cities and nuclear-powered vacuum cleaners that were made 50 year ago.”
Living longer
Anthony Atala, director of the Wake Forest Institute in North Carolina, belives failing
organs will be repaired by injecting cells into the body. They will naturally to straight to the
injury and help heal it. A system of injections without needles could also slow the ageing
process by using the same process to “tune” cells.
Bruce Lahn, professor of human genetics at the University of Chicago, anticipates the
ability to produce“unlimited supplies” of transplantable human organs without the needed a
new organ, such as kidney, the surgeon would contact a commercial organ producer, give him
the patient’s immuno-logical profile and would then be sent a kidney with the correct tissue
type.
These organs would be entirely composed of human cells, grown by introducing them
into animal hosts, and alloweing them to deveoop into and organ in place of the animal’s own.
But Prof. Lahn believes that farmed brains would be “off limits”.He says: “Very few people
would want to have their brains replaced by someone else’s and we probably don’t want to
put a human brain ing an animal body.”
Richard Miller, a professor at the University of Michigan, thinks scientist could
develop“an thentic anti-ageing drugs” by working out how cells in larger animals such as
whales and human resist many forms of injuries. He says:“It’s is now routine, in laboratory
mammals, to extend lifespan by about 40%. Turning on the same protective systems in people
should, by 2056, create the first class of 100-year-olds who are as vigorous and productive as
today’s people in their 60s”
Aliens
Conlin Pillinger ,professor of planerary sciences at the Open University,says:”I fancy
that at least we will be able to show that life didi start to evolve on Mars wellas
Earth.”Within 50years he hopes scientists will prove that alien life came here in Martian
meteorites(陨石).
Chris McKay,a planetary scientist at NASA’s Ames Research Center.believes that in 50
years we may find evidence of alien life in ancient permanent forst of Mars oronother
planers.
He adds:”There is even a chance we will find alien life forms here on Earth.It mightbe as
different as English is to Chinese.
Priceton professor Freeman Dyson thinks it “likely” that life form outer space will be
discovered defore 2056 because the tools for finding it, such as optical and radio detection
and data processing,are improving.
He ays:”As soon as the first evidence is found,we will know what to look for and
additional discoveries are likely to follow quickly.Such discoveries arelikelytohave
revolutionary consequences for biology, astronomy and philosophy. They may change the
way we look at ourselves and our place in the universe.
Colonies in space
Richard Gottprofessor of astrophysics at Princeton,hopes man will set up aself-sufficient
colony on Mars,which would be a “life insurance policy against whatever catastrophes,natural
or otherwise,might occur on Earth.
“The real space race is whether we will colonise off Earth on to other worlds before
money for the space programme runs out.”
Spinal injuries
Ellen Heber-Katz,a professor at the Wistar Institude in Philadelphia,foresees cures for