What is that black thing?

Would you believe the Space Shuttle?

From the photo description on Flickr,

STS-125 Atlantis Solar Transit (200905120002HQ)

In this tightly cropped image, the NASA space shuttle Atlantis is seen in silhouette during solar transit, Tuesday, May 12, 2009, from Florida. This image was made before Atlantis and the crew of STS-125 had grappled the Hubble Space Telescope. Photo Credit: (NASA/Thierry Legault)

Thierry made this image using a solar-filtered Takahashi 5-inch refracting telescope and a Canon 5D Mark II digital camera. Photo Credit: (NASA/Thierry Legault)

You can see more of Thierry’s fine work at: www.astrophoto.fr/