WASHINGTON: As NASA develops plans for a manned mission to Mars, scientists said Friday that cosmic rays during an interplanetary voyage could cause subtle brain damage, leaving astronauts confused, forgetful and slow to react to the unexpected.
In a NASA-funded study of radiation-exposed mice published Friday in Science Advances, researchers at the University of California, Irvine and the University of Nevada warned that prolonged bombardment by charged particles in deep space could affect the brain cells involved in decision-making and memory, with implications for possible manned forays into deep space.
“These sorts of cognitive changes could manifest during the mission and could be a real problem,” said Cary Zeitlin at the Southwest Research Institute in San Antonio, who wasn’t involved in the study. In 2013, Dr. Zeitlin reported radiation levels between Earth and Mars detected by the Mars Science Laboratory craft during its cruise to the red planet, and found that the exposure was the equivalent of getting “a whole-body CT scan once every 5 or 6 days.”
Tesla driverless system to use updated radar technology
WASHINGTON: Electric carmaker Tesla announced Sunday it was upgrading its Autopilot software to use more advanced radar technology. In a...
