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- California's strict vaccination laws may only have a small effect
- Authorities do little to halt severe air pollution in northern India
- Tiny artificial sunflowers could be used to harvest solar energy
- Voyager 2 sent back its first detailed data from interstellar space
- Cosmological crisis: We don't know if the universe is round or flat
- California's strict vaccination laws may only have a small effect
- Authorities do little to halt severe air pollution in northern India
- Tiny artificial sunflowers could be used to harvest solar energy
- Voyager 2 sent back its first detailed data from interstellar space
- Cosmological crisis: We don't know if the universe is round or flat