字幕表 動画を再生する 英語字幕をプリント what's upon a time there was nothing. And in an instant there was everything. Ah, Big Bang and the universe was born. Then came the stars, the planets collecting into Galaxies and systems. But imagine there's something that calls everything we know into question nullifies the works of our greatest astronomers. Like a star older than the universe. We'll need to venture far, far away, into uncharted space to meet the perplexing luminary. Our journey takes us 200 light years away from Earth to the Liber constellation. There it is that blue ball of light HD 140283 or simply the Methuselah star nicknamed after the man who sacred texts say lived to be almost 1000 years old. Not bad for a human, but the numbers go into the unimaginable when you're talking about the cosmos. Our universe, as you may know, is about 13.8 billion years old. As for this star, it's Wait, let me stop myself. 1,000,000,000. You hear the word thrown around a lot like in my bank account, but you never really grasped how huge it ISS one billion seconds is 30 years. A 1,000,000,000 steps would take you 15 times around the Earth's equator. If you started counting from one toe, one billion right now, it would take you approximately 95 years to finish. Now multiply all that by 13.8. Okay, the universe is grown up. So how old is this star? How about 200 million years older, yet another unimaginably huge number. Here, let me help you. That's how many seconds there are in 6.5 years. So it's not like this thing was a close call of deciding who came first. This star is strikingly older than the universe. How is it possible? It's the mystery of Methuselah, and it's baffled scientists for a century. But recent research might have finally put a lid on that question or on Lee created Maura uncertainties. I'll get to that. But first, let's compare the universe with our own species. Like humans, there are small stars, young and inexperienced. They burned bright and full of life, ready to tackle the world. There are middle aged stars. They have grown a bit, put on some weight, lost some of that inner fire. Our own star. The sun is in this group with its 4.6 billion years. And finally, there are the senior citizens. They've slowed down, gone gray, certainly not bright. Like the young whipper snappers. Consider Methuselah the grandpa of stars. Now the lifetime of his star depends on two factors. Its mass and the presence of elements heavier than helium and hydrogen. Put simply, the more medals inside a star, the younger it ISS. These factors would help with trying to guess Grandpa Methuselah is age first. The sub giant star is extremely damp. This is because it's been converting hydrogen into helium for billions of years and is running out of fuel. There are also very few medals in it, especially iron. What experts found in the end, this thing formed at a time when there was practically no such element in the universe. This fact once again confirms the paradox. Methuselah must be older. It defies all logic. So scientists, through all their best efforts to refute this theory, astronomer Dr Howard Bond went on a mission to prove that Methuselah is younger than the universe. He got information from the Hubble telescope about the more accurate age of the cosmic body and realized something earth shattering Dr Bond noticed that astronomers had completely forgotten one crucial factor when calculating the stars age. How far away it is from Earth. The brighter star that's further away will look the same as a dimmer one that's closer to us. Ah, pretty important factor in all of this. In his own calculations, he managed the incredible. He found that the oldest star is not 16 billion years old, as was previously estimated, but only 14.5 billion. One problem, though that still means it's older than the universe. The research stall, but not for long. In 2014 astronomers again reduced the age. Now the star was down to 14.27 billion years, and if you take into account all possible errors, this margin is give or take about seven or 800 million years. Thus, Methuselah has entered the plausible framework of 13.8 billion years. Maybe it's not older than the universe, but roughly as old as as for the question of nullifying the works of our greatest astronomers, Dr. Bond considered the similarity between the age of the universe and that of Methuselah to be conclusively scientific proof of the Big Bang they were probably born together in one explosive beginning and started expanding from there. Which reminds me. German astronomers have put forward new data that the universe may only be 11.4 billion years old. Those sciences did it by measuring the movements of stars to figure out how fast the universe is expanding. How about a visual demonstration? Draw some dots on a balloon. Those are Galaxies now inflated. See how the dots move further apart, that you're expanding universe and the real thing stretches faster with time, so you'll see your neighboring dots. Galaxies moving further away at a greater speed. With time and expansion connected, they were able to come up with a new age that yet again makes the universe much younger than Methuselah. It's a back and forth, but scientists aren't giving up. They've started looking into dark matter, which nobody really knows much about. You can't detect it since it doesn't emit light, absorb it or even affected, hence the dark in its name. But it does affect surrounding bodies, so we know it exists, sort of like air. You can't see it, but you know you breathe it. It blows the trees lifts airplanes is the answer to Matthew's LA's origins in Dark Matter. Nobody knows yet The mystery of this Long Live star remains unsolved, and we'll just have to wait and see what they find. Pay If you learn something new today, they give the video alike and share with a friend. And here's some other cool videos I think you'll enjoy. Just click to the left or right and remember, stay on the bright side of life.