Tag Archives: Time

The Cosmic Calendar and the Cosmic Perspective

Posted on January 22, 2018 by stellarastronomy1995

Shrinking the history of the Universe down to fit into the time frame of one Earth year may not seem all too impressive at first. The realization however that, fit into a calendar year, each month is representative of about one billion years, while each day is 40 million years, presents one with the inescapable … Continue reading The Cosmic Calendar and the Cosmic Perspective → Continue reading →

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Precession: How Will Life on Earth Differ With Summer in January?

Posted on January 21, 2018 by Michael Natinsky

Precession is often referred to as “orbital variation.” An easy demonstration of precession is a top spinning. As a top spins on a surface, it moves around in a circular or elliptical path. But while it moves, the direction of its tilt is also changing. The same is true for planets as they orbit stars. … Continue reading Precession: How Will Life on Earth Differ With Summer in January? → Continue reading →

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How Fast Light Travels

Posted on January 21, 2018 by dempsy

We all know light travels fast, but do you know how fast it can be? The answer 299,792 kilometers in a second. The fact is, if you can travel as fast as light, you could go around the Earth seven and a half times in just one second. Theoretically, there is nothing runs faster than … Continue reading How Fast Light Travels → Continue reading →

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Dating Everyday Objects?

Posted on March 30, 2017 by ritam216

Radiometric dating is generally used for items in our solar system that exponentially older than humans. The composition of an object is evaluated for its ratio of parent and daughter isotopes. This ratio will provide a good estimate of an object’s age if we know the corresponding half-life. But can we use this same process […] Continue reading →

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Blog 1 – Cosmic Calendar

Posted on February 15, 2017 by johnjohnb4

For my first blog, I wanted to discuss the cosmic calendar.  From the picture below, you can see, from a human bias, the five most important events in universal history, symbolized in the julian calendar: the big bang in january, the formation of the milky way in march, the development of the solar system in […] Continue reading →

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Hubble’s Law and a Window to the Past

Posted on February 14, 2017 by joneastr

Hubble’s Law is one of the most fundamental observations in cosmology – that objects far off in space are almost … More Continue reading →

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Blog #3

Posted on February 14, 2017 by niharikadar

The Earth is around 4.5 billion years old. The first half of the Earth’s existence (prior to the Great Oxidation Event which essentially introduced free oxygen (dioxygen) into the Earth’s atmosphere) was characterized by the presence of certain types of bacteria, although evidence of this existence on our planet is limited. However, last year, researchers … Continue reading Blog #3 Continue reading →

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The Key Effortless Self-improvement

Posted on February 14, 2017 by ritam216

We’d all probably like to believe that astrology is real so we can identify with the redeeming qualities of our own sign and to hold fast to promising horoscopes. However, zodiac signs are not only false because of their vagueness, which allows each sign to at least partially relate to every human, but also due to […] Continue reading →

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The Speed of Light

Posted on February 13, 2017 by Haley's Comet

Growing up I had frequently heard the phrase “Faster than the speed of light” but until now, I had no idea what that truly meant. Prior to this class, all I knew was that faster than the speed of light meant FAST, and that all human travel was slow in comparison. In fact, according to… Continue reading The Speed of Light Continue reading →

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Light Cones

Posted on February 13, 2017 by Natalie

We all know that light travels really fast. It can appear instantaneous to us on earth, but when you look out … More Continue reading →

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