Thanks for the Goo

Leroy Chiao and Salizhan Sharipov successfully completed their spacewalk today outside the ISS. In addition to installing a robotic arm, they discovered an odd honeycombed substance outside, along with dark oily "Goo" which may have been responsible for the oxygen generator’s continuing problems. Additionally, flight controllers noticed a repeat of "mysterious forces" which tilted the station during previous spacewalks. Thrusters needed to compensate for these forces several times during the spacewalk.