The world regulated sulfur in ship fuels, and the lightning stopped
If you look at a map of lightning near the Port of Singapore, you'll notice an odd streak of intense lightning activity right ...
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Optical observations explore the nature of supernova remnant G206.7+5.9
The LAMOST spectra revealed that the investigated regions of G206.7+5.9 showcase large ionized sulfur and ionized nitrogen to hydrogen-alpha ratios. This suggests that the emission primarily ...