The four-planet lineup that began in January concludes by mid- to late February, as Saturn sinks increasingly lower in the ...

"We were very surprised to see that the same tiny plasma jets appear to be driving both the fast and the slow solar wind." ...

In the heart of wintertime, when springtime flowers have yet to bloom and the sky remains gray one day after the next, it can ...

Climate scientists present a realistic supercomputer simulation that resolves the complex interactions between fire, vegetation, smoke and the atmosphere. The authors find that increasing greenhouse ...