
Solar Week
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Solar Week
@SolarWeek
Lessons, games & activities about the Sun aimed at ages 9-14. During Solar Week, twice a year, ask scientists about the Sun! Ask here: https://t.co/x3SrA62Ysq






Atmospheric metal layers that appear at dusk and just before dawn seen over Boulder, CO for the first time. Work led by CIRES/@CUBoulder’s Xinzhao Chu, published this week in @theAGU Geophysical Research Letters. Read the full story ➡️ bit.ly/2TxAxmZ

Odd sunspot group was detected 5/25/21-horseshoe shape but magnetic field was N/S not E/W. This image shows it on 5/26 in full disk and close-up B&W H-a and 'white light' sunspots. More detail at Spaceweather archive for 5/25. #NASASolarWeek

Tonight's Terrier-Improved Malemute sounding rocket launch carrying the VIPER experiment will study very low frequency waves produced by both natural or artificial means in Earth's ionosphere. But where is the ionosphere and what goes on there?














ME 03/21/21-Full Sun: Prominences (P)(plasma ejections) rt< 3 Active regs. 1w/sunspots(ss)(bright w/dark arcs) up rt edge, ctr &up lt; Filament(dark arc)ctr; blue 'Earth' scale. Close-up: 2 ss in H-a light;1w filament & spicules(SP)(fringe on edge)& 2 sm P&SP; #NASASolarWeek

ME 03/16/21-Full Sun: Prominences (plasma ejections) lt & rt; 3 Active regs. 2 w/sunspots(ss)(bright w/dark arcs) up ctr, b rt & lt edge; Filament (dark arc) b ctr; blue 'Earth' scale. Close-up: upper ss in H-a light; nice Proms b&w #NASASolarWeek



ME today-Full Sun: Prominences (P)(plasma ejections) lt & rt; Active regs. w/sunspots(ss)(bright w/dark arcs) low rt & ctr rt; Filament (dark arc) b rt; blue 'Earth' scale. Close-up: ss in H-a light rt & lt w spicules (fringe on edge)&P's; detuned ss rt (umbra,...) #NASASolarWeek


