thousand five hundred planets outside our solar system in our galaxy. and the number of known exoplanets is rising fast we can even estimate how many of them might be like the earth. then if you go out at night and count five stars one two three four five then one out of five stars is another sun that could have a planet like ours. and and with billions of stars in our galaxy the milky way alone. well it s just so exciting to search for life in the universe. lisa cota neg dreams of finding life on an exoplanet like many other astrophysicists the planet hunter at cornell university in the u.s. is looking for the proverbial needle in a haystack. the object of her search an exoplanet resembling
works when an exoplanet passes in front of its star it blocks a small part of the star like during its transit. this tiny dip in the light level can be detected and given the regularity and the extent of the darkening astrophysicists calculate the jury. the planets orbit its math and science. telescopes at the european southern observatory in chile and nasa space telescopes used this method to discover an entire planetary system depth trappist one. this is what it means look like seven planets roughly the size of the earth and three or four of them could potentially support life. in general up there with basically i m an optimist and i believe if there is life out there we will track it down in the next few years. on i m really excited.
this is a watershed in human history like the copernican revolution when we learned that the earth is not the center of the universe and now we will hopefully find out whether we re alone or not in the. landfill or that. she expects a breakthrough soon the james webb space telescope is due to be launched in twenty twenty a collaboration by nasa the european space agency and the canadian space agency webb will be the first to pick up faint signals that could help pinpoint life. and under construction at the european southern observatory is the extremely large telescope it s expected to start operating in twenty twenty four to get a detailed look at planets circling other stars. the world s biggest particle accelerator is the large hadron collider a twenty seven kilometer long ring of one hundred meters underground. at the
this is a watershed in human history like the copernican revolution when we learned that the earth is not the center of the universe and now we will hopefully find out whether we re alone or not. lengthened or that. she expects a breakthrough soon the james webb space telescope is due to be launched in twenty twenty a collaboration by nasa the european space agency and the canadian space agency webb will be the first to pick up faint signals that could help pinpoint life. and under construction at the european southern observatory is the extremely large telescope it s expected to start operating in twenty twenty four to get a detailed look at planets circling other stars. the world s biggest particle accelerator is the large hadron collider a twenty seven kilometer long ring of one hundred meters underground. and the
works when an exoplanet passes in front of its star it blocks a small part of the starlight during its transit. this tiny dip in the light level can be detected and given the regularity and the extent of the darkening astrophysicists calculate the duration of the planet s orbit its mass and science. telescopes at the european southern observatory in chile and nasa space telescopes use this method to discover an entire planetary system depth trappist one. this is what it may look like seven planets roughly the size of the earth and three or four of them could potentially. life. has been going around up there with basically i m an optimist and i believe if there is life out there we will track it down in the next few years. all. i m really excited.