Bright Filament Eruption (May 1, 2015)
Hi-res TIF (6.2M)
An elongated solar filament that extended almost half the Sun's visible hemisphere erupted into space (Apr. 28-29, 2015) in a large burst of bright plasma.
Filaments are unstable strands of plasma suspended above the Sun by magnetic forces. Solar astronomers around the world had their eyes on this unusually large filament and were thrilled to see it erupt. Both of SOHO's coronagraph instruments show the coronal mass ejection associated with the eruption.
The white circle in the center of the round disk represents the size of the Sun, which is being blocked by the occulting disks. Credit: SOHO, NASA/ESA.
SOHO began its Weekly Pick some time after sending a weekly image or video clip to the American Museum of Natural History (Rose Center) in New York City. There, the SOHO Weekly Pick is displayed with some annotations on a large plasma display.
If your institution would also like to receive the same Weekly Pick from us for display (usually in Photoshop or QuickTime format), please send your inquiry to firstname.lastname@example.org.