NASA Media Gallery sun earth day 2011 Media Gallery NASA

NASA Media Gallery sun earth day 2011 Media Gallery NASA
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Interesting thoughts!

The Solar System forms a tiny part of the Milky Way Galaxy, a vast conglomeration of stars and planets. What makes astronomy so thrilling is that despite its size, the Milky Way is not the only galaxy in the universe. There are hundreds of billions of galaxies out there, probably more. The closest galaxy to our own Milky Way is Andromeda. Now, brace yourself for the distance: it is 2.3 million light years away. One of the most exciting phenomena for astronomers is the black hole. It is an area of the universe where the concentration of mass is so massive (no pun intended) that the gravitational pull it generates sucks in everything around it. Everything includes light. Remember that the escape velocity for any object in the universe is the speed required to escape the objects gravitational pull. The escape velocity for the Earth is slightly over 11 kilometers per hour while for the Moon is 2.5 kilometers per second. Well for a black hole, the escape velocity exceeds the speed of light. That is how strong the pull is.



"The near-side of the Moon has been studied for centuries, and yet continues to offer up surprises for scientists with the right tools. We interpret the gravity anomalies discovered by GRAIL as part of the lunar magma plumbing system--the conduits that fed lava to the surface during ancient volcanic eruptions," Dr. Maria Zuber explained in an October 1, 2014 NASA Press Release. Dr. Zuber is from the Massachusetts Institute of Technology (MIT) in Cambridge.



Now, the fishing magazines and sites around the Internet will have you believe that the relationship between solar/lunar cycles and fishing is much more complex than I have explained here. In reality it's not. In fact, if you try to follow most of the charts out there, you will find no direct correlation between those charts and the number and size of fish you catch.

We all have learned through School that the Moon is what affects the tides by its gravitational pull on the earth. Well the gravitational pull of the moon not only impacts the changing tides it impacts the activity of fish also.



Once in a blue moon. Technically, it takes the moon an average of 29.53 days to travel around the earth. Most months are longer than this. So, it is possible to have more than one full moon in one month. When this happens, the second moon is called a "calendar blue moon." Of course, this is a simple rule. So, let's complicate it!



I have talked to MIT and Harvard grads who still think that if a rocket whizzes by you in space it makes a whooshing sound much like a jet craft does in the atmosphere. Someone forgot to tell them there is no sound where there is no air. So what, you say?

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