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I'm some things happen in -- and has a lot of science is excited that inter galactic collision.
Making this market a planet Jupiter this is Jupiter right back here that -- way up there that's the impact point this little circle over here that's -- that's on planet earth.
That impact point was about the size of planet earth.
Because Jupiter's this enormous place it's 318.
Side -- -- the size of planet earth.
-- shifts they say astronomers aren't exactly what caused the impact and aren't sure about that what an amateur star -- are out of Australia.
Call the folks have been NASA said check this out so we are today former astronaut Fox's contributor John Jones -- this morning morning Tom.
I don't Tom also wrote the book plant ecology OK so this giant bruise hits Jupiter what causes it.
At Jupiter was struck by a fragment of a -- most likely or perhaps a large asteroid.
This is fifteen years after the comet Shoemaker Levy nine broke up and struck Jupiter and exactly the same way.
And it just emphasizes the fact that earth than the other planets orbit and that cosmic shooting gallery.
-- is the biggest planet so it gets struck more often and we're able to see that evidence in this -- this is space Barbary and it's junkie and it's -- it's asteroids.
It could that happen to us.
Certainly -- the asteroid belt just inside of Jupiter.
Produces thousands of objects that flowed into the spaces between Venus earth and Mars we get hit all the time by small objects as -- that seen in the past six months.
And eventually will be struck again and so one of the tremendous.
Fundamental reasons to go on -- basis to learn how to prevent.
These objects from striking us in the future so -- get hit again we're just on and on borrowed time our top -- today it's kind of what kind of lucky.
Well over the long run we are certain to be hit again and we could go the way of the dinosaur is very easily if we don't have this technology.
Of spaceflight now you're odds on it.
Lifetime basis of dying in an asteroid strike are about the same as dying in a plane crash so not too much to worry about but it is a real hazard and I feel better.
Back up -- much.
OK another topic now let's face talks about to happen and this is critical two days ago carbon dioxide apparently levels got too -- -- called off.
I tell us about were about to see.
We'll spacewalk number four today for the endeavor crew Tom marsh -- Chris Cassidy going outside to swap out.
The big batteries -- the size of a dishwasher.
From the solar panels on the 2000.
But a couple of days ago and I did the last spacewalk capacities carbon dioxide levels rose in the -- -- how to curtail the spacewalk so today.
They're gonna ask the spacewalkers to go a little bit slow at first so that.
Carbon dioxide removal canister in their backpack and keep up with their workload -- -- sounds so dangerous John I have we had a case before where they were actually outer space walk in the carbon dioxide levels got so high that they had to cancel it called off.
Yes that is happened before and -- were general -- canister the recycling canister that they use gets baked out inside the station they put it back in the -- free space walk.
And sometimes there -- a little slow to operate or to be efficient.
So they have a close watch on the CO2 levels in the column back in -- problem occurs again about an eight hour spacewalk got a long time to be out there but they need to do it right to -- to repair the batters to make sure they have enough power.
Sure it's a planned maintenance this is the first time they had to change out these big batteries I helped test them back in the late ninety's under water back in Houston.
And over time all of the batteries on the force solar panel arrays will get change out.
-- you see our program where Yorktown.
Yes they -- -- -- see yourself right now march on the big strain.
And Tom tell us what we're looking at right now because I believe this is a live picture from space from NASA.
I -- -- -- from earlier.
Okay most likely we're seeing inside the airlock right there on the space station as the crew gets ready to close -- or they should be going outside and just the next five or ten minutes.
While this is from the other day to Tom thank you very much by the way.
We did some fox -- -- found most people they wanna go back to space they wanna go back to the moon.
Two of -- a majority of people we talked himself Tom thank you what to watch an effort today and and by the way Megan had a very keen observation.
All right bill listen this is my observation you know how you're always saying you wanna go out in outer space now I spent -- chicken yeah I just found an error.
And here's why.
Well let's see -- yeah.
What you think should definitely your community that's Chris capacity on the left he's 39 hometown New York -- -- her three kids unfortunately just kitten.
He euthanasia for ten years and that's Tom marsh -- on the right he's married with one daughter he was an ER doc and even NASA flight surgeon.
Age 48 -- -- states -- North Carolina I'm just saying.
These guys before they got married -- about the had a nice wrapped Lira beautiful -- -- a look at ended.
You're a married woman that I don't -- my -- not to -- and you know for the wise just say to those -- I.
-- -- -- -- -- -- -- -- -- -- -- -- -- I see -- -- there at the.
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