“What in the World is an ‘Exoplanet?”. Write 10 – 15 sentence summary of this article. https://www.nasa.gov/feature/jpl/what-in-the-world-is-an-exoplanet

Learning Goal: I’m working on a physics writing question and need an explanation and answer to help me learn.

“What in the World is an ‘Exoplanet?”. Write 10 – 15 sentence summary of this article.
https://www.nasa.gov/feature/jpl/what-in-the-world-is-an-exoplanet

2.“’Exoplanets’ and the Search for Habitable Worlds”. Write 10 – 15 sentence summary of this article.

https://www.jpl.nasa.gov/edu/news/2015/8/17/bringing-earths-cousin-into-the-classroom/

List the two main groups of planets, and the names of the planets that belong to each group. Which group of planets have higher average mass and which group have average density?
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What is an Exoplanet and describe the technique Kepler planet finding mission uses to find exoplanets? ____________________
Name two types of objects that orbit the Sun but are not classified as planets.
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Why do the tails of comets always point away from the sun? __________________________________________________________________
An element has a half-life of 120 years. A given sample originally contained 1000 grams of this element. After 480 years have passed, how many grams of this element remain in the sample? ______________________
According to radioactive dating of meteorites, what is the approximate age of the solar system? _____________________________
The most accepted theory for the formation of the solar system is called the ______________________ theory. Give a short description of this theory. __________________________________________________________________
Why are the oldest Earth rocks younger than the oldest moon rocks? __________________________________________________________________
Describe and differentiate Meteoroids, Meteors and Meteorites. ___________
In our solar system, which planet has the greatest uncompressed density, and what does that tell us about its composition? __________________________________________________________________
What is the difference between condensation and accretion? __________________________________________________________________
After the planets formed, the remnants of the protoplanetary nebula disappeared. Give four reasons for this disappearance.
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Name and describe three possible ways to detect an extrasolar planet.
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“Asteroids, Comets, Meteorites”. Write 10 – 15 sentence summary of this article.
https://www.jpl.nasa.gov/asteroid-watch