Astronomy!!!!

Astronomical Unit

• 149 597 871 kilometers• This is the average distance between the earth

and the sun

Light Year

• The distance traveled by light in one Earth year

• This is a unit of length

Alice and Bob

• https://www.youtube.com/watch?v=iKTv-BDZ8Os

• Why is it dark at night?• https://www.youtube.com/watch?v=F2VOMn

VyY1s• Is that star really there?• Why are we looking through time when we

look at the stars at night?

Nebula

• Also called diffuse nebula. a cloud of interstellar gas and dust

Stars

• A celestial body that generates light and other radiant energy and consists of a mass of gas held together by its own gravity in which the energy generated by nuclear reactions. Plasma.

• Any of the celestial bodies visible at night from Earth as relatively stationary, usually twinkling points of light.

Betelgeuse – taken with Hubble Telescope

Documentaries

• https://www.youtube.com/watch?v=qcfN_HN4TVg

• National Geographic Hubble History (2009)• https://www.youtube.com/watch?v=5vOU6-1

yNZs• Distances and Planets like ours• http://www.msn.com/en-ca/news/photos/spe

ctacular-photos-from-space/ss-BBjBTyI?ocid=iehp#image=1

• Spectacular photos from space.

Necessities for Life

• http://www.space.com/25530-earthsize-exoplanet-kepler-186f-habitable-discovery.html

• http://www.nasa.gov/ames/kepler/nasas-kepler-discovers-first-earth-size-planet-in-the-habitable-zone-of-another-star