2 discussion questions Business Legal & Science

Week 9 | Discussion

For your primary post, provide a link to a current news article or science article that is related to at least one topic from Chapter 26 “Solar System” and/or Chapter 27 “Stars & Galaxies.”

In addition to the link, write a paragraph of at least 125 words describing the article and how it relates to the material from the textbook. Which concepts from the text does it mention, cover or depend on? Is the article more or less detailed on the science than the textbook?Top of Form

Topics:

The Sun

Exoplanets

Formation of black holes

Galaxies

The solar system and its formation

The Brightness and color of stars

Part 2: Respond to the classmate below:

Vernandre Whitfield

RE: Week 10 | Discussion

Top of Form

Hello Class and Professor,

The article I chose for this weeks discussion is "Five planets revealed after 20 years of observation". In the article it explains 4000 exoplanets have been discovered since the first one in 1995. Majority of them orbit their stars with short periods of revolution. To confirm the presence of a planet it is best to wait until it has made one or more revolutions around its star. It could take a few days for the the closet star to decades for the furthest away.

It took Jupiter 11 years to go around the sun. The Euler telescope is what was used to discover these planets. Most of the massive planets close to their stars are the easiest to detect relying on the current technology that is being used. Almost all planets have been discovered using two main indirect methods, 1. Radical velocities, measures the gravatational influence of a planet on its star.2.Transits, It detect the mini eclipse caused by a planet passing in front of its star.