How far back in time can scientists see? Currently, the earliest photo of the universe is the cosmic microwave background, but math models prove the universe existed long before that time. An installment from the SciShow Space series presents a method for getting an older photo, known as a cosmic neutrino background, as well as the challenges of technology, detection, and more.

Concepts

neutrinos, the universe, the big bang theory, photons

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Additional Tags

science

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Instructional Ideas

• Share more details of the PTOLEMY project
• Based on the current timelines, estimate when scientists will be able to capture 100 cosmic neutrinos per year

Classroom Considerations

• Relies on prior knowledge of the big bang theory and cosmic microwave background

• This video is hosted on YouTube

Pros

• Provides closed captioning for the hearing impaired
• Shares current and future research

Cons

• None

Common Core

SL.9-10.2 SL.11-12.2 RST.9-10.4 RST.11-12.4