"We'll get something on the order of four to five minutes of weightlessness, " explained Mr Pomerantz.
You adapt, you play with the food, you enjoy weightlessness, and you chat with the crew.
But this dream, to Obama, seems credulous and shallow, a destructive craving for weightlessness.
Yet people want to go to space, to look back at Earth, to experience weightlessness.
Their life aboard the station in near-weightlessness requires different approaches to everyday activities such as eating, sleeping and exercising.
The animals are helping scientists understand the effects of weightlessness and high radiation levels experienced in space.
This helped the teachers acclimate to the weightlessness of zero gravity felt on the last 12 parabolas.
There is a weightlessness to their movement, which mixes ballet, Latin and Afro-Caribbean styles and even some breakdancing.
ECONOMIST: A jubilant Cuban dance company returns to Britain
The study took two sets of rats, both of who were subjected to an environment that simulated weightlessness.
The dynamic range is from gentle to soft, from weightlessness to absolute stillness.
The return home is not a smooth transition from weightlessness to 1-g for astronauts that return home via the Soyuz capsule.
FORBES: What's It Like Experiencing Gravity After Being In Space For 6 Months?
Robots are much easier to feed, experience little trouble when subject to prolonged weightlessness, and are much easier to shield from radiation.
Initially launching from Mojave, California, participants will get a view from the edge of space for several minutes and briefly experience weightlessness.
CNN: Private space pioneers: We're inheritors of Apollo legacy
SpaceShipII is expected to take passengers to an altitude of 68.3 miles in just a two-hour flight that includes a four-minute period of weightlessness.
FORBES: How One Russian Got A Trip To Outer Space With Leo DiCaprio
The space walk destroyed all that. (No wonder Mission Control has tried to keep this from ever being necessary.) Oh, the lie of weightlessness!
In preparation for longer spaceflight, scientists have designed shields to deflect harmful energetic particles, and continue to study the ill-effect of weightlessness on astronauts.
The moment your body hits weightlessness it goes through a mutation.
From there, the company says, passengers will experience the feeling of weightlessness and see a view of the Earth that spans a 1, 000 miles in any direction.
Humans must first learn to cheaply and safely propel themselves into space regularly, and then, once there, must adapt to high levels of radiation and to weightlessness.
And that's a great question because one of the hard things about long-duration space flight is the human body dealing with weightlessness and a lack of gravity.
WHITEHOUSE: President Obama's call to the International Space Station
She cupped the wasps in her hand, the window frame shuddering beside her, as the storm sneaked in a draft to stir the dead wings, their stiffened weightlessness.
There were many aspects of a real mission that could not be simulated in a Moscow suburb, of course - such as weightlessness and the dangers associated with space radiation.
Radiation and weightlessness pose dangers to human health.
CNN: Bush: 'It is time for America to take the next steps' in space
But in recent years, he has lobbied NASA extensively to get the agency to use him for geriatric research, helping to connect the space agency's researchers with scientists eager to see how weightlessness may affect human aging.
Membership will make it much easier for British scientists to propose experiments and to get access to facilities like a zero-G plane, which generates short periods of weightlessness by flying a series of parabolas in the sky.
Now Major Peake, as he waits to be assigned a space mission, is in an ongoing programme of spacesuit training, zero-g flights to "practice weightlessness" and 12-day stints 20m (65ft) under water to research "crew behaviour for long-duration missions".
BBC: Major Tim Peake says he is not too old to go into space
Weightlessness not only sees animals use their muscles less, but causes changes in the chemical reactions within the muscle cells, explained Nathaniel Szewczyk from the University of Nottingham, who is the lead author on the new study in the journal of the Royal Society Interface.
That means Mars-bound astronauts will also have to skip out on the ground-based psychological support sessions that astronauts and cosmonauts working on the international space station routinely have just to make sure microgravity has not gone to their heads (Before Soviet cosmonaut Yuri Gagarin became the first man in space in 1961, experts were afraid weightlessness might cause schizophrenia, explained one doctor).
CNN: Mars on the brain? Red Planet pioneers to face cosmic mind trip
应用推荐