Astronomy!!!!

Astronomical Unit 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 BDZ8Os BDZ8Os Why is it dark at night? VyY1s 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 Vg Vg National Geographic Hubble History (2009) 1yNZs 1yNZs Distances and Planets like ours ca/news/photos/spectacular-photos-from- space/ss-BBjBTyI?ocid=iehp#image=1 ca/news/photos/spectacular-photos-from- space/ss-BBjBTyI?ocid=iehp#image=1 Spectacular photos from space.

Necessities for Life exoplanet-kepler-186f-habitable- discovery.html exoplanet-kepler-186f-habitable- discovery.html kepler-discovers-first-earth-size-planet-in-the- habitable-zone-of-another-star kepler-discovers-first-earth-size-planet-in-the- habitable-zone-of-another-star