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Welcome to my human space exploration. Humans were not created to live in one planet. Out of more 200 billion planets in the universe, why would wan't too limit ourselves this beautiful planet of our when we could travel in space and populate other planets out there.

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"Ocean Quahog.             Some collected specimens have been calculated to be more than 400 years old. These animals show exceptional longevity with a highest reported age, for ‘Ming’ the clam, of 507 years. The clam so named as it would have been alive during the Ming Chinese Dynasty".

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"Ocean Quahog.             Some collected specimens have been calculated to be more than 400 years old. These animals show exceptional longevity with a highest reported age, for ‘Ming’ the clam, of 507 years. The clam so named as it would have been alive during the Ming Chinese Dynasty".

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Researchers have identified a cellular mechanism that allows them to reverse ageing in mouse DNA and protect it from future damage.

They've shown that by giving a particular compound to older mice, they can activate the DNA repair process and not only protect against future damage, but repair the existing effects of ageing. And they're ready to start testing in humans within six months.

"The cells of the old mice were indistinguishable from the young mice, after just one week of treatment," said lead researcher David Sinclair from the University of New South Wales (UNSW) in Australia and the Harvard Medical School in Boston.

"This is the closest we are to a safe and effective anti-ageing drug that's perhaps only three to five years away from being on the market if the trials go well."

Sinclair and his team made headlines back in 2013 when they found that the cells of younger mice contained more of a compound called nicotinaminde adenine dinucleotide, or NAD+, than their older counterparts.

Not only that, but when they gave the older mice more NAD+, they started to look younger, too.

It was a big deal at the time, but one of the tricky things about medicine is that in order to show that something could work as a potential treatment, you need to first understand how it's acting in the body.

And although the researchers knew NAD+ was having an impressive effect, they couldn't say for sure how it was doing it.

Now, Sinclair and his team have released a new study, where they outline in detail the mechanism through which NAD+ protects DNA from the damage of ageing and radiation in mice.

So how does it work? When we're born, all of our cells have the ability to repair DNA damage, which we experience constantly through random mutations when our cells divide, or whenever we go out in the sun.

But as we get older, our ability to patch up this damage declines, and our cells being to age.

What the researchers have now shown in this latest study is that a lot of this damage comes down to a DNA-repair compound called PARP1.

When there's a lot of NAD+ in a cell, PARP1 does its job and keeps our DNA healthy. But when NAD+ drops naturally with age, PARP1 starts to decline, and damage builds up.

To see whether they could take advantage of this cellular mechanism, Sinclair and his team developed a drug that contains the precursor to NAD+, known as NMN, or nicotinamide mononucleotide.

In mice, boosting older mice with NMN was enough to kick DNA repair into action and even reverse existing DNA damage.

They now plan to trial a similar drug in humans before the end of the year - and not just for anti-ageing purposes, but also to protect against DNA damage of any kind.

In fact, the team is collaborating with NASA to see if NMN could help protect its astronauts against harsh space radiation on their four-year journey to Mars, during which it's predicted that 5 percent of the astronauts' cells would die, and their chances of cancer would approach 100 percent.

The drug could also be useful for groups that are particularly vulnerable to the effects of radiation, such as frequent fliers and those who undergo frequent CT scans or X-rays.

"The idea is to protect the body from radiation exposure here on earth, either naturally occurring or doctor-inflicted," Sinclair told Time.

"If I were going to have an X-ray or a CT scan, I would take NMN beforehand."

Survivors of childhood cancer could also benefit - right now, 96 percent go on to suffer a chronic illness by age 45, including cardiovascular disease, Alzheimer's, or cancers unrelated to their original cancer.

"All of this adds up to the fact they have accelerated ageing, which is devastating," said one of the researchers, Lindsay Wu. "It would be great to do something about that, and we believe we can with this molecule."

Before we get too excited, we need to keep in mind that many, many studies in mice are not replicated in humans.

So until the results of these early clinical trials in people begin to trickle in, there's no promise that NMN will help protect human DNA.

But understanding this mechanism of DNA ageing is a big step towards better understanding how to keep our cells healthier for longer, and that's pretty exciting.

The research has been published in Science.

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It's Happening: Scientists Can Now Reverse DNA Ageing in Mice

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Researchers have identified a cellular mechanism that allows them to reverse ageing in mouse DNA and protect it from future damage. They've shown that by giving a particular compound to older mice, they can activate the DNA repair process and not only protect against future damage, but repair the existing effects of ageing.

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"The future is coming to Miami. Veteran developer and recreational pilot Dan Kodsi is combining his passions for building and flying with an eye on a future he believes is closer than most of us think with his new building, the PARAMOUNT Miami Worldcenter".

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"Our Sun will die as well. Once all the energy in the is used up, the Sun will slow die but not in an explosion called supernova. Our Sun is very small relative to other Suns, so its death will not be a cataclysmic explosion". 

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"Our Sun will die as well. Once all the energy in the is used up, the Sun will slow die but not in an explosion called supernova. Our Sun is very small relative to other Suns, so its death will not be a cataclysmic explosion". 

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Humans were not created to live a short life on earth. We are one intelligent species of all species on earth. I don't see a reason why we shouldn't crack the code of death. We are finger-tips away from decoding the code of death. Scientist are working on a pill to enhance human life span on earth. We will live for more 150 years or indefinitely in the future. Leave your comment if your think scientist will never be able to save us from dying due to ageing.

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Just like any other star in our universe our Sun will die. We have documented many deaths of stars in our milky way galaxy alone. With all the knowledge we have about dying stars, we know that are Sun is a dwarf star and it won't die with a cataclysmic explosion just like huge stars when they die. Four billions years to come our Sun would have used all it's solar energy and will die, taking planets like Mercury,Venus, Earth and probably Mars to its grave. Other planets will be frozen rocks in the huge vacuum of space.

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Human civilisation has a got a very bright future when it comes to travelling from point A to point B. Flying cars are here people, traffic jam might be a thing of the past for us the daredevils.

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The future is very exciting for us, the explorers. We know so much about our planet it has become a small place for us to explore it anymore. Within the next decade we will send off a group of astronaut to planet mars to pave a way for human civilisation. Once the first group astronaut settled to mars, we will send other groups every after two years to colonise Mars and start a living. After some time new children called Martians will born. They will come to know mars as their home. When they come to visit earth they will be aliens to us.

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This would be a very excited thing. It would enable people to live longer than they living now. I read on the internet that there are animals that live more than 400 years.