It's most likely Mercury orbiting the Sun. I could be wrong, but that's what it looks like to me. I don't think it's heading towards the Sun.
Originally posted by The Dispatcherator
It's DEFINITELY Mercury. Stereo consists of TWO spacecraft, both of which orbit the sun, in the same orbital path as Earth. One is called "A" or AHEAD, & is ahead of the earth, and the other is "B" or BEHIND & is behind the Earth. You'll notice that the B spacecraft is the one capturing the images of the object...
Well, a small amount of research will show you this picture, which shows exactly where A, B, Earth, Sun, and Mercury are RIGHT NOW:
stereo.gsfc.nasa.gov...
Yes, from the point of view of B, mercury is traveling from right to left, and is currently on the right side of the sun..... so, yes,
ITS MERCURY!!!!!!!!!
To prove it another way, look at this orbit simulator:
ssd.jpl.nasa.gov...
ITS MERCURY!


