Eclipse Total Solar Desde Santa Fe, Argentina

Gemínida desde China

Crédito: Steed Yu

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.

¿Naciste después del 1 de noviembre del 2000?👶 ¡Eres de "Generation Station"! y has vivido toda tu vida con el @Space_Station orbitando por encima.

Ven y conoce a estos estudiantes que están contribuyendo a @ISS_Research en el laboratorio en órbita:

https://go.nasa.gov/31kE5Kl

Sunkissed

📸 Daniel Borja

Ig: https://instagram.com/danborjaa

🗓️Junio 16, 2021

~Félicette

Spotted: signs of a planet about 28 million light-years away 🔎 🪐

For the first time, astronomers may have detected an exoplanet candidate outside of the Milky Way galaxy. Exoplanets are defined as planets outside of our Solar System. All other known exoplanets and exoplanet candidates have been found in the Milky Way, almost all of them less than about 3,000 light-years from Earth.

This new result is based on transits, events in which the passage of a planet in front of a star blocks some of the star's light and produces a characteristic dip. Researchers used our Chandra X-ray Observatory to search for dips in the brightness of X-rays received from X-ray bright binaries in the spiral galaxy Messier 51, also called the Whirlpool Galaxy (pictured here). These luminous systems typically contain a neutron star or black hole pulling in gas from a closely orbiting companion star. They estimate the exoplanet candidate would be roughly the size of Saturn, and orbit the neutron star or black hole at about twice the distance of Saturn from the Sun.

This composite image of the Whirlpool Galaxy was made with X-ray data from Chandra and optical light from our Hubble Space Telescope.

Credit: X-ray: NASA/CXC/SAO/R. DiStefano, et al.; Optical: NASA/ESA/STScI/Grendler

Make sure to follow us on Tumblr for your regular dose of space!

Vía Láctea en Embalse de Barrios de Luna situado en la comarca leonesa de Luna en España.

📅 19 de Julio del 2020.

Crédito: Marcos Alonso

https://instagram.com/elpiratilla

~Antares

Esta es la primera imagen del Rover Perseverance de la NASA en la superficie de Marte desde la cámara del Experimento de Imágenes de Alta Resolución (HiRISE) a bordo del Mars Reconnaissance Orbiter (MRO) de la NASA muestra las muchas partes del sistema de aterrizaje de la misión Marte 2020 que puso al rover a salvo en tierra. La imagen fue tomada el 19 de febrero de 2021.

Y más fotos de la lluvia de meteoros Perseidas. ¿Alguien más logro capturar alguna? Compartan sus fotos en esta publicación. La aparente estrella que se ve en la foto es Júpiter.

Crédito: Tero Marin

https://www.teromarin.com

~Antares

Blue Origin completó con éxito la decimotercera misión New Shepard el 13 de octubre de 2020. New Shepard voló 12 cargas útiles comerciales al espacio en esta misión, incluida la Demostración del sensor de aterrizaje, descenso y deorbitación con la Dirección de Misión de Tecnología Espacial de la NASA.

Vía: Blue Origin

La mayoría de los cúmulos de estrellas son singularmente impresionantes. Pero los cúmulos abiertos NGC 869 y NGC 884 podrían considerarse doblemente impresionantes. Puede ser visto desde un lugar oscuro sin siquiera binoculares.

Crédito: Greg Polanski.