with a person falliling into the blblackhole, as they cross thee horizon,n, they don't see anythg happenen. what is interesting is that for them, what used to be space becomes time in their only path forward is to thehe center of te singularity of the blackhole. >> this forces us to stretch our notions of time and space. i had to ask you, if we have been able to s see a blackhole, does that mean one day possibly we will be able to travel new one andd maybe travel through oe or travel through time? is all of this t time by the reresearch you a are doing? >> i would love to get close to a blackhole. who knows maybe we would be able to do it. but if physics works the way it we think it does, if y you c crs the event horizon you will never be ablble to come out. if you cross it, you will never see it again. >> the event horizon telescope project scientist, we appreciate your time today. we appreciate you explain thihis excitingng story to us. >> thank you very much. >> here are some other stories. algerians have kept up their protest against the country's political elite despipite the nw inter