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Transcripts for CNN The Hunt for Planet B 20211121 02:06:15 archive.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from archive.org Daily Mail and Mail on Sunday newspapers.
there? [ laughter ] are they studying us, and what do they think about new york city? [ laughter ] well, let me just say that in our own mickey way galaxy there are 100 billion stars. and we now believe in our universe we have more than 100 billion galaxies. if you do the math the chance that there s a planet like earth with life is very high. i just want you to speculate, do you think in what time frame might we expect to find some evidence of, say, microbial life elsewhere in the universe? i always like to start by saying scientists never like to speculate. we always like the facts. but we always do, correct. we now finally know that exoplanets exist and are common. on the other side lies the possibility to find the true earths with signs of life. the point i want to make is this is the first time in human history we have the technological reach to cross the great threshold. with the james webb space telescope
three-dimension maps of our mickey way galaxy. looking at the data the astronomers see stream of stars going through and one is going the opposite direction of our spins in the mickey way. they are seeing these stra inii the colliding galaxy if you will and able to calculate the dark matter. dark matter is a theory and not conclusively detected but basically astronomers it look at these and calculate how much mass has to be there and sometimes we are seeing factors of five, ten, or a hundred times less mass than should be there. or, you know, that weshe should able to see more and how they came up with the dark matter back in the late 1800s. it sounds fascinating but what does it mean? ? it means we have stars