Archives
- October 2024
- September 2024
- August 2024
- April 2024
- March 2024
- February 2024
- January 2024
- May 2023
- April 2023
- March 2023
- February 2023
- January 2023
- May 2022
- April 2022
- March 2022
- February 2022
- January 2022
- May 2021
- April 2021
- March 2021
- February 2021
- January 2021
- April 2020
- March 2020
- February 2020
- January 2020
- May 2019
- April 2019
- March 2019
- February 2019
- January 2019
- May 2018
- April 2018
- March 2018
- February 2018
- January 2018
- July 2017
- May 2017
- April 2017
- March 2017
- February 2017
- January 2017
- May 2016
- April 2016
- March 2016
- February 2016
- January 2016
- April 2015
- March 2015
- February 2015
- January 2015
- April 2014
- March 2014
- February 2014
- January 2014
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- April 2012
- March 2012
- February 2012
Currently Used Categories
Tag Cloud
- astro201
- astro2110
- astrobiology
- astronomy
- blog1
- blog2
- blog3
- blog4
- blog5
- blog6
- blog7
- blog8
- blog9
- blog10
- brahe
- Comets
- Copernicus
- earth
- Europa
- extremophiles
- galilei
- galileo
- gravity
- history
- HW2
- HW6
- jupiter
- Kepler
- life
- Mars
- me
- Moon
- NASA
- Newton
- planets
- pluto
- saturn
- Solar System
- space
- spacecraft
- technology
- telescopes
- tides
- Time
- Uncategorized
Author Archives: katiew
What is Next?
Learning about the solar system and our entire universe has made me more curious about astronomy. At the beginning of the semester, I had trouble wrapping my head around the vastness of the universe. The number of stars, planets, and galaxies is unbelievable, especially because there is still so much that we don’t know. Although […] Continue reading
SETI Institute
The existence of life outside of planet Earth is one of the greatest mysteries, but the SETI (Search for Extraterrestrial Intelligence) Institute is trying to solve it. Given our understanding about life and the vastness of the universe, it is not unreasonable to believe that there is life out there somewhere. So far, scientists have […] Continue reading
Saturn’s Rings
In the outer solar system, Jupiter, Saturn, Uranus, and Neptune all have rings, but Saturn’s are by far the largest and most spectacular. Galileo was the first to discover them in 1610, but for years they remained a mystery and much is still unknown about them. In the 1980s, the Voyager missions got a closer […] Continue reading
Halley’s Comet
Halley’s Comet is the most well known comet because it is the only short-term comet that is visible from Earth with the naked eye. Halley’s Comet was seen multiple times throughout history. The first known observation of Halley’s Comet was in 239 B.C. by Chinese astronomers. When it returned in 164 B.C. and 87 B.C. […] Continue reading
The Future of Life On Earth
The future of Earth and the future of life depends on multiple factors. Disregarding human technology and the effects of global warming, Earth’s future depends on interactions with other objects in the solar system, the increase in the Sun’s luminosity, and the rate of cooling of the Earth’s interior. For example, scientists have predicted that […] Continue reading
The Invention of the Telescope
The telescope was most likely invented in 1608 by a German eyeglass maker named Hans Lippershey, although there is some uncertainty. Another eyeglass maker from the Netherlands, named Jacob Metius, filed for a patent soon after Lippershey and a third man, named Sacharias Janssen, later claimed to be the creator. Despite these claims, Lippershey is […] Continue reading
Posted in Class, Instruments
Tagged astro201, blog4, telescope
Comments Off on The Invention of the Telescope
Tides
Many people know that tides rise and fall as a result of the Moon, but often times people are unaware that the Sun also exerts a tidal force on the Earth. Tides are caused by gravitational force, which depends on the mass of the objects pulling on each other and the distance between them. The […] Continue reading
Historical Astronomers in Context: Galileo Galilei
Galileo Galilei (February 15, 1564 – January 8, 1642) is a mathematician and astronomer most well known for supporting and publishing the heliocentric model, suggested by Copernicus. Galileo helped overturn objections to Copernicus’ model by making discoveries about motion, the imperfectness of things in the sky, and providing evidence that the stars are much farther […] Continue reading
Posted in Historical
Tagged astro201, galilei, HW6
Comments Off on Historical Astronomers in Context: Galileo Galilei
Zodiac
The Zodiac was created about 2,000 years ago as a way to track time. Each month, the sun appears to pass through 1 of 12 constellations that are each tied to a sign (In 1930, the International Astronomical Union, actually defined 13 constellations that the Sun passes through, but one does not have a sign). […] Continue reading
Size and Expansion of the Universe
I have always thought that the universe is almost unfathomably huge, but until recently I had not spent much time contemplating how humans have determined this. While reading about the topic, I came across information about the Hubble Space Telescope. Not being familiar with astronomy, I did not know much about it or its purpose. […] Continue reading