References

Dunbar, B. (2015, May 06). The Moon. Retrieved from https://www.nasa.gov/moon

Earth's Moon. (2019, January 03). Retrieved from https://solarsystem.nasa.gov/moons/earths-moon/overview/

Moon Facts 🌑 - Interesting Facts about the Moon. (2017, December 06). Retrieved from https://space-facts.com/the-moon/

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The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite. It is the fifth-largest natural satellite in the Solar System, and the largest among planetary satellites relative to the size of the planet that it orbits.  Called Luna by the Romans, Selene and Artemis by the Greeks, and many other names in other mythologies.  It is the second brightest object in the sky, after the Sun.  It is sometimes classified as a terrestrial “planet”.  

Orbit: 384,400 km from Earth

Diameter: 3476 km

Mass: 7.35e22 kg

Websites

https://space-facts.com/the-moon/

https://theplanets.org/the-moon/

https://www.space.com › 
Skywatching

By: Janelle La

Orbit: 384,400 km from Earth

Diameter: 3476 km

Mass: 7.35e22 kg

Websites

A star is specifically called a sun if it is the center of a planetary system. Our sun is about 4.603 billion years old. Its surface is about 10,000℉, but as you get closer to the boiling center, the temperature rises all the way up to 27,000,000℉. The Sun holds approximately 99.86% of the total mass in our solar system. It is about 92.96 million miles away from Earth. The Sun is much larger than Earth (over a million times larger). However, in billions of years, the Sun will eventually shrink to the size of Earth. This will happen when the Sun has finished its red giant phase, which would cause it to collapse. Although its huge mass will be retained, the volume will be similar to Earth’s. As a result, the Sun would be known as a white dwarf. As of now, the sun is halfway through its life. It has lived 4.5 billion years, and will live for about 5 billion more. 

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Diameter: 1,390,000 km

Mass: 1.989e30 kg

Temperature: 5800 K (surface) 15,600,000 K (core)

Pressure: 250 billion atmospheres

Websites
https://nineplanets.org/sol.html
https://space-facts.com/the-sun/
https://en.wikipedia.org/wiki/Sun

https://space-facts.com/the-moon/

https://theplanets.org/the-moon/

https://www.space.com › Skywatching

The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite. It is the fifth-largest natural satellite in the Solar System, and the largest among planetary satellites relative to the size of the planet that it orbits.  Called Luna by the Romans, Selene and Artemis by the Greeks, and many other names in other mythologies.  It is the second brightest object in the sky, after the Sun.  It is sometimes classified as a terrestrial “planet”.  

Orbit: 384,400 km from Earth

Diameter: 3476 km

Mass: 7.35e22 kg

Websites

The sun was born 4.6 billion years ago. As you might know our Sun which is a star and it is almost through its life. No worries are needed because the sun has enough nuclear fuel to last us another 5 billion years. Sorry to break it to you I’m pretty sure none of us would be alive in 5 billion years. After that, it will swell to become a red giant. Eventually, it will shed its outer layers, and the remaining core will collapse to become a white dwarf. Slowly, this will fade, to enter its final phase as a dim, cool theoretical object sometimes known as a black dwarf.

 

Websites:
https://solarsystem.nasa.gov/moons/earths-moon/overview/

https://space-facts.com/the-moon/

http://mentalfloss.com/article/513675/how-much-does-moon-weigh

The moon was formed 4.6 billion years ago, and it is Earth’s only natural satellite. It’s the fifth largest natural satellite in our solar system. The moon causes the rise and fall of Earth’s waves. The moon’s surface temperature can be as low as -233 ℃, and up to 123 ℃. It takes the moon approximately 27 days to orbit around the Earth. In this time, the moon orbits 384,400 kilometers. Only 12 people have walked on the moon, all being american males. When you do land on the moon, you would weigh much less due to gravitational force being directly proportional to the mass of an object.

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The moon is an astronomical body that orbits Earth and is the 5th largest moon in the solar system. It was discovered by Galileo in 1610. The moon is the only place beyond Earth, humans had set foot on. Neil Armstrong was the first person to set foot on the moon. The moon is the second brightest thing in the sky. We can only see one side of the moon at a time so they moon has different phases such as the new moon,  the full moon, and so on… Did you know that the moon travels 3,683 kilometers per hour? 

The Sun is a normal G2 star one of more than 100 billion stars in our galaxy.  The Sun is the largest object in our solar system.  The Sun is personified in many different mythologies: the Greeks called it Helios and the Romans called it Sol.  The Sun’s power is produced by nuclear fusion reactions.

Diameter: 1,390,000 km

Mass: 1.989e30 kg

Temperature: 5800 K (surface) 15,600,000 K (core)

Pressure: 250 billion atmospheres

Websites

A star is specifically called a sun if it is the center of a planetary system. Our sun is about 4.603 billion years old. Its surface is about 10,000℉, but as you get closer to the boiling center, the temperature rises all the way up to 27,000,000℉. The Sun holds approximately 99.86% of the total mass in our solar system. It is about 92.96 million miles away from Earth. The Sun is much larger than Earth (over a million times larger). However, in billions of years, the Sun will eventually shrink to the size of Earth. This will happen when the Sun has finished its red giant phase, which would cause it to collapse. Although its huge mass will be retained, the volume will be similar to Earth’s. As a result, the Sun would be known as a white dwarf. As of now, the sun is halfway through its life. It has lived 4.5 billion years, and will live for about 5 billion more. 

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Diameter: 7.35 × 10^22 kg (0.01 Earths)

Orbits: The Earth

Mass:  3,475 km

Orbit Distance: 384,400 km

Orbit Period: 27.3 days

Surface Temperature: -233 to 123 °C

Age: 4.527 Billion Years

The Moon has no atmosphere.
This means that the surface of the Moon is unprotected from cosmic rays, meteorites and solar winds, and has huge temperature variations. The lack of atmosphere means no sound can be heard on the Moon, and the sky always appears black.

During the 1950’s the USA considered detonating a nuclear bomb on the Moon.
The secret project was during the height cold war was known as “A Study of Lunar Research Flights” or “Project A119” and meant as a show of strength at a time they were lagging behind in the space race. 
              References
https://nineplanets.org/luna.html
https://theplanets.org/the-moon
https://space-facts.com/the-moon/

References

Dunbar, B. (2015, May 06). The Moon. Retrieved from https://www.nasa.gov/moon

Earth's Moon. (2019, January 03). Retrieved from https://solarsystem.nasa.gov/moons/earths-moon/overview/

Moon Facts 🌑 - Interesting Facts about the Moon. (2017, December 06). Retrieved from https://space-facts.com/the-moon/

As you may already know, there are four seasons in a year; winter, spring, summer, and fall/autumn. We have different seasons because of the constant movement of Earth’s orbit around the Sun. For example, if the Sun is facing the opposite side of the world, you’re not likely to be getting as much warmth, meaning that you are in winter, however if you are facing the sun, it would most likely be hotter than other continents, meaning you are in the summer.  Depending on the location, each season may have some special characteristics. For example, in the spring, trees and bushes begin to lose their leaves as the season changes into the next. During the summer, it can reach over 100°F in certain areas of California, Nevada, Arizona, etc. Many people consider fall/autumn to be the season that transitions summer to winter. Speaking of the winter, it will most likely snow in Idaho, Colorado, New Jersey, Missouri, and more.

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References

(n.d.). Retrieved from https://www.timeanddate.com/

(n.d.). Retrieved from https://spaceplace.nasa.gov/seasons/en/

Fun Facts About the Seasons. (n.d.). Retrieved from https://taylorsciencegeeks.weebly.com/blog/fun-facts-about-the-seasons9976751

Earth has seasons because our planet’s axis of rotation is tilted at an angle of 23.5 degrees relative to our orbital plane – the plane of Earth’s orbit around the sun.  Earth’s angle of tilt does not vary over the course of a year.  The Northern Hemisphere is oriented towards the Sun for half of the year and away from the Sun for the other half.  The same with the Southern Hemisphere.  When the Northern Hemisphere Is facing towards the Sun, that part of Earth warms and it becomes summer in that hemisphere.  When the Northern Hemisphere Is oriented away from the Sun, the hemisphere cools. It’s now winter.  And vice versa for the Southern Hemisphere (You get spring and fall in the middle.)

Basically :

Northern Hemisphere winter - Southern Hemisphere summer

Southern Hemisphere winter - Northern Hemisphere summer

 

Earth’s obliquity ranges between 21.4 and 24.4 degrees.  But currently Earth’s obliquity is decreasing.  An increase of obliquity on Earth would mean more moderate seasons (cooler summers and warmer winters),

While a decrease in obliquity would mean extreme seasons (warmer summers and colder winters).     Other planets in our solar system also tilt at a certain degree (Uranus - 97 degrees = extreme seasons, Venus - 177.3 degrees = not much difference in seasons.).  To sum it up, these are the three reasons why Earth has seasons :

 

Websites

References

In Depth | Sun – Solar System Exploration: NASA Science. (2019, February 20). Retrieved from https://solarsystem.nasa.gov/solar-system/sun/in-depth/

Sun Facts ☀️ - Interesting Facts about the Sun. (2017, December 06). Retrieved from https://space-facts.com/the-sun/

Sun Facts: Interesting Facts about Sun (or Sol). (n.d.). Retrieved from https://theplanets.org/the-sun/

References

In Depth | Sun – Solar System Exploration: NASA Science. (2019, February 20). Retrieved from https://solarsystem.nasa.gov/solar-system/sun/in-depth/

Sun Facts ☀️ - Interesting Facts about the Sun. (2017, December 06). Retrieved from https://space-facts.com/the-sun/

Sun Facts: Interesting Facts about Sun (or Sol). (n.d.). Retrieved from https://theplanets.org/the-sun/

Websites used:

https://spaceplace.nasa.gov/menu/sun/

https://solarsystem.nasa.gov/solar-system/sun/in-depth/

https://nineplanets.org/sol.html

Webs

https://www.nationalgeographic.com/science/space/solar-system/the-sun/

https://theplanets.org/the-sun/

https://space-facts.com/the-sun/

References

In Depth | Sun – Solar System Exploration: NASA Science. (2019, February 20). Retrieved from https://solarsystem.nasa.gov/solar-system/sun/in-depth/

Sun Facts ☀️ - Interesting Facts about the Sun. (2017, December 06). Retrieved from https://space-facts.com/the-sun/

Sun Facts: Interesting Facts about Sun (or Sol). (n.d.). Retrieved from https://theplanets.org/the-sun/

References
https://www.dkfindout.com/us/earth/seasons/

https://www.livescience.com/25202-seasons.html

https://www.encyclopedia.com/earth-and-environment/atmosphere-and-weather/weather-and-climate-terms-and-concepts/seasons

Websites:

References

In Depth | Sun – Solar System Exploration: NASA Science. (2019, February 20). Retrieved from https://solarsystem.nasa.gov/solar-system/sun/in-depth/

Sun Facts ☀️ - Interesting Facts about the Sun. (2017, December 06). Retrieved from https://space-facts.com/the-sun/

Sun Facts: Interesting Facts about Sun (or Sol). (n.d.). Retrieved from https://theplanets.org/the-sun/

https://www.space.com/11162-10-surprising-moon-facts-full-moons.html

https://space-facts.com/the-moon/

The Moon is the fifth largest moon in the Solar System. The brightest object in the night makes Earth a livable planet. The moon causes tides in the ocean guiding humans for thousands of years. Scientists think that a Mars - sized body collided with Earth which formed the moon. The moon has been here since prehistoric times maybe even before that!