlight appears around the Moon’s edge.
Mira el eclipse en vivo comentado por científicas de la NASA de 10:30 a 11:30 a.m. EST el 14 de diciembre en NASA TV y la página web de la agencia. Lee más sobre el eclipse y cómo observarlo de forma segura aquí: https://ciencia.nasa.gov/eclipse-de-2020-en-america-del-sur Y sigue a NASA en español en Instagram, Twitter, YouTube y Facebook.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.
What Would These Astronauts Put in Their #NASAMoonKit?
NASA is hard at work to land the first woman and the next man on the Moon, and we want to know: what would you pack for a trip to the Moon?
We will be soon conducting our last in a series of Green Run tests for the core stage of our Space Launch System (SLS) — the most powerful rocket ever built.
The series of tests is designed to gradually bring the rocket stage and all its systems to life for the first time — ensuring that it’s ready for missions to the Moon through the Artemis program.
To mark this critical time in the history of American spaceflight, we’ve been asking people like you — what would you take with you on a trip to the Moon? Social media users have been regaling us with their images, videos, and illustrations with the hashtag #NASAMoonKit!
Looking for a little inspiration? We asked some of our astronauts and NASA leaders the same question:
1. NASA Astronaut Chris Cassidy
NASA astronaut Chris Cassidy recently took this photo from the International Space Station and posted it to his Twitter account with this caption:
“If I was on the next mission to the Moon, I would have to bring this tiny spaceman with me! He’s flown with me on all of my missions and was in my uniform pocket for all the SEAL missions I have been a part of. Kind of like a good luck charm.”
2. European Space Agency Astronaut Tim Peake
European Space Agency astronaut Tim Peake asked his two sons what they would take with them to the Moon. This is what they decided on!
3. NASA Astronaut Scott Tingle
Based on previous missions to space, NASA astronaut Scott Tingle would put a can of LiOH, or Lithium Hydroxide, into his #NASAMoonKit.
A LiOH can pulls carbon dioxide out of the air — very important when you’re in a closed environment for a long time! Apollo 13 enthusiasts will remember that the astronauts had to turn off their environmental system to preserve power. To keep the air safe, they used LiOH cans from another part of the vehicle, but the cans were round and the fitting was square. Today we have interoperability standards for space systems, so no more square pegs in round holes!
4. NASA Astronaut Drew Morgan
NASA astronaut Drew Morgan received some feedback from his youngest daughter when she was in kindergarten about she would put into her #NASAMoonKit.
5. Head of Human Spaceflight Kathy Lueders
Although Kathy Lueders is not an astronaut, she is the head of human spaceflight at NASA! Her #NASAMoonKit includes activities to keep her entertained as well as her favorite pillow.
How to Show Us What’s In Your #NASAMoonKit:
There are four social media platforms that you can use to submit your work:
Instagram: Use the Instagram app to upload your photo or video, and in the description include #NASAMoonKit
Twitter: Share your image on Twitter and include #NASAMoonKit in the tweet
Facebook: Share your image on Facebook and include #NASAMoonKit in the post
Tumblr: Share your image in Tumblr and include #NASAMoonKit in the tags
If your #NASAMoonKit catches our eye, we may share your post on our NASA social media accounts or share it on the Green Run broadcast!
Click here for #NASAMoonKit Terms and Conditions.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
Vía Láctea sobre Estación Wadley, San Luis Potosí. En la imagen podemos ver una casa de adobe.
Crédito: Pavel Vorobiev
https://instagram.com/_vorobservatorio_
~Antares
NASA’s Search for Life: Astrobiology in the Solar System and Beyond
Are we alone in the universe? So far, the only life we know of is right here on Earth. But here at NASA, we’re looking.
We’re exploring the solar system and beyond to help us answer fundamental questions about life beyond our home planet. From studying the habitability of Mars, probing promising “oceans worlds,” such as Titan and Europa, to identifying Earth-size planets around distant stars, our science missions are working together with a goal to find unmistakable signs of life beyond Earth (a field of science called astrobiology).
Dive into the past, present, and future of our search for life in the universe.
Mission Name: The Viking Project
Launch: Viking 1 on August 20, 1975 & Viking 2 on September 9, 1975
Status: Past
Role in the search for life: The Viking Project was our first attempt to search for life on another planet. The mission’s biology experiments revealed unexpected chemical activity in the Martian soil, but provided no clear evidence for the presence of living microorganisms near the landing sites.
Mission Name: Galileo
Launch: October 18, 1989
Status: Past
Role in the search for life: Galileo orbited Jupiter for almost eight years, and made close passes by all its major moons. The spacecraft returned data that continues to shape astrobiology science –– particularly the discovery that Jupiter’s icy moon Europa has evidence of a subsurface ocean with more water than the total amount of liquid water found on Earth.
Mission Name: Kepler and K2
Launch: March 7, 2009
Status: Past
Role in the search for life: Our first planet-hunting mission, the Kepler Space Telescope, paved the way for our search for life in the solar system and beyond. Kepler left a legacy of more than 2,600 exoplanet discoveries, many of which could be promising places for life.
Mission Name: Perseverance Mars Rover
Launch: July 30, 2020
Status: Present
Role in the search for life: Our newest robot astrobiologist is kicking off a new era of exploration on the Red Planet. The rover will search for signs of ancient microbial life, advancing the agency’s quest to explore the past habitability of Mars.
Mission Name: James Webb Space Telescope
Launch: 2021
Status: Future
Role in the search for life: Webb will be the premier space-based observatory of the next decade. Webb observations will be used to study every phase in the history of the universe, including planets and moons in our solar system, and the formation of distant solar systems potentially capable of supporting life on Earth-like exoplanets.
Mission Name: Europa Clipper
Launch: Targeting 2024
Status: Future
Role in the search for life: Europa Clipper will investigate whether Jupiter’s icy moon Europa, with its subsurface ocean, has the capability to support life. Understanding Europa’s habitability will help scientists better understand how life developed on Earth and the potential for finding life beyond our planet.
Mission Name: Dragonfly
Launch: 2027
Status: Future
Role in the search for life: Dragonfly will deliver a rotorcraft to visit Saturn’s largest and richly organic moon, Titan. This revolutionary mission will explore diverse locations to look for prebiotic chemical processes common on both Titan and Earth.
For more on NASA’s search for life, follow NASA Astrobiology on Twitter, on Facebook, or on the web.
Make sure to follow us on Tumblr for your regular dose of space!
Vía Láctea sobre Sierra Nevada, California en Estados Unidos
Crédito: Michael Castaneda
Instagram.com/_mcastaneda_
www.michaelcastaneda.com
"The Red Gazer"
Vía Láctea desde el desierto de Sonora.
Crédito: Evan Amos
https://instagram.com/evanamos
https://www.evanamos.com/
~Antares
Glaretum fundado en el 2015 con el objetivo de divulgar la ciencia a través de la Astronomía hasta convertirnos en una fuente de conocimiento científico veraz siendo garantía de información seria y actualizada.
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