DARK MATTER

Dark matter is the universe’s biggest mystery. Astronomers can tell that there is something invisible in the spaces between stars, since it’s creating enough of a gravitational pull to bend starlight as it travels toward Earth. However, no one knows what dark matter looks like or what it is made from.

IT’S A MYSTERY
Five percent of the visible universe of stars and planets is normal matter. However, this matter would not have enough gravitational pull to hold the galaxies together, so astronomers know that there must be another kind of matter, even if it’s invisible. Dark matter isn’t made of atoms and does not reflect light or any other kind of radiation, but it appears to make up a quarter of the matter in the universe.



MAPPING IT OUT
This computer simulation shows how dark matter is spread throughout the universe. The yellow areas show the highest concentrations of dark matter. These regions have enough gravity to pull together visible matter, creating galaxies.

What’s the matter?
This image of a distant galaxy cluster shows a ring of dark matter around its center. The ring would not normally be visible, but we can tell where it is from the way that the gravity of dark matter bends the light of distant galaxies.

The Bullet Cluster
The Bullet Cluster was formed when two galaxy clusters collided, one tearing through the middle of the other like a bullet. The cluster’s normal matter (which appears pink here) has been slowed down in the collision by a drag force. However, the dark matter has continued to move outward without slowing, creating a light-bending aura.

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THOUGHT OF THE DAY – 024

“Instead of worrying about what you cannot control, shift your energy to what you can create.”

― Roy T. Bennett-

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THOUGHT OF THE DAY – 023

Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.

Thomas Edison

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THOUGHT OF THE DAY – 021

“I am thankful for all of those who said NO to me. It’s because of them I’m doing it myself.”

 – Albert Einstein-

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THOUGHT OF THE DAY -020

You can’t cross the sea merely by standing and staring at the water.

 Rabindranath Tagore

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THOUGHT OF THE DAY – 019

You can’t always choose who comes into your life but you can learn what lesson they teach you.

Sir Chandrasekhara Venkata Raman

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THOUGHT OF THE DAY – 016

“There is a difference between being a leader and being a boss. Both are based on authority. A boss demands blind obedience; a leader earns his authority through understanding and trust.” ~Klaus Balkenhol~

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THOUGHT OF THE DAY – 015

“Remember, teamwork begins by building trust. And the only way to do that is to overcome our need for invulnerability.”

 ~ Patrick Lencioni~

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