The "blood moon" eclipse above the Washington Monument just before dawn on the National Mall, in Washington, D.C. Andrew Harnik/The Washington Times /Landov hide caption

itoggle caption Andrew Harnik/The Washington Times /Landov

A member of the Indian security force keeps watch over a launch vehicle carrying the Mars Orbiter probe at the Indian Space Research Organization facility, in Sriharikota, in 2013. AFP/Getty Images hide caption

itoggle caption AFP/Getty Images

Scientists and officials of Indian Space Research Organization pose for photos as they celebrate the success of Mars Orbiter Mission (MoM) on Wednesday. Indian Press Information Bureau/Xinhua/Landov hide caption

itoggle caption Indian Press Information Bureau/Xinhua/Landov

Scientists and engineers at the Indian Space Research Organization (ISRO) monitor the Mars Orbiter Mission (MOM) in Bangalore, India on Sept. 15. MOM is expected to enter into Mars orbit on Wednesday. Jagadeesh NV /Landov hide caption

itoggle caption Jagadeesh NV /Landov

In an image provided by NASA, astronaut Randy Bresnik prepares to enter Boeing's CST-100 spacecraft for an evaluation at the company's Houston Product Support Center. NASA awarded Boeing with a $4.2 billion contract Tuesday. AP hide caption

itoggle caption AP

Closeup of Philae's primary landing Site J, which is located on the "head" of Comet 67P/Churyumov–Gerasimenko. The image was taken by Rosetta's OSIRIS narrow-angle camera on Aug. 20. ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA hide caption

itoggle caption ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA