Post by Dorothy J Heydt Post by Rhino Post by Dorothy J Heydt Post by Rhino
Sat, 01 Aug 2020 18:36:51 -0700
Post by Rhino Post by Dorothy J Heydt Post by Sylvia Else Post by The Starmaker
Mars rover launched to look for signs of past life
So, they are going to send a ...helicopter to Mars.
Why a helicopter, why not just a drone with a iPhone attach to it?
Weight is a very significant issue because the air is so thin. They've
had to design this very carefully to get it to fly at all.
It is, in fact, a drone, designed so that it can (they hope) fly
in that thin stuff Mars uses for air.
I've seen video of Ingenuity. It has three rotors, one above the other,
where you'd usually expect to see the main rotor of the helicopter. I've
never seen a drone with even ONE rotor so I'm thinking it IS a
You've never seen a drone with a rotor?
Hold on, are you talking about the kind that I've seen at the computer
store? I was talking about the kind that the military uses, which are
basically a cruise missile. I've never seen one of THOSE with a rotor
except perhaps a small one on the tail end for stability....
It turns out I was mistaken about the rotors too. There are only two,
one above the other, and not three stacked on the same shaft. And there
is no tail rotor at all, as terrestrial helicopter would have. I'd only
seen a close-up still of Ingenuity and it turns out that the highest
"rotor" was actually a stationary solar panel, not a rotor. And since I
only saw a closeup and NASA called it a helicopter, I just *assumed*
there was a tail and tail-rotor. But now that I've actually seen a
picture of it flying (or rather an artist's conception of how it would
look flying!), I have seen the error of my ways.
Like a bird!
Someday maybe a solar powered 'bird', even a flock of them
exploring a new world. What might they find?
Hmmmm. On Titan, maybe? It's got plenty of atmosphere.
But Titan is so cold, no life-giving water to be found.
On Mars the entire northern hemisphere is up to 50% water ice
just a few meters below the surface where it's protected
from the thin air and from solar radiation.
Literally half of Mars potentially has an underground
hot spring environment, thought to be the source of
first life on Earth.
And just meters below the surface.
When the atmosphere thinned on Mars the water didn't
evaporate away entirely, much of it went underground.
Titan doesn't have a frozen ocean on its surface
with pack ice like on Mars.
EVIDENCE FROM HRSC MARS EXPRESS FOR A FROZEN SEA CLOSE TO MARS’ EQUATOR.
Titan doesn't have clay on the surface. How can clay exist
in the surface of Mars without...recent...water?Loading Image...
And Titan doesn't have vast fields of these
/identical sized/ spheres like on Mars.
Which only microbial activity can explain.Loading Image...
This is a stunning picture. look at the spacing.
That's not the result of random weathering.Loading Image...
And Titan doesn't have fields with razor-flat
horizons only...recent...water or ice could
create like on Mars. A very young site.Loading Image...
And old site would look like thisLoading Image...
To show that the scientific community is almost
...certain Mars has life, check out the
last astrobiology conference at the link.
Bet you can't scroll through the titles of
the papers presented in less than an hour.
It would be a shock if life is NOT on Mars
The volume of papers below make that opinion clear.