Goals: BRRISON - or Balloon Rapid Response for ISON - is a stratospheric science balloon designed to capture unique images and data from comet ISON as it passes through the inner solar system. The balloon will carry a telescope and science instruments 37 km (23 miles) above the Earth's surface to scan the passing comet for clues to the origins of our solar system. The one day flight also will be a test to demonstrate the capability of science balloons to contribute to planetary science from high altitude.

Accomplishments: The science payload suffered an anomaly following launch, preventing the payload from collecting mission data. About two and a half hours after BRRISON's launch, the 0.8-meter telescope on the gondola returned to a stowed position too rapidly, driving the telescope past a stow latch. The telescope was unable to be redeployed despite numerous attempts. The cause of the anomaly is under investigation.