Blog

Risk of Acute and Chronic Carbon Dioxide Exposure

Hostile, enclosed spaceflight environments (including space vehicles and suits) do not have the benefit of natural carbon dioxide (CO2) removal. In these environments, equipment (e.g., the Carbon Dioxide Removal Assembly, lithium hydroxide, and amine systems) control CO2 levels and mitigate consequences of elevated CO2 exposure.

Posted March 11, 2025

Human Health and Performance

Human System Risks

Risk of Adverse Cognitive or Behavioral Conditions and Psychiatric Disorders

Exposure to the isolation and confinement of spaceflight can result in decrements in cognitive and behavioral functioning.

Posted March 11, 2025

Human Health and Performance

Human System Risks

Concern of Venous Thromboembolism

Note: The Concern of Venous Thromboembolism is historical and now a component of CV Risk. Stagnant or reverse flow in the internal jugular vein has been observed in 6 of 11 crew members (55%) tested in-mission on approximately flight day 50; one crewmember was found to have an occlusive internal jugular vein thrombus requiring treatment […]

Posted March 11, 2025

Earth Science

The NASA DC-8 Retires: Reflections on its Contributions to Earth System Science

Introduction Since 1987, a highly modified McDonnell Douglas DC-8 aircraft has been a workhorse in NASA’s Airborne Science Program (ASP)—see Photo 1.

Posted March 11, 2025

Earth Science

Summary of Special Engage Session on “Remote Sensing and the Future of Earth Observations”

Introduction On October 16, 2024, a special session of the NASA Goddard Engage series took place in the Goett Auditorium (Building 3) at NASA’s Goddard Space Flight Center (GSFC). The Engage series is intended to explain work at GSFC in an immersive and nontechnical setting.

Posted March 11, 2025

Humans in Space

Astronauts

Expedition 73

International Space Station (ISS)

ISS Research

Jonny Kim

NASA Astronaut Jonny Kim to Discuss Upcoming Launch, Mission

NASA will provide interview opportunities with astronaut Jonny Kim beginning at 9 a.m. EDT, Tuesday, March 18, to highlight his upcoming mission to the International Space Station in April. The virtual interviews from Star City, Russia, will stream live on NASA+.

Posted March 11, 2025

Astrophysics

Exoplanets

Studying Exoplanets

Super-Earth Exoplanets

Uncategorized

Discovery Alert: ‘Super-Earth’ Swings from Super-Heated to Super-Chill

The Discovery A possible “super-Earth” orbits a relatively close, Sun-like star, and could be a habitable world – but one of extreme temperature swings, from scorching heat to deep freeze. Key Facts The newly confirmed planet is the outermost of three detected so far around a star called HD 20794, just 20 light-years from Earth. […]

Posted March 11, 2025

Earth

Science Mission Directorate

The Solar System

How Do We Know the Earth Isn’t Flat? We Asked a NASA Expert: Episode 53

This was a magical revelation for the Greeks and the Egyptians, who were able to see from the motions of the stars and the way the Sun moved. They saw the way the Sun’s shadow worked in different places. And they figured, well, that’s only possible if the Earth is round. And they took that […]

Posted March 11, 2025

Glenn Research Center

Aeronautics

Aeronautics Research Mission Directorate

Green Aviation Tech

NASA History

NASA’s Chevron Technology Quiets the Skies

Shortly after dawn on March 27, 2001, NASA pilot Bill Rieke took off from an airfield just outside of Phoenix in NASA’s blue-and-white Learjet 25 and flew low over a series of microphones for the first flight test of a groundbreaking NASA technology. On one of the plane’s engines was an experimental jagged-edged nozzle that […]

Posted March 11, 2025

Nancy Grace Roman Space Telescope

Dark Energy

Goddard Space Flight Center

Stars

The Universe

Team Preps to Study Dark Energy via Exploding Stars With NASA’s Roman

The universe is ballooning outward at an ever-faster clip under the power of an unknown force dubbed dark energy. One of the major goals for NASA’s upcoming Nancy Grace Roman Space Telescope is to help astronomers gather clues to the mystery. One team is setting the stage now to help astronomers prepare for this exciting […]

Posted March 11, 2025