How close is too close?
A supernova could affect Earth from up to 3,000 light‑years away, depending on type and energy.Supernova: Could One Harm Earth?
Fingerprints in Earth’s layers
Scientists found iron‑60 in Pacific seafloor and nitrate spikes in Antarctic ice that line up with the 1006 and 1054 events.Supernova: Could One Harm Earth?
