Estimates by astronomers indicate that there could be more than 100 BILLION Earth-like worlds in the Milky Way that could be home to life. Think that’s a big number? According to astronomers, there are roughly 500 billion galaxies in the known universe, which means there are around 50,000,000,000,000,000,000,000 (5×1022) habitable planets. That’s of course if there’s just ONE universe.In fact, just inside our own Milky Way Galaxy experts now believe are some 400 BILLION STARS, but this number may seem small as some astrophysicists believe that stars in our galaxy could figure the TRILLION. This means that the Milky Way alone could be home to more than 100 BILLION planets.However, since astronomers aren’t able to see our galaxy from the outside, they can’t really know for sure the number of planets the Milky Way is home to. They can only provide estimates.To do this, experts calculate our galaxy’s mass and calculate how much of that mass is composed of stars. Based on these calculations scientists believe our galaxy is home to at least 400 billion stars, but as I mentioned above, this number could drastically rise.
天文学家估计表明,有可能超过1000亿地球类似的银河系,可能是家里的生活世界。认为这是一个很大的数字?据天文学家,还有约500十亿星系在已知的宇宙,这意味着有围绕50,000,000,000,000,000,000,000(5×1022)居住的行星。那是当然的,如果这里有一个宇宙。<br>事实上,就在里面我们自己的银河系专家认为是大约400亿颗恒星,但这个数字可能看起来小一些天体物理学家相信,在我们的银河系恒星可能身影万亿美元。这意味着,仅在银河系可能是家庭超过100颗行星。<br>然而,因为天文学家无法看到从外面我们的星系,它们不能真正知道肯定行星数量的银河系是家庭。他们只能提供估计。<br><br>要做到这一点,专家们计算我们银河系的质量和计算太多,质量如何是由恒星。基于这些计算科学家认为我们的星系是家庭至少400十亿颗恒星,但正如我上面提到的,这个数字可能会大幅上升。
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