• March solar storms heated Earth’s atmosphere

    The recent solar activity did more than spark pretty auroras around the poles. Researchers say the solar storms of March 8th through 10th dumped enough energy in Earth’s upper atmosphere to power every residence in New York City for two years. Although the influx of

  • Satellites map fine aerosol pollution over China

    Many types of aerosol particles circulate in the atmosphere, but one of the most damaging to human health is known as PM2.5, a technical term for microscopic bits of matter less than 2.5 microns in diameter (one thirtieththe width of a human hair). These small

  • Venus, Jupiter and the crescent Moon alignment this week

    On March 24th, 25th and 26th, Venus, Jupiter and crescent Moon will appear side by side again in the western sky at sunset. Best time for observing the sky show is before the sky fades completely black. These bright objects are extra-beautiful when they are framed by

  • Returning Sunspot 1431 produced moderate M1 solar flare

    Old Sunspot 1431 is now rotating back into view off the southeast limb and is also producing solar flares. So far this afternoon it produced a minor C6.5 flare, followed by a moderate M1.0 event at 19:40 UTC. Various small sunspots did form including regions 1441, 1442