Is There Life Beyond Earth's Solar System

is there life beyond earth the solar system.

The spectrum of electromagnetic radiation, What does it consist of?

The electromagnetic radiation spectrum consist of radiation microwaves, infrared visible

ultraviolet, X ray and gamma ray radiation, microwaves and infrared

radiation are things like radio stations, things like our phones,

tV and any kind of radio waves that can go

through humans buildings and that that aren't harmful.

Radio waves are also emitted by stars and gases in

space. Microwaves, microwaves are things like like a microwave that

heat up, that heats up your food or to cook

your popcorn, but it's also used by astronomers to learn

about the structure of nearby Galaxies.

Infrared infrared are things like night vision goggles that pick

up the infrared light that is emitted from your skin

and objects with heat in french also helps map the

dust. What is meant by the dust is irregularly shaped

grains of carbon or silicate, measuring a fraction of microns

across which are found between stars.

As you can see here, radio waves are there waves

are very long and stretched out, showing that it's harmless.

But as you move through microwaves, infrared visible light, X

ray and gamma, they've become very penetrating and become very

harmful visible light, ultraviolet X ray and gamma ray, visible

light, visible light are things like fireflies, light bugs and

anything that your eyes can detect during the night.

Our eyes can see stars in the sky and this

is why all stars emit visible light.

Ultraviolet ultraviolet is emitted by the Sun.

This is the reason people 10 or burn it is

hot objects in space which UV radiation as well, X

ray, X rays.

We've all come across X rays before.

These are things uh dentist doctors or maybe even in

airport security X rays are used to see through things.

I used to see through things or in things.

But it's not really used on earth here.

After these purposes.

X rays are hot hot gases in the universe.

Also emit X rays.

Gamma ray gamma ray is a penetrating form arising from

the radioactive decay of atomic nuclear.

They gamma ray produced the hottest and most energetic objects

in the universe, such as neutron neutron stars include poll

pulsars, supernova explosions in any end up regions around the

black hole mission and absorption.

Yeah. And this is a line spectrum of emission and

absorption and also continuous, continuous is probably the easiest to

understand as it just goes right through and you don't

lose energy or your energy level doesn't go to lower

or higher.

It goes right through.

But if you go if absorb but the absorption, the

absorption spectra on the other hand, takes in atoms, It

absorbs atoms when the hot black.

When the hot black body emits light energy or anything

like that.

The hydrogen gas takes energy from the atoms take energy

from what is being emitted.

This is why this little black lines here show that

there is the energy level has gone down, down, down

and down.

But on a mission, on a mission is the opposite

of absorption.

A mission a mission emits light.

It gives light, which means it's energy level is going

up as you can see here.

These are the lines that are showing and yeah, how

are emission lines and absorption lines are produced when electrons

move from a higher energy level to a level one

photons are emitted.

An admission and an emission line can be seen in

the spectrum, absorption lines are seen when electrons absorb photons

and moved to a higher energy level.

The lines of on the atomic spectrum relate to electronic

transmissions between the energy levels.

If the electron drops and energy level of photon is

released, resulting in the emission line.

And if the electron absorbs a photon and rises in

energy level, an absorption line is a is observed on

the spectrum specter spectroscopy and how planets are, can be

identified. Spectroscopy.

The science of spectroscopy is quite sophisticated, sophisticated from spectral

lines, astronomers can determine not only the element, but the

temperature and density of the element in the star.

The spectral line also can tell us about any magnetic

field of the star.

The width of the line can tell us how fast

the material is moving through the refraction of light by

prism or through its diffraction by a diffraction grating and

the lights from a source is spread out into its

different visual wavelengths from red to blue because each element

immense or absorbs light only at a specific wavelength The

chemical composition of stars can be determined.

How can planets be identified the dot, the do pla.

The Doppler technique is a good method for discovering exoplanets.

It uses the Doppler effect to analyze the motion and

properties of the star and planet, both the planet and

star orbiting around a common center of mass.

As you can see in this diagram, there is the

center of mass, that little gray dot and the planet

is the little blue dot.

But the star can yeah, but the star can be

detected by its motion by the red and blue lines.

As you can see the red lines, wavelengths mean that

the star is moving away away from the planet and

if it's moving towards it's moving.

It's a blue wave length.

Mhm conditions for life beyond earth, the solar system habitable

zones. What is the habitable zone?

The standard definition is that is that the habitable zone

is a range of distances from a star in which

liquid water could be found.

Liquid water is a necessity is is necessary for all

life on earth.

The notion of a habitable zone is founded by the

assumption that life is beyond earth that beyond earth would

require it as well.

This is fairly cautious because this is a and definition

because the planet's sores surface temperature is affected by a

variety of lemon of elements including its atmosphere, glasshouse gases

and reflectivity around 40 planets have been discovered that are

roughly earth sized and orbit within the same within the

habitable zones of their stars, including the nearest X extrasolar

planet, pro asthma, center Century B and three planets in

the tres pit trap pissed one system, as you can

see here in this diagram, the green highlighted part is

the habitable zones.

The red part is when it's too hot and the

cold part is when it's too cold, even though the

trappist one is found to be in the too cold

air like area.

It does, it is within the habitable zone of their

um like orbits within the habitable zone of their stars.

A planet in the habitable zone when a star is

too young, may substantial, quickly, substantial, quickly become too hot.

Other planets could become too cold for liquid water to

exist when there starts to young, but might warm up

enough to have liquid water on their surface leader as

their star increases as you can see here increases in

age. But as you can see here, these are planets

here um these are all the planets that are found

to be habitable habit, had habitable.

How can planets be identified temperature and energy astronomers have

also utilized climate stimulations Simulations to conclude that additional extrasolar

planets such as copper 452 B could have surface water

given the correct climate conditions.

Internal energy sources like radioactive decay and tidal heating can

also heat heat the planet surface to the point where

when water melts.

These energy sources can also keep underground water reserves afloat,

allowing planets to harbor life even though it's beyond it's

beyond its star's habitable zone.

For example, her earth has a very vast underground by

atmosphere. I'll buy it.

It also virtually entirely, it's virtually entirely made up of

basic species that can thrive in low oxygen situations.

Nouveau pa jupiter's moon has a liquid water ocean 10

tens of kilometers beneath its surface that could support life

you've read about.

You've roper is one is home to one of the

largest oceans in the solar system.

All the most of its water lies underneath the surface

of this world heating it caused by the tidal forces

of jupiter keeps large proportions of these ocean liquids increasing

changes the chances of life evolving them.

I just think that Europa's ice shell is 15 to

25 kilometers thick of floating the ocean 60 to 150

kilometers deep.

So while Europa is 1/4 the diameter of earth, it's

ocean may contain twice as much water as all of

earth is as all ifs ocean combined, life on other

planets. Places where life may be hiding in the solar

system. These are these are top 10 planets where people

have found that earth may be hiding this.

This is the list origins of life in the universe.

The origins of life in the universe as having come

from organic molecules in space, organic molecules are known to

exist in star forming regions and in proto planetary discs

where planets are formed.

It was a natural consequence that astronomers considered a relationship

between organic molecules in space and the original original of

life. Some of these molecules were building blocks of proto

cellular, good structures which is self absorbed, self assemble from

M. M.

Fulfill IQ compounds into vessels, vessels, vessels and other structures

such as my my cells and multi layers.

Researchers from the University of Sherbrooke in Quebec Canada have

just produced more evidence that life could have begun in

space. The research team assured that some organic molecules in

the form of building blocks in life could have developed

icy films subject subjected to radiation within a vacuum, opening

the possibility that life on this planet might actually be

X extraterrestrial in origin.

There is no proof that life began in space, but

the film does provide evidence that building blocks of life

may come from space.

Yeah, originating on earth Here, I've got a small video

explaining elements and compounds and how on Earth

Is There Life Beyond Earth's Solar System

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