Sky and the space beyond

Many bloggers around the world are sitting on earth searching for motives in the sky to present on the web every Friday.
Up in the clouds there may also be someone with the face turned to the space and the universe beyond.If the eyes are "good enough" may be the size of things out there in our Solar System can be watched like this:
Adding some of the other planets in our solar system, we can see that the earth is quite small.
and the size of the Sun compared to the Planets shows the huge space out there.
However, the size of other things (Stars) in space outside our Solar System must be added to understand how small we rally are in the macro perspective.
Our Tellus is invisible in this scale.
Sirius is the brightest star in the night sky with a visual apparent magnitude of −1.47. At a distance of 2.6 parsecs (8.6 light-years), the Sirius system is one of our near neighbors.
Pollux also cataloged as Beta Geminorum (β Gem / β Geminorum), is an orange giant star approximately 34 light-years away in the constellation of Gemini (the Twins). Pollux is the brightest star in the constellation (brighter than Castor (Alpha Geminorum). As of 2006, Pollux was confirmed to have an extrasolar planet orbiting it.
Arcturus is at least 110 times more luminous than the Sun, but this underestimates its strength as much of the "light" it gives off is in the infrared; total power output is about 180 times that of the Sun. Arcturus is 36.7 light years (11.3 parsecs) from Earth, relatively close in astronomical terms.
Rigel, Aldebaran, and Betelgeuse can be found in the constellation Orion . The Hunter´s stars are found on the celestial equator and are visible throughout the world. Its three prominent "belt" stars - three stars of medium brightness in the mid-section of this constellation - make this constellation easy to spot and globally recognized.
Antares is a red supergiant star in the Milky Way galaxy with a diameter of approximately 700 times that of the sun. Antares is approximately 600 light years from our solar system. Its visual luminosity is about 10,000 times that of the Sun, but because the star radiates a considerable part of its energy in the infrared part of the spectrum, the bolometric luminosity equals roughly 65,000 times that of the Sun. The mass of the star is calculated to be 15 to 18 solar masses.

If we believe in climate changes (and that is not difficult to do), do we really believe that the human influence are the only cause? The size and powers from the things in the sky may be well in-calculated.
Happy watching tonight.