Is the Universe Expanding?
Is the universe expanding? About a hundred years ago astronomers made a discovery that helped us unravel the mystery of the history of the universe!
Annotations:
Heliocentrism http://www.youtube.com/watch?v=khIzr6610cQ
Project MINERVA: http://www.youtube.com/watch?v=s9r83dBL5ZY
Dark Energy: http://www.youtube.com/watch?v=ATwVApurIQ4
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Sources:
http://www.nasa.gov/audience/foreducators/5-8/features/F_How_Big_is_Our_Universe.html
https://cosmology.carnegiescience.edu/timeline/1929
https://www.cfa.harvard.edu/~dfabricant/huchra/hubble/
http://www.space.com/24073-how-big-is-the-universe.html
http://www.universetoday.com/40064/hubbles-law/
Images:
https://video.kidibot.com/wp-content/uploads/2020/12/youtubomatic/a-3EV.M._Slipher.gif
https://en.wikipedia.org/wiki/File:Redshift.svg
https://en.wikipedia.org/wiki/File:Emission_spectrum-H.svg
https://video.kidibot.com/wp-content/uploads/2020/12/youtubomatic/a-3ENursery_of_New_Stars_-_GPN-2000-000972.jpg
https://video.kidibot.com/wp-content/uploads/2020/12/youtubomatic/a-3EAndromeda_galaxy.jpg
https://video.kidibot.com/wp-content/uploads/2020/12/youtubomatic/a-3EAndromeda_galaxy_2.jpg
https://video.kidibot.com/wp-content/uploads/2020/12/youtubomatic/a-3ELemaitre.jpg
https://video.kidibot.com/wp-content/uploads/2020/12/youtubomatic/a-3EEdwin-hubble.jpg
https://video.kidibot.com/wp-content/uploads/2020/12/youtubomatic/a-3EHST-SM4.jpeg
https://video.kidibot.com/wp-content/uploads/2020/12/youtubomatic/a-3ECMB_Timeline300_no_WMAP.jpg
