¿Se Imaginan Poder Ver Ese Cielo Siempre? Esta Fotografía Fue Tomada Desde Kiruna, Suecia.

La galaxia de andromeda o también conocida como M31, una galaxia que en unos millones de años colisionaran con nuestra galaxia y ambas se fusionaran formando una nueva.

Te invitamos a que sigas el perfil del autor de esta fotografías para que veas con que equipo la tomo y que hizo para revelarla.

Crédito: Alan Dyer

https://instagram.com/amazingskyguy

https://www.amazingsky.com/

~Antares

NEOWISE en Little Sable Lighthouse en Mears Michigan.

Canon 6 D Mark II

Sigma 70-200mm @119mm

f / 2.8

4 segundo

IS0 6400

Crédito: Jamie Seidel

https://instagram.com/uh82nvme

www.facebook.com/uh82nvmy_photography

~Antares

La temporada de la Vía Láctea a la vuelta de la esquina.

Crédito: Freelance Photographer

@vandusenvisuals

https://www.vandusenphotography.com/

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

The Great Conjunction of Jupiter and Saturn

Credits:  NASA/Bill Ingalls

Have you noticed two bright objects in the sky getting closer together with each passing night? It’s Jupiter and Saturn doing a planetary dance that will result in the Great Conjunction on Dec. 21. On that day, Jupiter and Saturn will be right next to each other in the sky – the closest they have appeared in nearly 400 years!

Skywatching Tips from NASA

Credits: NASA/JPL-Caltech

For those who would like to see this phenomenon for themselves, here’s what to do:

Find a spot with an unobstructed view of the sky, such as a field or park. Jupiter and Saturn are bright, so they can be seen even from most cities.

An hour after sunset, look to the southwestern sky. Jupiter will look like a bright star and be easily visible. Saturn will be slightly fainter and will appear slightly above and to the left of Jupiter until December 21, when Jupiter will overtake it and they will reverse positions in the sky.

The planets can be seen with the unaided eye, but if you have binoculars or a small telescope, you may be able to see Jupiter’s four large moons orbiting the giant planet.

How to Photograph the Conjunction

Credits: NASA/Bill Dunford

Saturn and Jupiter are easy to see without special equipment, and can be photographed easily on DSLR cameras and many cell phone cameras. Here are a few tips and tricks:

These planets are visible in the early evening, and you’ll have about 1-2 hours from when they are visible, to when they set. A photo from the same location can look completely different just an hour later!

Using a tripod will help you hold your camera steady while taking longer exposures. If you don’t have a tripod, brace your camera against something – a tree, a fence, or a car can all serve as a tripod for a several-second exposure.

The crescent Moon will pass near Jupiter and Saturn a few days before the conjunction. Take advantage of it in your composition!

Get more tips HERE.

Still have questions about the Great Conjunction?

Our NASA expert answered questions from social media on an episode of NASA Science Live on Thursday, Dec. 17. Watch the recording HERE.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.

Encontrar ruinas y obtener fotografías junto a las estrellas es algo fantástico. Villacreces, Castilla y León, España. Villacreces fue el primer despoblado del siglo XX en Tierra de Campos.

La estructura que podemos ver en el centro es la Torre mudéjar.

Crédito: Marcos Alonso

https://instagram.com/elpiratilla

~Antares

Black Holes: Seeing the Invisible!

Black holes are some of the most bizarre and fascinating objects in the cosmos. Astronomers want to study lots of them, but there’s one big problem – black holes are invisible! Since they don’t emit any light, it’s pretty tough to find them lurking in the inky void of space. Fortunately there are a few different ways we can “see” black holes indirectly by watching how they affect their surroundings.

Speedy stars

If you’ve spent some time stargazing, you know what a calm, peaceful place our universe can be. But did you know that a monster is hiding right in the heart of our Milky Way galaxy? Astronomers noticed stars zipping superfast around something we can’t see at the center of the galaxy, about 10 million miles per hour! The stars must be circling a supermassive black hole. No other object would have strong enough gravity to keep them from flying off into space.

Two astrophysicists won half of the Nobel Prize in Physics last year for revealing this dark secret. The black hole is truly monstrous, weighing about four million times as much as our Sun! And it seems our home galaxy is no exception – our Hubble Space Telescope has revealed that the hubs of most galaxies contain supermassive black holes.

Shadowy silhouettes

Technology has advanced enough that we’ve been able to spot one of these supermassive black holes in a nearby galaxy. In 2019, astronomers took the first-ever picture of a black hole in a galaxy called M87, which is about 55 million light-years away. They used an international network of radio telescopes called the Event Horizon Telescope.

In the image, we can see some light from hot gas surrounding a dark shape. While we still can’t see the black hole itself, we can see the “shadow” it casts on the bright backdrop.

Shattered stars

Black holes can come in a smaller variety, too. When a massive star runs out of the fuel it uses to shine, it collapses in on itself. These lightweight or “stellar-mass” black holes are only about 5-20 times as massive as the Sun. They’re scattered throughout the galaxy in the same places where we find stars, since that’s how they began their lives. Some of them started out with a companion star, and so far that’s been our best clue to find them.

Some black holes steal material from their companion star. As the material falls onto the black hole, it gets superhot and lights up in X-rays. The first confirmed black hole astronomers discovered, called Cygnus X-1, was found this way.

If a star comes too close to a supermassive black hole, the effect is even more dramatic! Instead of just siphoning material from the star like a smaller black hole would do, a supermassive black hole will completely tear the star apart into a stream of gas. This is called a tidal disruption event.

Making waves

But what if two companion stars both turn into black holes? They may eventually collide with each other to form a larger black hole, sending ripples through space-time – the fabric of the cosmos!

These ripples, called gravitational waves, travel across space at the speed of light. The waves that reach us are extremely weak because space-time is really stiff.

Three scientists received the 2017 Nobel Prize in Physics for using LIGO to observe gravitational waves that were sent out from colliding stellar-mass black holes. Though gravitational waves are hard to detect, they offer a way to find black holes without having to see any light.

We’re teaming up with the European Space Agency for a mission called LISA, which stands for Laser Interferometer Space Antenna. When it launches in the 2030s, it will detect gravitational waves from merging supermassive black holes – a likely sign of colliding galaxies!

Rogue black holes

So we have a few ways to find black holes by seeing stuff that’s close to them. But astronomers think there could be 100 million black holes roaming the galaxy solo. Fortunately, our Nancy Grace Roman Space Telescope will provide a way to “see” these isolated black holes, too.

Roman will find solitary black holes when they pass in front of more distant stars from our vantage point. The black hole’s gravity will warp the starlight in ways that reveal its presence. In some cases we can figure out a black hole’s mass and distance this way, and even estimate how fast it’s moving through the galaxy.

For more about black holes, check out these Tumblr posts!

⚫ Gobble Up These Black (Hole) Friday Deals!

⚫ Hubble’s 5 Weirdest Black Hole Discoveries

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.

Arco de la Vía Láctea sobre el Parque Nacional del Teide, el cual es el mayor de Canarias. Es una excursión obligada para todos los que visiten Tenerife.

Un paisaje único de cráteres, volcanes y ríos de lava petrificada que rodean la impresionante silueta del Volcán Teide, que se alza hasta los 3.718 m de altitud. 

Crédito: Benjamin Barakat

https://instagram.com/benjaminbarakat

~Antares

Eclipse Total de Sol desde Piedra del Águila, Argentina

Crédito: Natacha Pisarenko

This is the Hyades Cluster! ✨✨✨

As the closest star cluster to Earth, this star cluster contains hundreds of stars with some of the brighter ones in this image transforming into giant stars as they enter a new phase of their lifespan. Some theorize that the creation of this cluster may have happened all at once as many of these stars are the same age and move in a similar way! 💫💫💫

Taken by me (Michelle Park) using the Slooh Canary Two telescope on November 6th, 2020 at 22:15 UTC.