Earth

Collisions with earth http://www.sciencedaily.com/releases/2008/01/080129212723.htm,; http://science.nasa.gov/science-news/science-at-nasa/2005/13may_2004mn4/

World Time http://24timezones.com/

The sun appears red sometimes on earth as the sunlight is deflected by the particles in the earth's atmosphere. http://curious.astro.cornell.edu/question.php?number=280

There are many man made objects orbiting earth. There would be more sophisticated objects orbiting in the future.

Summer solstice, The longest day of the year

http://en.wikipedia.org/wiki/Summer_solstice

http://www.bom.gov.au/calendar/annual/seasons.shtml

http://www.ga.gov.au/about-us/news-media/news-2012/the-summer-solstice.html

The moon has an effect on the earth by affecting the oceans and creating a phenomenon called Sea Tides http://en.wikipedia.org/wiki/Tide