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NASA Astronomy Picture of the Day:

Do magnetic fields always flow along spiral arms? Our face-on view of the Whirlpool Galaxy (M51) allows a spectacularly clear view of the spiral wave pattern in a disk-shaped galaxy. When observed with a radio telescope, the magnetic field appears to trace the arms' curvature. However, with NASA’s flying Stratospheric Observatory for Infrared Astronomy (SOFIA) observatory, the magnetic field at the outer edge of M51's disk appears to weave across the arms instead. Magnetic fields are inferred by grains of dust aligning in one direction and acting like polaroid glasses on infrared light. In the featured image, the field orientations determined from this polarized light are algorithmically connected, creating streamlines. Possibly the gravitational tug of the companion galaxy, at the top of the frame, on the dusty gas of the reddish star-forming regions, visible in the Hubble Space Telescope image, enhances turbulence -- stirring the dust and lines to produce the unexpected field pattern of the outer arms.

Please

Posted by MFish • Profile • 01/19/21 at 11:14PM • Life Stories - Memories • See more by MFish

Please let me know,
if I do my part
and if my words
touch your heart.
I hope they do,
for it is my pleasure
to entertain you.

A Comment by Loy

Your avatar
Loy • 01/20/2021 at 12:06PM • Like 1 • Profile

Your words definitely touch my heart. Thank you!

A Comment by MFish

Your avatar
MFish • 01/20/2021 at 11:12PM • Like • Profile

You are too kind to this old reprobate, but thank you.

A Comment by Amy

Your avatar
Amy • 01/21/2021 at 10:47AM • Like 1 • Profile

Always look forward to reading your posts, thanks you!

A Comment by MFish

Your avatar
MFish • 01/21/2021 at 05:12PM • Like • Profile

Thank you, Amy

More Comments

Love

Posted by MFish • Profile • 01/19/21 at 11:12PM • Life Stories - Memories • See more by MFish

This love, for doing the writing craft,
is what I enjoy. Is that daft?
I hope it is not, it's very true,
for writing words, is what I do.
Some words are good, some are bad,
others are happy and then there is sad.
No matter the mood, nor the time
I will always try to make them rhyme.

A Comment by Loy

Your avatar
Loy • 01/20/2021 at 12:11PM • Like 1 • Profile

Love your poems, never daft!

A Comment by MFish

Your avatar
MFish • 01/20/2021 at 11:11PM • Like • Profile

Thank you, Loy.

A Path

Posted by MFish • Profile • 01/19/21 at 11:09PM • Other • See more by MFish

A path between good and evil,
winds through the conscious mind.
A direction, taken in error
may be a detriment to mankind.
What evil lies, in the hearts of men,
who care not about the lives they see,
resulting in a lack of common decency?

A Comment by Loy

Your avatar
Loy • 01/20/2021 at 12:08PM • Like 1 • Profile

So true

A Comment by MFish

Your avatar
MFish • 01/20/2021 at 11:11PM • Like • Profile

Thank you

NASA Astronomy Picture of the Day:

Why does a cloudy moon sometimes appear colorful? The effect, called a lunar corona, is created by the quantum mechanical diffraction of light around individual, similarly-sized water droplets in an intervening but mostly-transparent cloud. Since light of different colors has different wavelengths, each color diffracts differently. Lunar Coronae are one of the few quantum mechanical color effects that can be easily seen with the unaided eye. Solar coronae are also sometimes evident. The featured composite image was captured a few days before the close Great Conjunction between Saturn and Jupiter last month. In the foreground, the Italian village of Pieve di Cadore is visible in front of the Sfornioi Mountains. New: APOD is now available in Taiwanese from National Central University

Photo by Alessandra Masi

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