Article waves are from an advanced extraterrestrial


in space?

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            Radio bursts from space are not rare by any means;
however, what is rare is FRB 121102 which is the only radio burst known to
repeat. Plenty of people like to theorize that these radio waves are from an
advanced extraterrestrial civilization. While this hypothesis hasn’t been ruled
out entirely, there are other ideas that are much more feasible.

of the more probable explanations is that it is the cause of an incredibly
strong magnetic field caused by a black hole in a dwarf galaxy approximately
three billion light years away. However, researchers aren’t entirely confident
that such a massive black hole would exist in a dwarf galaxy. Another premise
is that these bursts are coming from a very powerful nebula. The latest
findings about the burst’s source support this theory of a rotating, highly magnetized
neutron star. The burst’s sources have ranged from thirty milliseconds to nine
milliseconds, which would suggest that its source is the right size for a
neutron star (about six miles across). Despite this being the more popular
explanation, what causes some researchers to hesitate is that it would be a
brighter than the Crab nebula (which is already insanely bright).

There is an estimated ten thousand quick
radio bursts are happening per day in areas that we can record with telescopes.
FRB 121102 is the first one that has given repeated bursts. Researchers hope to
soon have more information about the radio bursts and to be able to identify
its source.




            The article is intriguing because
our telescopes can only capture so much information and this is the first
repeated burst we have found. This poses the question are there any other
repeating waves which we have not been able to find (probably). Personally, the
theory of it coming from a powerful nebula appeals to me the most because it
seems to have the most support behind it thus far. Additionally, I think if we
can find the nebula that it would be beyond cool if we could see to progression
in the birth of a star which is starting off a million times brighter than the
crab nebula. I understand that it wouldn’t form for many years; but you can’t
deny the uniqueness of the star’s story.



Giant bubbles observed on red giant star’s




            For the first time astronomers have directly perceived
patterns on a star outside of our own solar system. Using a powerful telescope
astronomers have seen cell/granulation patterns (also known as photospheres)
that make up the surface of the star p1 Gruis. p1
Gruis is a part of the constellation of Grus (the Crane) which is approximately
530 light-years from Earth. This star has a diameter about 350 times larger,
about the same density, several thousand times brighter than our Sun. One of
these photospheres alone would be bigger than the distance from out Sun to

 p1 Gruis happens to
be a cool red giant, this means that this star is coming towards the end of its
life. Most cool red giants that we are able to detect are hidden by dust obstructing
observations; however, even though there is dust present around p1
Gruis it has not hindered new infrared observations.

now, we have not been able to see and observe the surface of a red giant in
such detail. This phase only last several thousand years (compared to the
several billion years a star lives for), so it is important we find out what we
can in this phase. With limited time left in this star’s life some ma think
about the star’s end and how some stars end in an intense supernova explosions.
In reality this star will slowly release layers of energy which will lead to a
planetary nebula.



            It is intriguing to learn about a star being more easily
seen than its counterparts. It is also interesting to know that we are trying to
grasp as much information as possible before this phase of the star is over. Also
that even though it is the same density as our Sun it is bigger, brighter, and older.
I learned that often red giants are too clouded with dust to see clearly, as
well as the existence of cell patterns on a star’s surface.  






New Observations of the “Most
Mysterious Star in the Galaxy”




            KIC 8462852 is a star much like our
Sun and seems extraordinarily ordinary, a bit bigger and a little younger. Due
to odd dips in its brightness (which are random and reoccurring), some have referred
to it as the “alien megastructure star”. However, recent findings have proven
this to be false. With a look at KIC 8462852 in 2016, the star presented a lot
of strange behavior; dips of brightness that could be up to 22% for days on end,
and there was not pattern at all to the dips. New presented information poses
that the star has been slowly fading over the last century. Despite these dips
in brightness, the star showed no fluctuation in infrared radiation or any
change in spectral lines. The original theory was that something had kicked up
large amounts of dust (perhaps a swarm of comets) into orbit around the star. Or
perhaps the “star itself could be misbehaving”. Through further observations
more dips were recorded with different levels of light over a period of a few
weeks. Data at visible, infrared, and radio wavelengths were recorded along
with measurements of polarized light. Blue light was slightly more obscured
that redder light, meaning that the dimming is caused by a material that isn’t
solid. Despite all of this everything suggests that dust is to blame. For some
reason which is still being searched for, dust has been kicked up around the
star and that is what is making the star seem like its dimming.




            I am not entirely sure what to type here because overall I
am annoyed that it took three pages for this article to tell me that sometimes
a star gets dimmer because dust floats between the star and the telescope. I
feel annoyed and upset… it was literally just dust.









NASA Mourns the Passing of Astronaut
John Young



            Astronaut John Young died on January 5, 2018 at the age
of 87 from complications of pneumonia. “NASA and the world has lost a great
pioneer” says Robert Lightfoot. This is a man who has assisted in making leaps
and bounds in our understanding of space, his career spanned three generations.
His NASA career extend from 1962 to 2004, during this time he was a part of six
groundbreaking missions through three different programs. Young went from
making model airplanes as a child to getting an aeronautics engineering degree,
and joining the Navy and flying fighter planes for four years, to making a
legendary career at NASA. In 1965 he made his first flight as an astronaut of
the Gemini 3 flight. He also had commanded the Gemini 10 mission in 1966. Later,
in 1969, Young worked as command module pilot on Apollo 10 and flew the entire
way to the moon, this was a sort of dress rehearsal for Apollo 11. In 1972 returned
to the Moon as he was commander of Apollo 16 with Ken Mattingly and Charlie
Duke. Both Young and Duke got to explore the lunar highlands in the rover, and
the mission brought over 200 pounds of Moon rocks. He also commanded Space Shuttle
Columbia (the first time a piloted craft was tested in space without unpiloted
orbital flights); this lead to over 130 flight tests with an about 55 hour
mission. He was also apart of several more missions. Young recorded an impressive
835 hours in space. He was named the chief of the Astronaut Office from
1978-1987, and later inducted into the National Aviation. Being a man who had received
more than 80 major awards and honors, the world has truly lost a legend and a gift.



            It is devastating to learn that we have lost a man who
was so pivotal in gathering information in which helped us have a better
understanding of “man’s last frontier”. It is also insanely impressive how many
missions this man was a part of, he was truly devoted to knowledge, science,
and what he loved.


Alyssa’s thought at 10:30

            Astronaut what your country can do for you, but what you
can do for your country. (Look, I know it’s really dumb, but still)


SOFIA Observations Help Unravel Mysteries of the Birth of Colossal Suns



            Astronomers are using the Stratospheric
Observatory for Infrared Astronomy (SOFIA) is being used to observe star-forming
regions within our galaxy. They are trying to observe these areas to understand
the process and environments that were vital to create some of the largest
stars. There are eight observed massive, young stars within the Milky Way galaxy,
SOFIA has allowed these areas to be observed as warm, dusty areas that are
being heated by these newly forming stars. SOFIA is the only observatory that
can measure a star’s wavelengths, sensitivities, and resolution required to see
into these thick dust clouds which stars are born. Astronomers are studying a
great amount of newborn stars (all at different stages in different
environments to hopefully gain some understanding to the process of how these gigantic
stars are made. There isn’t a plethora of information quite yet because
astronomers are still observing much of it; however, there hopeful to grasp a
greater understanding of newly forming stars.



            It is intriguing how there is so
much we don’t know and how much we are learning from observation alone. Many observations
are dealing with the process of a star’s life and death; both of which I have
read about for this assignment. Which made it very interesting to get a bit
from opposite ends of the life of a star. There isn’t an abundance of
information on all this yet, that’s part of what makes everything so
intriguing, so there isn’t a whole lot I can think of to say about it.