NASA Explorers S4 E1: Orbiting Laboratory

Feeling weighed down? Feeling the
constant pull to the Earth? We all are. It’s gravity, and it’s a part of every
single thing we do including our science. But what if we’re 250 miles above Earth
aboard the International Space Station – a laboratory like no other that offers
something we can’t get on our home planet. [MUSIC] My name is Dr. Serena Aunon-Chancellor,
NASA astronaut. I recently flew to the International Space Station aboard
Expedition 56 and 57. My relationship with microgravity is that I got to live
in microgravity for a hundred and ninety seven days when I was on orbit. So many
people ask what is microgravity. Why do you float onboard the
International Space Station? Gravity acts upon all objects. We’re never truly in
zero gravity onboard the space station but because the space station is
traveling so fast around the surface of the Earth, we’re actually in a constant
freefall and that’s why everything and everybody appears to float onboard the
space station. We are experiencing the Earth’s gravity. In fact we’re actually
experiencing about 90% of what you all experience on the surface of the Earth.
The difference is we’re just moving so fast that as we fall we actually fall
around the earth and that defines orbit so microgravity means we’re not, you know,
it’s not the absence of mass which of course creates gravity, but all the
objects together are in the same gravitational field and all falling
together. So yes it is a lot of fun floating around of course it’s one of the
exciting parts of being up here on board and being an astronaut, but even more
importantly it lends itself to all the amazing experiments that we can do on
board that take advantage of that microgravity environment to do things
that we can’t do on Earth but that can benefit life back on Earth. The important thing is it’s so different
than what we have here on the ground where everything
is pulled by the Earth at what we call one force of gravity. And what that does
is it allows you to see the small forces, the small processes, the small effects of
what goes on in life cell development or technical processes like combustion or
fluid flow, and it helps you understand things that you may not have fully
understood on Earth where you see something happening, something assembling
or disassembling, or the shape of something now going into three dimensions
and you learn ah that’s really what was driving this thing on Earth that we
didn’t really understand. On Earth, gravity is affecting all research we do
and sometimes that can get in the way. Studying things in different
environments can give a better picture of how they work. From diseases to fires,
and even things that make up products like milk or shampoo. One of the main
things we perform on the ISS is science in fact probably 70 to 80 percent of our
day is performing scientific experiments. The International Space Station is a
great place to do research for several perspectives. One of those is it’s a big
huge satellite orbiting the Earth, so if you have an instrument that wants to
look at the Earth or look out at space we provide the power, we provide the data,
the platform for it. You don’t have to go do your own new satellite. The outside of
the ISS is also a very extreme environment and sometimes you learn
things by exposing your hardware, your your polymers, or whatever to a different
environment you’ll see something happen different than what is on the Earth, but
probably one of the most pervasive uses of the ISS is just the microgravity
environment. The things that we do inside the ISS to be able to do your experiment
in space without gravity which we’ve all lived with forever here on the ground
which we live with every day and we don’t even realize how it governs so
many things that happen around us. If you take gravity away now some of the small
phenomena, some of the small processes and forces start to come out and you can
see them and you can see the behaviors of your experiment happening differently
in space and in microgravity than you would on the ground. It takes a lot of
people to make all of that microgravity science happen. Four thousand scientists
companies and students from over 100 countries have sent more than 2700
experiments to the orbiting laboratory. Over the past 20 years, these studies
have unlocked new discoveries and even kicked off hundreds of new microgravity
experiments. We’re studying the physiology of how blood flow and the
fluids in our body shift as the result of microgravity. Yesterday I spent some
time setting up a Veggie experiment. We’ll actually be growing mizuna lettuce up
here. Drew and I actually have been helping start a new experiment called
the Cold Atom Lab which will create one of the coldest places in the universe
right here on the space station, almost at Absolute Zero. But who are these
scientists? And how do they get their research to the space station? This
season we’ll take you behind the scenes of the years of preparing an experiment
for space. You’ll see it launched off the planet and splash back down in the ocean,
and hear what it’s like to hand off your research to the astronauts who serve as
the eyes and hands of the scientists aboard the International Space Station. [Music] This is our first project that is going
up to the station, and our first project working with anyone involved in the
space program, so it’s a very exciting time for us. It’ll be interesting to see
how all of our planning is played out when someone else has the experiment in
their hands.

65 thoughts on “NASA Explorers S4 E1: Orbiting Laboratory

  1. Which episode in the series will have the subject of crystal , dust – plasma experiments?

  2. Enserio que ver este tipo de videos me motivan mucho, yo quiero ser un astronauta!!😍😍🤤🌎🌝🌚🌱

  3. We send people on excellent physicals and mental health to find how some medication works on the human body . Do you think you can get better results if you send someone with some kind of illness and see how the medication works on an unhealthy subject?

  4. Awesome episode and a great overview! I can't wait for the rest of the series!

  5. Now imagine if there was a united earths research lab on the moon and the possibilities for humanity to discover. My only question is when your on the iss do you feel the free fall or do you not notice that?

  6. It is surprising how little we know about how human do in low gravity over time. It is that kind of knowledge that we will need before going to spend considerable time on the moon and or Mars. And one would think it would be considerably cheaper to test in low earth orbit, and with less risk more distant missions may impose.

    I'd like to suggest that we build a relativly cheap low earth orbiting station to test a lunar and Martian like gravity to see how humans respond over time.

    Two Biglow like inflatable habitats at both the ends of a rotating structure held together with say 6 tethers. And a docking pod in the center that can real in or let out the pods acording to how weight is distributed. And, an inflatable tube positioned inside the tethers would connect the inflatable biglow habitats to the center docking pod for moving equipment and people. For simplicity, power can be beamed from a nearby unattached pv array.

  7. I wonder, could you make a type of ferrofluid that will lattice, in space and then harden. To perhaps build giant scaffolds or structures in space

  8. Tôi có ước mơ đó là
    Một ngày nào đó tôi được làm việc ở nasa , và tôi đang cố gắng học thật giỏi để một ngày nào đó được làm việc ở nasa

  9. it's remarkable what people have been able to accomplish… keep up the good work 🙂

  10. I am currently studying mechanical engineering in college and I’m hoping to work for NASA some day!

  11. Вот кому точно не грозит китайский коронавирус.

  12. Did anyone else watch the explosion in space? Wednesday, January 29, 2020 10: 20/30 PM Baja California MX

  13. Celebrate the long stay of the ISS and the success of the spacewalk mission. Please return to the ground safely.

  14. That experiment at 4:21 looks like it could really benefit from a module on the ISS that's a rotating torus.

  15. Well. It's official, SpaceX has won, just like we all thought. As long as it is caught in the grip of congress, NASA will never have a manned deep space program again – at least one with their own rocket.

  16. This is so informative! The viscosity and fluidity of blood is a good thing to study in space, not just matter. Gravity does affect the flow and pressure in the heart valves too etc. awesome stuff. You guys need to hire more people who are multi-faceted in other areas of science.


  18. make sure you put hair spray on to keep your hair up on the 0 gravity plane when its diving ha ha ha lets go to the moon again ….. not

  19. Go learn something about Van Allen radiation belt  and stop lying everyone 🙂

  20. I would think the space station should require the inhabitants to shave their hair or at least wear hair nets or something to keep the hair from jamming up equipment etc..

  21. Very interesting stuff😁
    I noticed in the video they mentioned quite a few times the word GRAVITY
    What is that?

  22. if you're busy with something stay home.
    i don't even know how to put this tumor together. last time i checked if a possum is competing with a raccoon. it's just 2 rodents. totally.

  23. What if there was a space station manufacturer company? That could create orbital ports, orbital building stations, orbital clean up stations, or even a space hook, OR maybe even a space elevator!

  24. What they are not telling you is what happens to the human body once out of microgravity and into deep space.

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