Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much of its atmosphere, helping transform it from a warmer, wetter planet into a ...

Fire danger will be critical to extreme Saturday in southern Colorado, with the driest air of the week combined with gusty ...

For two days in the December the solar wind suddenly stop on Mars and its atmosphere on the sun-facing side swelled "by ...