(From 1971, posted to Youtube in 2017; via JClone)
2018-12-14 @ 15.36.06 ∈ Suomeksi
2018-12-14 @ 15.30.42 ∈ In English
2018-12-14 @ 11.08.02 ∈ Suomeksi
2018-12-12 @ 19.50.28 ∈ In English
2018-12-12 @ 17.29.35 ∈ In English

Researchers consider whether supernovae killed off large ocean animals at dawn of Pleistocene
Within a few hundred years, long after the strange light in the sky had dwindled, a tsunami of cosmic energy from that same shattering star explosion could have reached our planet and pummeled the atmosphere, touching off climate change and triggering mass extinctions of large ocean animals, including a shark species that was the size of a school bus.







