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Put your arrow over the video and options will pop out; just click Full Screen and you are good.

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space astronomy "nasa missions" space.com

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Space.com is where humanity's journey to new and exciting worlds is transmitted back down to Earth. Where we vicariously explore the cosmos with astronauts, astrophysicists and enthusiasts. Here, we converse with the top minds in space exploration. Our mission: to keep you informed on the latest in space exploration, tech innovations, space travel polices and interstellar breakthroughs.

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NASA's Website!

http://www.nasa.gov

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Reporter(impolitely asks): About how old are you?

Moon: About 4.5 billion years old!

Reporter: And what about your diameter? How wide are you?

Moon: Touchy, touchy! Well, if you have to know, I'm 2,160 miles wide. Nearly as wide as the U.S!

Reporter: What are average temperatures on you?

Moon: Well, I am usually about 273 degrees during the day and maybe -243 degrees at night!

Reporter: Wow! That's a huge difference! Now, i know that Neil  Armstrong was the first to land on you, but can you tell us when?

Moon: Of course! It was on July 20, 1969.

Reporter: And how many missions have been sent

to you since that discovery?

Moon: Oh! I don't know! Definitely over 70!

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Sun- The sun is a giant bulge of really hot gases. The Sun is a medium sized star and has a medium amount of heat, but if the Sun was blue ( the hottest type of star) we would die of heat.  There have only been 10 missions  to the sun. That's a only a few!

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Satellites- Natural or artificial bodies that revolve around larger bodies such as planets.

Phase- The change in the sunlit area of one celestial body as seen from another celestial body

-the Sun is portrayed as the god Helios or Apollo in Greece.

-The Romans called it Sol.

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Related to Seasons

-The Earth is tilted on its axis at a 23.5 degree angle; this and the revolution around the sun result in the seasons.

-The tilt affects how much solar energy an area receives as Earth moves around the Sun; the Earth is at a different location around the Sun at every season. The northern and southern hemispheres experience different temperatures and amount of days because of this.

Arrangement

-During a Lunar Eclipse, the Sun's rays shine on the Earth, and the Earth's shadow falls on the Moon.=Sun, Earth, Moon

-During a Solar Eclipse, the Moon passes between the Sun and Earth, casting a shadow that rapidly moves across the surface.=Sun, Moon, Earth

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Diagram of the Earth, Moon, and Sun's rotation.

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Diagram of the Earth, Moon, and Sun's rotation.

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 The Position of the Earth, Moon, and Sun with every Moon Phase.

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 The Position of the Earth, Moon, and Sun with every Moon Phase.

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The sun will very slowly move pulling us with its gravitational pull, as we revolve around it, and the  Moon revolves around the Earth. So when the 1st quarter and 3rd quarter are in phase, they are in between the light and dark; the 1st quarter is to the right of the eastern hemisphere and the 3rd quarter is to the left of the western hemisphere. They both have the same amount of distance from the sun. The Full moon and the new moon align with the Prime Meridian; the full moon is further away from the Sun and the New Moon is closer to the sun. The waxing gibbous is located to the right of the eastern hemisphere farther away from the sun, and for the waxing crescent, it is the same as the waxing gibbous, but the moon is closer to the sun. The waning moon phases are located to the left of the western hemisphere. The waning gibbous is further away from the sun, and the waning crescent is closer to the sun.

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Harvest Moon

A harvest moon occurs at a specific time of the year. The moon officially turns full when it reaches the spot opposite to the sun. The harvest moon happens on the Saturday nearest to the fall equinox, which is September 23rd. Once in every three years we get the same full moon in October, but the one in September is called the harvest moon because farmers can continue their harvest late into the night by the light of the full moon.

The same moon appears for three days , but the one that appears on Saturday is the one that receives this name.

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Earth, Moon, Sun

-The Earth revolves around the Sun because the Sun "holds" the Earth by gravity, and as the sun moves, it pulls Earth along.

-The Moon takes longer to rotate on its axis than to orbit around Earth. There is a 2 hour difference.

Rotate=27 days and 9 hours

Revolve=27 days and 7 hours

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The moon is always changing its positions. That is why the moon looks different every night. The sun always shoots light to the moon, so the moon is always half lit up during the night and day. However, during the night when we usually see it we can only see a part of the light on the moon when the moon phases occur except for a full moon and a new moon.

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The question people asked us on twitter was, "What  moon phase is in the picture?" Well, that moon phase is a Waxing Crescent.

Also,  this picture shows a partial lunar eclipse.

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Relationship

-The Moon orbits around the Earth, and the Earth orbits around the Sun.

-The Sun provides heat and light for the Earth.

-The Sun reflects off of the moon which produces the light that makes the moon shine at night.

Moving

-The Earth rotates around its axis; it takes 24 hours to make a complete rotation.

-The Earth revolves around the Sun; it takes about a Calendar year to make a complete  revolution.

-The Moon orbits around the Earth and rotates on its axis at almost the same rate. That is why the Moon appears to be perfectly still.

-The Sun and the entire solar system orbits around the center of the milky way.

-It will take about 230 million years to make a complete orbit around the galaxy.

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Eclipses

There are between 2 and 5 solar eclipses each year.

A total solar eclipse only happens once every 1 and a half years

There are between 0 and 3 lunar eclipses each year.

The Moon moves across  the Sun at 2,250 km per hour

Only partial solar eclipses can be observed from the North and South Poles

The longest a total solar eclipse can last is 7 and a half minutes

A total solar eclipse is not noticable until the Sun is more than 90 percent covered by the Moon. At 99 percent coverage, daytime lighting resembles local twilight.

Successive eclipses in the Saros Cycle happen 1/3 of the way around the world from each other, and after three Saros Cycles, the eclipse returns to nearly the same geographic location after 54 years and 33 days.

Every eclipse begins at sunrise at some point in its track and ends at sunset about half way around the world from the start point.

Local temperatures often drop 20 degrees.

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This is a diagram of a Solar Eclipse.

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Here is a diagram of a lunar eclipse.

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Learn more about when eclipses happen and where you can see them at this helpful website!

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Solar and Lunar Eclipses Worldwide - Next 10 years

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List of Solar and Lunar Eclipses Worldwide Next 10 Years. Check where the eclipses are visible and if you can see them.

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Eclipse- when the body of one celestial body falls on another.

Solar Eclipse- when the moon comes between the Earth and the Sun.

Lunar Eclipse- when the Earth comes between the Sun and Moon, casting a shadow on the moon.

Annular Eclipse- a type of Solar Eclipse when the moon is farther from the Earth , so it does not completely cover the Sun.

Total Solar Eclipse- A type of Solar Eclipse when the disk of the moon completely covers the disk of the Sun.

Saros Cycle- When almost identical eclipses occur after 18 years and 11 days.

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This is the next part of the Cosmos episode.

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Support me on Patreon : http://www.patreon.com/Pattene4 Cosmos : A SpaceTime Odyssey Episode 1 2 3 4 5 6 7 8 9 10 11 12 13 Cosmos : A SpaceTime Odyssey Episode 1 2 3 4 5 6 7 8 9 10 11 12 13 Cosmos : A SpaceTime Odyssey Episode

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This is an excerpt from a Cosmos episode. The episode talks about the Big Bang and the formation of the Universe. This also explains what people thought about the Universe before we had a better explanation. Enjoy!

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Support me on Patreon : http://www.patreon.com/Pattene4 Cosmos : A SpaceTime Odyssey Episode 1 2 3 4 5 6 7 8 9 10 11 12 13 Cosmos : A SpaceTime Odyssey Episode 1 2 3 4 5 6 7 8 9 10 11 12 13 Cosmos : A SpaceTime Odyssey Episode

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This is what people believed when eclipses happened before we had the technology to find out the truth!

Before the the science behind eclipses was revealed, many cultures assumed that eclipses were caused by a giant dragon eating the sun or moon. In one legend, a dragon chases the sun and moon around the universe, swallowing them when he catches them. This is when an eclipse happens.

http://www.exploratorium.edu/eclipse/dragon.html

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By: They Might Be Giants

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They Might Be Giants - Why Does the Sun Shine?

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Well, since mid terms and people have been busy, K.R. hasn't been able to do any live vids. So, as is becoming the tradition, we have supplemented with cheap(no actors needed) slideshows. This is based from another They Might be giants song, its another one of our favorites.