4 ms·
According to Wikipedia, there are six near-Earth supernova candidates. Effects range from destruction of the ozone layer to 3–4 °C of global warming. https://e
by numakerg 7y ago
According to Wikipedia, there are six near-Earth supernova candidates. Effects range from destruction of the ozone layer to 3–4 °C of global warming.
https://en.wikipedia.org/wiki/Near-Earth_supernova https://en.wikipedia.org/wiki/Near-Earth_supernova