Strange sphere appeared next to the Sun
An orbiting NASA space telescope (SDO) captured a dark, planet-sized object flying close to the Sun and appears to be refueling with solar plasma.
The imagery was captured by Nasa’s Solar Dynamics Observatory and edited together by a YouTube user, Sunsflare, who challenged experts to explain the strange ‘visitor’.
According to Alex Young, one of the scientists at NASA Goddard Space Center’s heliophysics department, it is just a “coronal cavity associated with a filament.” The strange sphere is called a coronal cavity and it is part of a structure called a filament—or prominence when observed off the edge of the Sun.
Sun’s filaments look dark while observed at certain light wavelengths because they are cooler than the surrounding material. The conditions were right—viewing angle, combination of image filters, etc.—so it seemed exceptional. It really isn’t but it looks interesting. The one thing that is interesting and added to the combination of factors is that it is about to erupt just after the period in the original video.