is doing but dr hoffman i wonder if it's perhaps too early to say that because i think the same arguments were made about the shuttle program that it's to be usable that it's going to be so much cheaper than let's say the soviet comparison but dan i got from your own lecture is that shuttles turned out to be much more expansive because all the ground operations and how they were service perhaps not very efficiently i understand that this is a house basics market it's technology at this point of time but can we really rely on those figures to be proven in time well. you're absolutely correct that people are waiting to see can space x. maintain the very aggressive launch scheduled that they have and reuse a lot of these first stage rockets which they've been recovering because that's what the price reduction depends on in in large part so yeah it's still early days what i can say though is what happened with the shuttle it was a very complex vehicle amuse very capable it was the most versatile spacecraft probably that we'll ever see but it took a tremendous amount of care and maintenance th

currently a professor of aeronautics and astronautics at the massachusetts institute of technology dr hoffman it's so great to talk to you thank you very much for your time pleasure to be here now the world is still mass mara's by space x. a recent falcon have a launch it was certainly very spectacular i've heard some people compare it to the launch of sputnik or the landing on the moon i wonder though as an engineer do you think that was really such a major technological breakthrough a major milestone in the history of space exploration. no i mean it is evolutionary but what space x. as a whole is trying to accomplish i do think is revolutionary. the idea of strapping together three first stages to make a more powerful rocket is not new the the u.s. has the delta heavy rocket which has been flying for many years now. so that technology is not revolutionary however what space x. has accomplished is to make it a lot more affordable. the rough cost of a delta heavy. it's hard to know exactly but it's in the order of two hundred fifty million dollars. the falcon nine the falcon heavy can carry.

price of what you would have to pay on the delta heavy you can get a lot more science done now dr hoffman just a few moments ago you mentioned this new vision that mosque and other space not as you called them have missed a mosque in particular is talking about space faring civilization and and multiply military species i suspect this is actually very similar to what year harry didn't imagine when you were growing up as a boy in new york drawing all those rockets and that it was more than sixty years later and yet we ask humanity i still there do you think mr musk will see his vision very bold vision i have to say realized in his lifetime well when he talks about millions of people living on the surface of mars i think probably not that's that's a very expansive vision whether or not that will occur in the lifetime of anybody who's alive now i i honestly don't know. but the falcon heavy now has the capability of taking payloads to mars rather significant payloads and. you know one of the exciting things that happened is that nasa as a space agency. originally kind of was reluctant to get

and astronautics now dr hoffman just before the break you mentioned that space x. already has the capability off transporting cargo and perhaps humans to mars i wonder if figuring out the chance for that capability is enough she commands very icy and dangerous voyage to the raf planet oh absolutely not i mean there's a whole slew of things i mean. radiation how we're going to deal with the radiation exposure. just something simple like keeping food viable for three years i mean there's all sorts of things that nasa is looking at that problems that need to be solved to say nothing of the. you know the psychology how are we going to keep people healthy physically. i really think it's important that we first go back to the moon it's been almost fifty years since we've had human beings on the surface of another planetary body and mars is very hard which isn't to say that the moon is easy but it's a lot closer it's easier to get to you can come back relatively quickly if something goes wrong. and many of the things not all but many of the things that we have to accompli

is doing but dr hoffman i wonder if it's perhaps too early to say that because i think the same arguments were made about the shuttle program that it's a reusable that it's going to be so much cheaper than let's say the soviet comparison but dan i got from your own lecture is that shuttles turned out to be much more expansive because all the ground operations and how they were service perhaps not very efficiently i understand that this is a house basics market it's technology at this point of time but can we really rely on those figures to be proven in time well. you're absolutely correct that people are waiting to see can space x. maintain the very aggressive launch scheduled that they have and reuse a lot of these first stage rockets which they've been recovering because that's what the price reduction depends on in in large part so yeah it's still early days but what i can say though is what happened with the shuttle it was a very complex vehicle a muse very capable it was the most versatile spacecraft probably that we'll ever see but it took a tremendous amount of care and maintenance

is doing but dr hoffman i wonder if it's perhaps too early to say that because i think the same arguments were made about the shuttle program that it's three usable doubt it.

american astronaut and now a professor in mit's department of aeronautics and astronautics now dr hoffman just before the break you mentioned that space x. already has the capability of transporting cargo perhaps humans to mars i wonder if figuring out the chance. for that capability is enough she commands these dairy i seem dangerous voyage to the rat planet oh absolutely not i mean there's a whole slew of things i mean. radiation how we're going to deal with the radiation exposure. just something simple like keeping food viable for three years i mean there's all sorts of things that nasa is looking at that problems that need to be solved to say nothing of the. you know the psychology how are we going to keep people healthy physically. i really think it's important that we first go back to the moon it's been almost fifty years since we've had human beings on the surface of another planetary body and mars is very hard which isn't to say that the moon is easy but it's a lot closer it's easier to get to you can come back relatively quickly if something goes wrong. and many of the things not

is doing but dr hoffman i wonder if it's perhaps too early to say that because i think the same arguments were made about the shuttle program that it's a reusable that it's going to be so much cheaper than let's say the soviet comparison but dan i got from your own lecture is the shuttles turned out to be much more expensive because all the ground operations and how they were service perhaps not very efficiently i understand that this is a house basics markets it's technology at this point of time but can we really rely on those figures to be proven in time well. you're absolutely correct that people are waiting to see and spain.

think there are people who are willing to take those risks while i you're certainly one of them dr hoffman we have to leave it there but i really really appreciate your being with us today and sharing your thoughts and your expertise your experience and job viewers please keep the conversation going and our social media pages as for me hope to see you again same place same time here and will to part. of. it. to. you. the way to the united states is dangerous for most of the illegal immigrants. from most. sympathetic i want to. throw another one the last some just about what if many of them look for refuge in the so-called sentry sites the draft used to share information about undocumented migrants with federal authorities the best person to ask than. most you know know how to read up on i guess i'm in a lot of class and they want that. they can watch as they all choose to stay in the country with donald trump in the white house all over for the gravels. both of you what if you could be about to be. able to have many couples won't. deal with the push to put impulse response both of you up w

dr hoffman's team at a clinic in the german city of our expert shows us how hunter virus infections are determined by a blood test quick identification is of the essence. you smell a view the sooner we recognize a nowness the quicker we doctors can react even if we don't have a specific treatment for hantavirus infections we can only treat the symptoms but patients still have a better prognosis if we can identify the illness quickly people who was of interest. it's obviously best to avoid infection in the first place there are simple ways to protect yourself from viruses carried by rodents for example always clean floors and surfaces with a damp towel to avoid dust you don't need any special. gloves are a good idea too because you can contract the virus if it and to scratch as we. if you think you have my sin your house you might want to wear a mask to make your home less attractive for rodents remove all food waste quickly . but. the good news is that if a hunter virus infection is diagnosed early it rarely does permanent damage dr love to scope it back during a study of the long term

dr. ben hoffman from the american academy of pediatrics. good morning to all of you.but, again, we are so sorry for what's happened to you. bode, let me ask you, i mean, what do you hope people will learn by sharing your story, your family's tragedy? >> i hope people sort of raise the awareness of what the danger is. i think people have a natural awareness of water dangers. as a human being we know it's m there sthat knowledge alone is really powerful tool. i think that knowledge is not common practice right now. these drownings are happening not during swim time. i think as a parent those little tidbits of knowledge are things we can share with each other. once it becomes something everyone is aware of, we can really prevent these kind of ag day what happened to us is horrible for us and i think a lot of people shared our pain in that. we want to make it not happen for other people. >> you both told me separately you couldn't have done this without the other. bode said you're motivated by emotion. i'm so touched by that. what do you say to people who say this could n

that amount joined by geoffrey hoffman an american astronaut and currently a professor of aeronautics and astronautics at the massachusetts institute of technology and dr huffman it's so great to talk to you thank you very much for your time pleasure to be here now the world is still mass murder by space x. a recent falcon have a launch it was certainly very spectacular i've heard some people compare it to the launch of sputnik or the landing on the moon i wonder though as an engineer do you think that was real.