News tagged with supernova
Related topics: stars , massive stars , galaxies , white dwarfs , neutron stars
In tree rings, Japanese scientists find 8th-century mystery
In the late eighth century, Earth was hit by a mystery blast of cosmic rays, according to a Japanese study that found a relic of the powerful event in cedar trees.
Space & Earth / Earth Sciences
18 hours ago |
4.8 / 5 (15) |
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