Health英國假期

Health.BV5AG 飛抵 英國London Heathrow airport,航程約16小時。

在新竹市的兩位國中孫,已於日前自行先飛往倫敦。

(2017/08/03)

Terrifying ‘dark universe’ discovered within our universe and it spells DOOM for humanity

Terrifying ‘dark universe’ discovered within our universe and it spells DOOM for humanity.
A MYSTERIOUS ‘dark universe’ which exists alongside our own visible universe has been mapped by scientists. And the findings spell ultimate doom for humankind.
By JON AUSTIN, PUBLISHED: 15:03, Thu, Aug 3, 2017 | UPDATED: 16:21, Thu, Aug 3, 2017

A team from the international Dark Energy Survey (DES) collaboration believes their findings support the theory that about just four percent of the present composition of the universe is ordinary matter.
The rest, the team says, is made up of substances that remain ‘dark’, largely un-knowable and in many cases simply theoretical.
The research backed scientific hypothesis that 26 percent of the universe is made up of mysterious cold dark matter, and the bulk – a whopping 70 percent – is “in the form of an elusive dark energy.”
Our knowledge of both is extremely limited but Dark Energy is believed to be responsible for the accelerating expansion of the universe.
And the continued expansion seem to provide concrete evidence that the universe will ultimately suffer a ‘heat death’ where energy is exhausted and what is left behind is very cold and very dead.

Dark-Matter

This image of the NGC 1398 galaxy was taken with the Dark Energy Camera.

Cold dark matter is theorised to be a non-luminous material which exists is comprised of weakly interacting particles.

When it is made of high-energy randomly moving particles, created soon after the Big Bang, it is described as hot dark matter.

Meanwhile, dark energy is a theoretical form of energy thought to permeate space, accelerating the expansion of the universe at an increased rate.

David Bacon of the University of Portsmouth said: “Dark matter is invisible to us, but we can see its effects – its gravity is bending the light from distant galaxies, so they look distorted to us. We can work back from measuring the distortions to mapping the cause. It’s so exciting to see this truly vast map of the dark Universe at last.”

The Best Space Photos of the Year

Fri, March 24, 2017

Stunning imagery taken from Space

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