Blog Post 1 !

1.Search for aliens (SETI)

The SETI institute was founded in 1984 as a nonprofit corporation and in 1985 NASA awarded the institute a contract to play a major role in a search being performed by the space agency. They use  radio telescopes to search for alien signals being sent to Earth.




2.Milky Way Galaxy

The Milky Way is the galaxy which is the home of our Solar System  with at least 200 billion other stars. The Milky Way is actually a giant, its mass is probably between 750 billion and one trillion solar masses, and its diameter is about 100,000 light years All the objects in the Milky Way Galaxy orbit their common center of mass, called the Galactic Center .
 
3.Red Giants

When the core of the star is  hotter than it was during its normal life and the heat causes the outer parts of the star to swell. The star becomes a giant. The radiation from the fusing shell  grows weak by the time it reaches the surface of the star. Weak radiation is red, so the star becomes a red giant.The Sun will run out of fuel and become a red giant in about 4 billion years.
 
4.Black holes

 Black holes have a strong suction force, they may only suck up what crosses their event horizons, and they are not capable of absorbing the whole universe. The known closest black hole to Earth is Cygnus X-1, located about 8000 light years away. Although whiteholes are mathematically possible, there have yet to be observations to prove their existence. As black holes age they gain more mass as they suck in more matter






 
 
5.Mars
Mars is named after the Greek God of War. Mars is referred to as the Red Planet because of its distinct red color. ItMars had a magnetic field like the Earth, but has lost it. tTemperatures are generally cold, ranging from -200 to a maximum high of 80 degrees Fahrenheit. Mars has roughly the same surface area of the Earth, but is much less dense. A Martian day is a little over 24 hours.