WHEN: Embargoed until Wednesday April 2, 2014 11:00 AM EDT

WHAT: Spaceflights beyond low earth orbit or lasting longer than 30 days, including extended stays on the International Space Station and missions to Mars, will likely expose astronauts to increased and even unknown levels of risk, and therefore would not meet NASA’s current health standards. The space agency commissioned a report from the Institute of Medicine (IOM), the health arm of the National Academy of Sciences, that provides ethics principles and responsibilities, policy proposals, and a decision-making framework to help guide NASA with implementing health standards for such spaceflights.

Advance copies of the report—Health Standards for Long Duration and Exploration Spaceflight: Ethics Principles, Responsibilities, and Decision Framework—will be available to reporters only beginning at 3 p.m. EDT Tuesday, April 1. To obtain an embargoed copy, contact the National Academies' Office of News and Public Information; tel. 202-334-2138 or e-mail [email protected]

WHO: Jeffrey Kahn, PhD, MPH, Levi Professor of Bioethics and Public Policy at the Johns Hopkins Berman Institute of Bioethics, is chair of the IOM committee and available for comment Tuesday, April 1 (under embargo) and Wednesday, April 2, 2014.

Media Contacts:Institute of Medicine: Jennifer Walsh or Chelsea Dickson, [email protected], 202.334.2183

Johns Hopkins: Leah Ramsay, [email protected], 202.642.9640

WHERE: www.nas.edu Report will be posted 11:00 AM EDT Wednesday, April 2, 2014