joana&pedro: ASTRONOMÍA / ¡UNO DE LOS MISTERIOS SIN RESOLVER!

Rastrean el origen de las 'ráfagas rápidas de radio' (FRB) ...
Provenientes de nuestra galaxia, los científicos lograron detectar un estallido de radiación "núnca antes vista" de un magnetar, una estrella muerta con un campo magnético muy potente ...

El telescopio espacial Integral, operado por la Agencia Espacial Europea, logró en colaboración con otros telescopios rastrear con precisión el origen de unas ráfagas rápidas de radio (FRB, por sus siglas en inglés) detectadas a finales de abril.

La investigación reveló que estas FRB, consideradas como uno de los principales misterios sin resolver de la astronomía y cuya verdadera naturaleza sigue siendo desconocida, provienen de un magnetar, una estrella muerta altamente magnética conocida como SGR 1935 + 2154 que se encuentra en el centro de la Vía Láctea a 'solo' 30.000 años luz de distancia de nuestro planeta.

Además del estallido de rayos X de alta energía, el magnetar también emitió ondas de radio, algo que nunca antes se había visto en este tipo de estrella. Las FRB, descubiertas por primera vez en 2007, duran milisegundos y aparecen temporal y aleatoriamente desde el espacio. Son extremadamente impredecibles, a pesar de que algunas liberan más energía que 500 millones de soles.

"Nunca antes habíamos visto una ráfaga de ondas de radio que se asemejara a una ráfaga de radio rápida de un magnetar", indicó Sandro Mereghetti, del Instituto Nacional de Astrofísica (INAF-IASF) en Milán (Italia), autor principal del nuevo estudio, publicado en The Astrophysical Journal Letters.

"Fundamentalmente, el generador de imágenes IBIS en Integral nos permitió determinar con precisión el origen del estallido, poniendo al descubierto su asociación con el magnetar", indicó el coautor Volodymyr Savchenko, del Centro de Datos de Ciencia Integral de la Universidad de Ginebra (Suiza).

Leer el articulo completo, clic! en el enlace: Actualidad.rt.com / Ciencia

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Quando eu te falei em amor

Quando os meus olhos te tocaram
Eu senti que encontrara
A outra, metade de mim
Tive medo de acordar
Como se vivesse um sonho
Que não pensei em realizar
E a força do desejo
Faz me chegar perto de ti

Quando eu te falei em amor
Tu sorriste para mim
E o mundo ficou bem melhor
Quando eu te falei em amor
Nos sentimos os dois
Que o amanha vem depois
E não no fim

Estas linhas que hoje escrevo
São do livro da memória
Do que eu sinto por ti
E tudo o que tu me das
É parte da história que eu ainda não vivi
E a força do desejo
Faz me chegar de ti

Quando eu te falei em amor
Tu sorriste para mim
E o mundo ficou bem melhor
Quando eu te falei em amor
Nos sentimos os dois
Que o amanha vem depois e não no fim

André Sardet

Collide

The dawn is breaking
A light shining through
You're barely waking
And I'm tangled up in you
Yeah

But I'm open, you're closed
Where I follow, you'll go
I worry I won't see your face
Light up again

Even the best fall down sometimes
Even the wrong words seem to rhyme
Out of the doubt that fills my mind
I somehow find, you and I collide

I'm quiet, you know
You make a first impression
I've found I'm scared to know
I'm always on your mind

Even the best fall down sometimes
Even the stars refuse to shine
Out of the back you fall in time
I somehow find, you and I collide

Don't stop here
I've lost my place
I'm close behind

Even the best fall down sometimes
Even the wrong words seem to rhyme
Out of the doubt that fills your mind

You finally find, you and I collide
You finally find You and I collide
You finally findYou and I collide
Howie Day

Everything

You're a falling star, You're the get away
car.
You're the line in the sand when I go too
far.
You're the swimming pool, on an August day.
And You're the perfect thing to see.

And you play it coy, but it's kinda cute.
Ah, When you smile at me you know exactly what you
do.
Baby don't pretend, that you don't know it's
true.
Cause you can see it when I look at you.

And in this crazy life, and through these crazy
times
It's you, it's you, You make me sing.
You're every line, you're every word, you're
everything.

You're a carousel, you're a wishing well,
And you light me up, when you ring my bell.
You're a mystery, you're from outer space,
You're every minute of my everyday.

And I can't believe, uh that I'm your man,
And I get to kiss you baby just because I
can.
Whatever comes our way, ah we'll see it
through,
And you know that's what our love can do.

And in this crazy life, and through these crazy
times
It's you, it's you, You make me sing
You're every line, you're every word, you're
everything.

So, La, La, La, La, La, La, La
So, La, La, La, La, La, La, La

And in this crazy life, and through these crazy
times
It's you, it's you, You make me sing.
You're every line, you're every word, you're
everything.
You're every song, and I sing along.
Cause you're my everything.
yeah, yeah

So, La, La, La, La, La, La, La
So, La, La, La, La, La, La, La

Michael Bublé