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College of Science, Technology, Engineering & Mathematics (STEM) (OER Hub): ASTR 1020: Stellar Astronomy and Lab (ASTR 1021)

OER Materials for Stellar Astronomy

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Description: The Trappist-1 stellar system lies 4 light years beyond our sun. It’s home to seven Earth-like planets, and one of them could harbour life. Visionary pioneers across the globe are using data to extrapolate entire worlds, but what progress has been made on the search for life on another planet in the universe.

The video above is provided through Alexander Street and is available to students through a subscription provided by Woodward Library. A search for Stellar Astronomy results in access to thousands of videos with captions included. Students will need to authenticate with their library username and password when accessing these titles off-campus. A new tool from ASP called Video Interaction Functionality is now available to faculty members. This functionality promotes student engagement by allowing professors to embed assessment and pedagogical tools within the videos.

Over a thousand years ago, the stellar explosion known as supernova SN 1006 was observed. It was brighter than Venus, and visible during the day for weeks. The brightest supernova ever recorded on Earth, this spectacular light show was documented all around the world. Ancient observers were treated to this celestial firework display without understanding its cause. Astronomers now understand that SN 1006 was caused by a white dwarf star that captured mass from a companion star, became unstable and exploded. The explosion has left a blazing hot cloud of expanding debris. Because no material falls back into a neutron star or black hole after this type of supernova explosion, the expulsion of this star's contents is complete. Recent observations of the remnant of SN 1006 reveal the release of elements such as iron previously locked up inside the star. Is it the beginning of a process for the creation of a new world?

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