sun
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…
Mysterious Ribbon at Edge of Solar System is Changing
A year ago, researchers from the IBEX mission – NASA’s Interstellar Boundary Explorer – announced the discovery of an unexpected…
Solar Dynamics Observatory Earns its Stripes
[/caption] "Now we know what it would look like if Jupiter and the sun had a child," joked Ralph Seguin…
Amazing Sunspot Image from New Solar Telescope
[/caption] A new type of adaptive optics for solar observations has produced some incredible results, providing the most detailed image…
Amazing Image: Map of Magnetic Field Lines of the Sun
[/caption] The Sun's corona is threaded with a complex network of magnetic fields, and this amazing new image from the…