Priscilla A.

Nadao

BSED-Science 1D

Astronomy

1. Why does has the moon interior cooled more than the Earth’s?
 Early scientists they thought that the dark stretches of the moon might be oceans, and
wherein it is named of a features mare wherein it is called from Latin for "seas". So, I
think it is cooled more than the earth’s atmosphere because it composed a an ocean. So
in earth it is field that will create through a convective motions within the liquid portion in
a core wherein it has a different motions that can be expressed such as making it less
dense rises, hot iron rises, clouds, and other weather. So, in the moon, the whole body
will cooled than the earth because it is smaller so the core also cooled, and perhaps it
will froze.

2. Why will an astronaut’s footprint on the moon last long?

 The astronaut footprint will last long in the moon because it has not atmosphere.
It will exist of the space of vacuum the where there are no gentle gusts to swing
up the dust and to erase the footprints. Unlike on Earth, there is no erosion because
it has no atmosphere wherein it has no wind, no water, and no wind and that is the
reason why it can’t be remove the marks including the footprints .

3. What evidence do we see from the terrestrial planets that supports the theory of the
origin of the solar system?
 Since, The terrestrial planet including the Mercury, Venus, Earth, and Mars it will
support our solar system because it has a compact, a rocky surface and these four
planets are the four innermost planet on our solar system. So there is now an evidence
that demonstrate the existence of the terrestrial planet that will support our solar
system that is the planets orbiting the star other than the sun. this evidence are based on
the kepler’s space telescope.

4. Why some Astronomers think that Pluto should be considered a planet? Do you agree?
 Since, Pluto is a dwarf planet that travel around the sun or orbit the sun and it is smaller
than earth’s moon so in my own perspective we should not considered this as a planet
because since it is a dwarf planet so it should be that category will be the Pluto planet.
And also since it is a high toxic carbon so therefore it is a dangerous and also since it is
not a planet so we should not be considered this as a planet.
5. If Jupiter were moved closer to the sun, what do you think would happen to it?
 Since, the Jupiter is the largest planet in our solar system so if it moved closer to the sun
it will be very dangerous to us and extremely it can kills us because of the gravitational
pull of the Jupiter would alter earth’s orbit and it will the earth the uninhabitable planet
and it will emit it from our solar system.

6. Why is hydroelectric power generation an indirect form of solar power?

 In my own interpretation hydroelectric power it will be an indirect form of solar system
the water is an indirect to custom of solar energy thus there is a process which is the
indirect process wherein the water power or the sun will give an temperature of the
water and it will disperse to formed a cloud and it can recovered when it is rain and it
will produce a hydroelectric power.

7. Would it be easier to measure a star’s parallax from Pluto? Why?

 I think, since the parallax is a limitation to find the distance and it can also measure the
objects that are near in space so I think, since Pluto is a large from the earth so I think it
is hard to measure using the parallax from Pluto because as I have said there will be an
limitation to measure or find the distance and it can be measure when the object is
near.

8. How could we measure the mass of the Milky Way using a distant orbiting globular
cluster?
 Since, a Milky Way is a galaxy so it can be measured a distance using the globular cluster
through orbiting, comparing the brightness, and the colors of a stars between the local
stars. The globular cluster thought that the our sun is lie near or at the center of the
Milky Way galaxy. Thus it measured by measuring the orbital velocities of stars and
interstellar matter.

9. Why do most star, including our sun contain more helium than the 24 th formed during
the Big Bang?
 During the Big Bang theory it will produce only the helium and hydrogen because of the
universe electron were moving too firm to become a atom but they are still an
hydrogen. So because of that, the universe had cooled enough for these hydrogen
nuclei to ferocity heavier element without being ragged apart

10. How would a spectrum help you learn what the atmosphere of Venus is made of?
 An spectrum it is an range color wherein we can see a different types of colors just like
the rainbow it manifested the color of rainbows and spectrum can help us to learn what
 the atmosphere of Venus is made of through the light and infrared energy to detect and
measure against the known level of gasses and the radiation so that we can positively
identify the made up atmosphere on Venus and it is extremely composed a carbon
dioxide and nitrogen.

11. It is surprising that a pulsar is not seen is not seen in every supernova remnant? Why?
 Pulsar’s is not actually a star nor they are not living stars but they are the object to
called the neutron star wherein it is form a star massive and it is collapsed on its self.
Although they are inside the supernova remnant but as the time pass by they have fled
away from the location that they were formed and they are no longer inside the nebula.

12. If added more water or carbon dioxide to our atmosphere, how would you it alters the
loss of heat from our planet? Would you expect the earth to get warmer or colder?
Why?
 When the carbon dioxide added more water then, other Green House gasses heat up
the planet and the temperature will turn it higher. It will change the heat of our planet it
will not allow the hot rays of the sun to escape from the atmosphere. Therefore, the
temperature of the earth will increase and cause the planet to become a warmer.

13. What would the Milky Way look like in the night sky to an observer on a planet at the
very edge of the galaxy? What would it look like to an observer at the galactic nucleus?
 The Milky Way look like in the night sky, it seems as a Milky band of light in the sky or it
looks like the band of long-winded/diffuse light arc across throughout the darkness sky.
We can see this when we look in the dark night. So the observer of an galactic nucleus
they look the Milky Way galaxy they can see it that it really cloud of dust where they can
form a new stars and that’s how they looks the Milky Way galaxy at night.

14. Some astronomers have suggested that cooled white dwarfs are made of diamond?
Why might it be impractical to mine them?
 The observations of a scientist from the constellation cooled white dwarfs are made of
the helium, carbon, and oxygen nuclei which is highly energetic electrons. Thus the
cooled white dwarfs because technically it is not made of crystal. It might be an
impractical to them because I think it is not an applicable in a real life setting or in our
daily lives.

15. Suppose the sun were a population II star in the halo of the Milky Way, in that ways
would that make studying the Milky Way easier?
 The galaxy is massive and it lie the sun at the center then, it is formed long ago and
cloud collapsed and formed a rotating disk. So if the sun is the population II star in the
halo Milky Way they predict that there is a chance to merged this galaxy. So in what
ways to make a study the Milky Way at ease through measuring the distance and
massive star forming regions I think these are the method to study the Milky Way at
easily.