sun
SDO Provides Constant, Unprecedented Views of Sun’s Inner Corona
[/caption] Usually the only time we can see the innermost part of the Sun’s corona is when there is a…
SOHO Finds Its 2000th Comet
[/caption] From a NASA Press Release: As people on Earth celebrate the holidays and prepare to ring in the New…
Near-Synchronous Explosions Connect Across the Vast Distances on the Sun
For several decades, scientists studying the sun have observed solar flares that appear to occur almost simultaneously but originated in…
Voyager 1 Has Outdistanced the Solar Wind
[/caption] The venerable Voyager spacecraft are truly going where no one has gone before. Voyager 1 has now reached a…
Sneak Attacks from the Sun
[/caption] From a Harvard Smithsonian Center for Astrophysics press release: Our Sun can be a menace when it sends out…
Spectroscopy in 1881
[/caption]Presently, I've been reading a lot of very old papers and books in astronomy. The work I'm currently reading a…
Aurora Alert! Solar Flare Heading Our Way
An active sunspot (1123) erupted early this morning (Nov. 12th), producing a C4-class solar flare and apparently hurling a filament…
Solar Explosions Spark Controversy
[/caption] Nowhere in the Solar System are conditions more extreme than the Sun. Every second it converts millions of tons…
Astrophotos: Halo Around the Sun in South Africa Today
[/caption] Residents around Johannesburg, South Africa were treated with a rare astronomical (or actually atmospheric) sight -- a halo around…
Spacecraft Calibrations Provide Unique Solar “Artwork”
[/caption] If you check out the Solar Dynamics Observatory website today to get an update of what the Sun is…