NASA Marshall Space Flight Center (NASA-MSFC) How do astronauts poop? Regardless of whether you're in your living room or orbiting thousands of miles above Earth in the international space station, when nature calls, you have to listen. But when you're in zero gravity, something as simple...
"Water is key because almost everywhere we find water on Earth we find life," NASA's web site points out. "If Mars once had liquid water, or still does today, it's compelling to ask whether any microscopic life forms could have developed on its surface." The first missions to Mars ...
They note that a team spirit is crucial for anyone who wants to get this type of position, since NASA screens out job candidates who convey arrogance. The humility to recognize what one does not know is also vital for this job, as is the ability to quickly learn new ...
The center does have a generator, but it draws power primarily from the local electric grid. Construction of the complex began in 1961 and cost $35.5 million for the first phase. It took three years and more than a million pounds of explosives just to hollow out the mountain [source: ...
We used the National Aeronautics and Space Administration (NASA, https://search.earthdata.nasa.gov/search (accessed on 14 March 2021)) daily surface reflectance product MOD09GA, which has a 500 m resolution and rigorous radiation correction, atmospheric correction and geometric correction. The time...
The trip could be shortened by burning more fuel — a process not ideal with today's technology, Patten said. Evolving technology can help to shorten the flight. NASA's Space Launch System (SLS) will be the new workhorse for carrying upcoming missions, and potentially humans, to the red pl...
3. Why does the author say true friendships are hard to come by? A.Friendship can help through pretty tough patches. B.Friendship needs lots of energy and patience. C.Your friends need you to give more help to them. D.You are always to be on your friends’ side.4. What does the ...
Dr. Elizabeth MacDonald is a space physicist at NASA Goddard Space Flight Center and one of the founders of the citizen science site Aurorasaurus. What causes the movement and shape of auroras? Constantly changing input from the sun, varying responses from the Earth's upper atmosphere, and the...
How does the frost-free function affect the energy consumption of a refrigerator? The frost-free function increases energy consumption due to the periodic activation of the heating coils to defrost the freezer, but it offers the convenience of not having to manually defrost the freezer. Is manual...
returning to Earth with samples.This experience in human spaceflight beyond low-Earth orbit will help NASA test new systems,which we’ll need to send cargo(货物)as part of human missions to Mars.Beginning in FY 2018,NASA’s powerfull Space Launch System(SLS)rocket will enable these "proving...