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Date & time Sep 15 '17
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The end of the galaxy as we know it

The end of the galaxy as we know it?

Our Milky Way galaxy is an anomaly in more ways than one. And now, NASA scientists say they know exactly when it will come to an end.

In a universe that is forever spreading apart, the Milky Way has been moving closer to celestial neighbor the Andromeda galaxy. But whether we are in for intergalactic Armageddon or an extraterrestrial fender bender has been a mystery until now.

"Very interestingly, we find that Andromeda galaxy does appear to be coming straight at us," said Roeland van der Marel, an astronomer at the Space Telescope Science Institute in Baltimore. He was scheduled to speak at a NASA press conference Thursday.

The discovery was made thanks to images taken over the 22 year lifespan of the Hubble Space Telescope. But the quest to determine the Milky Way galaxy's expiration date has been undertaken by astronomers for more than 100 years. Now, for the first time, NASA scientists say they know "with certainty" when our beloved galaxy will cease to exist as we know it, what it will look like and how it will happen.

New data collected by the Hubble Space Telescope proves, NASA says, that in 4 billion years the Milky Way and Andromeda will collide or pass each other by so closely that the gravitational force each exerts on the other will cause them to slow down to the point of merging. The merger will be completed 6 billion years from now.

At the outset of universal existence, Andromeda and the Milky Way were knock off bracelet alhambra van cleef each going their separate ways, van der Marel said.

"They have been approaching each other for the last 5 billion years, he said. the first 8 billion years, they were moving away from each other, and now they are moving closer together and that will continue, always."

In our local universe, which consists of around 50 galaxies, according to van der Marel, the Milky Way and Andromeda are goliaths. There are two galaxies that have around one tenth the mass of two giants, and the rest are less than 1%. Each exists at the center of its own universal microcosm, with smaller galaxies swirling around similar to a solar system.

It is the massive gravitational pull that ultimately drew the Milky Way and Andromeda together, and will ultimately cause them to become one.

"The clear finding is, we are going to merge with Andromeda," van der Marel said. "In the past, it was just a possibility, but now it is a known fact that this will happen."

The finding was determined by comparing pictures of the sky taken by the Hubble Space Telescope over a number of years and comparing the movement of the galaxies, allowing scientists to determine the trajectory of the Andromeda for the first time.

There is a 9% chance that M 33, a satellite galaxy of Andromeda, will hit the Milky Way first in what van der Marel called a punch, causing it to become a satellite of the new galaxy that is formed.

What an intergalactic merger looks like

Van der Marel described it as a "really big cosmic pileup" that will light up the sky.

When the two galaxies hit, each containing its own set of stars and cosmic gases, the result will be the formation of many new stars all knock off bracelet van cleef alhambra shining bright.

The Milky Way, as it exists now, is a flat disc shape similar to a frisbee. Andromeda is more spherical. When the two combine, they will form an galaxy, or what van der Marel described as a football shaped galaxy. Rather than seeing a band of stars on the cosmic horizon, someone on Earth would theoretically be surrounded by them as shown in a simulation van cleef bracelet alhambra fake unveiled to show what the night sky will look like in 6 billion years.

The new vision of the stars won be the only earthly changes.

"Our sun and Earth will go on a new journey through the universe," van der Marel explained.

When Andromeda gets here, the sun will likely be pushed out much farther into the universe. By that time though, Earth will have become too hot to be inhabited by humans anyway.

Our sun will not be directly hit when the initial collision happens in 4 billion years. But in 6 billion years, when the merger is complete, our sun will die.

Life on Earth as we know it will certainly not be possible by the time this great galactic merger is expected to take place. But as van der Marel said, there are "many more uncertainties than the laws of physics," and the human race may well have figured out how to carry on with existence.

a very long time from now, so people don't have to lie awake or take out insurance, van der Marel said. makes it really special is it is going to happen to us, it our sun, it our planet, and humans are really fascinated about what our fate is going to be.

Star Trek had this figured out 30 years ago. It has taken government funded programs much longer to come to these same conclusions. The study of Quantum physics using the much maligned Gamma Theta Epsilon postulation put forth by Di Vinci in the 16th Century has already proven this but, was previously rejected by JPL astrophysicists. Consequently, efforts to further the time warp continuum project has been set back many generations. For those who are earth bound, having your feet firmly planted on terracotta, does the term me up Scotty have a ring of familiarity? What does this mean for humankind? Simply that as the two galaxies approach each other the opportunity for finding and traveling to another earth like planet is increased exponentially. Earth resources will likely have been depleted long before the merger begins so, survival of the human species will hinge on our ability to monitor the cosmic events leading up to it while developing a timetable and the means to capitalize on this opportunity. This means once again, to the Future where Copernicus postulated his oft maligned Phi Tri Gamma Alpha Codex which is the basis of Einstein theory of relativity. Let hope cooler heads prevail and we get this done right the first time. Only God knows if we get a second chance. Tally Ho!

Humanity will be long gone by the time this happens. Also, the article tries to deceive you into thinking that the Sun death will be the result of the collision, but nothing could be farther from the truth. The Sun is going to die in approximately 3 5 billion years as its supply of hydrogen fuel is depleted, and regardless of whether Andromeda collides with us.

This study also assumes that the properties of the Universe are static, but they are not. We believe the universe is expanding, but we cannot say with certainty whether the universe will continue to expand forever, or if it will ultimately reverse course and contract back into a primordial of a pin.

There are still too many unknowns to declare anything that will happen billions of years from now.

The ultimate fate of the universe has actually become far clearer in the last ten years. Perhaps the most dramatic development in cosmology within that time has been the discovery that galactic recession is actually accelerating, utterly defying the conventional wisdom re. gravity and the known mass in the universe. This is currently attributed to energy The universe is due to continue expanding until an eventual and utter heat death in which all particle activity ceases. Don hold your breath for this eventuality. It not due for the next google years. Just to picture how long that is: there are approximately 10 to the 85th power atoms in the known universe. This time scale will exceed that by a factor of a quadrillion.

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