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Tag Archives: astro201
Introduction
Hey here, I am Kewei Xu. I am an Electrical Engineering Major with a Computer Science Minor. I I sometimes forget to do assignments like this one. Did you read the previous sentence as “I sometimes” or “I I sometimes”?
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Planets bigger than Earth beyond Pluto?
Could it be possible that planets larger than the size of Earth lie beyond Pluto? According to researchers, the behavior of far-out celestial bodies far from the sun (such as Sedna and Pluto), seems to suggest so. Such bodies, called “extreme trans-Neptunian objects” (or ETNO’s), should generally have an orbital distance of roughly 150 AU and […]
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Light Travel Time and Observing Extraterrestrial Life
http://en.wikipedia.org/wiki/Hubble_Space_Telescope#mediaviewer/File:NASA-HS201427a-HubbleUltraDeepField2014-20140603.jpg A topic that has really intrigued me is the speed of light and the time it takes for light to travel. The above image was taken by the Hubble Space telescope of galaxies billions of light years away. Some of these galaxies even extend back in time to only a few hundred million years of […]
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Posted in Aliens, Light, Observables
Tagged Andromeda, astro201, blog1, extraterrestrial
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The Cosmic Calendar
The universe is a staggering 14 billion years old – most of us can’t comprehend that length of time, so to put things into perspective, one can fit the entire history of the universe into one calendar year. With this “cosmic calendar,” the universe’s lifetime can be more easily understood by you and me. The… Continue reading The Cosmic Calendar
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Posted in Class, Historical
Tagged astro201, blog1, cosmiccalendar
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Hubble revisit the “Pillars of Creation”
Hubble has captured a new visible-light image of the famous “Pillars of Creation.” after nearly 20 years later.
Photo:left: NASA/ESA/STScI/J. Hester and P. Scowen (Arizona State University); right: NASA/ESA/The Hubble Heritage Team (STScI/A… Continue reading
Hubble revisit the “Pillars of Creation”
Hubble has captured a new visible-light image of the famous “Pillars of Creation.” after nearly 20 years later.
Photo:left: NASA/ESA/STScI/J. Hester and P. Scowen (Arizona State University); right: NASA/ESA/The Hubble Heritage Team (STScI… Continue reading
Victory
This is a picture of me drinking chocolate milk at the top of Riley Peak in Conifer, Colorado. The picture was taken over spring break this past year. My friends and I had visited the original Chipotle the day before and I had bought two chocolate milk juice boxes and only drank one at lunch. […]
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Astronomy 201 First Post!
This picture is my favourite I’ve ever taken. It was taken on a walk back from class one day last semester. I remember being really tired and overwhelmed with classes, then I looked up at the sky and saw how beautiful it was. My mood turned around without warning as I snapped a picture and […]
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Stars: Fact or Fiction?
What even are stars? Massive balls of gas suspended unbelievable amounts of distance away? Fireflies that are really far away? Or perhaps the spirits of my ancestors? WHO KNOWS.
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