about 4 billion years ago mars would have had enough water to cover its
entire surface in a liquid layer about 140 meters deep but it is more likely
that the liquid would have pooled to form an ocean occupying almost half of
mars northern hemisphere and in some regions reaching depths greater than 1.6 kilometers
the first life forms were single-celled organisms similar to bacteria these first life forms were
of course very basic and this then allowed for the evolution of more complex life forms
life did happen on earth
but what if it flickers out from our planet eventually history suggests there will be some
some jewish event the alternative is to become a space bearing civilization and a multi-planet
species which i hope you would agree that is the right way to go five four three two one
the nail-biting terror comes to an end and joy
fills the world as nasa's curiosity rover successfully landed on mars this evening
since its landing curiosity has explored the gale crater on mars and made several discoveries
the curiosity rover found that ancient mars had the right chemistry to support living microbes
curiosity found sulphur nitrogen oxygen phosphorus and carbon key ingredients necessary for life
in the powder sample drilled from the mudstone in yellow knife bay now almost 10 years after
landing on the red planet curiosity has revealed evidence of past life on mars
while traveling on the surface of mars the curiosity rover discovered evidence
of the past existence of rivers lakes and groundwater on the red planet
the nasa rover detected on mount sharp which is about five kilometers high clay minerals
formed from lakes and streams that were flowing through the central gale crater summit of mars
but those streams dried up turning into sand dunes and sediments
according to nasa the region has shifted from being rich in mud to one full of salty mineral
sulphate which could indicate a major shift in the martian climate occurred billions of years ago
the rover will soon begin digging the last rock sample collected in the transitional zone in the
hope of learning more about the change in the mineral composition of the rocks in that region
we no longer see the lake sediments that we saw years ago on mount sharp instead we see plenty
of evidence of drier climates such as dry sand dunes that were sometimes swirled by streams
elon musk is a billionaire an inventor a scientist a designer and one of the world's most
innovative minds one option if we want to become a multi-planet civilization
and that's that's mars we could conceivably go to our moon and i still have nothing against going
to the moon but i think it's it's challenging to create a become multi-planetary moon because
it's it's much smaller than than a planet it doesn't have any atmosphere it's not as resource
rich as mars it's got a 28-day day whereas the tomorrow's day is 24 and a half hours and in
general mars is far better suited to ultimately scale up to be a self-sustaining civilization
the area that curiosity rover is currently exploring also includes hills that may have formed
in dry conditions and feature large windswept sand dunes that are likely to solidify into rock over
the time rover according to nasa also found evidence of sediments that were carried by water
currents through sand dunes these deposits now appear as stacked layers of scaly looking rocks
organic matter has been found on mars by nasa's curiosity and perseverance rovers it may not
be a conclusive sign of life since it could have been created by non-biological chemistry
curiosity drilled samples from 3.5 billion year old mudstone rocks in the yellow knife
bay formation of gale crater the site of an ancient lake on mars organic carbon was part
of this material and got incorporated into the mudstone besides liquid water and organic carbon
gale crater had other conditions conducive to life such as chemical energy sources low acidity
and other elements essential for biology such as oxygen nitrogen and sulphur
we know that there's ice on mars but the search for liquid water continues this latest discovery
backs up the idea that flowing water was once an extensive part of the martian landscape
and it may have brought life with it here's hoping humans become a multi-planetary species
what do you guys have to say drop in your comments to let us know
and don't forget to subscribe to lab 360.
you