ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
Latest Magazine Issues
Jun 2026
Jan 2026
2026
Latest Journal Issues
Nuclear Science and Engineering
July 2026
Nuclear Technology
Fusion Science and Technology
Latest News
Two steps forward for U.K. advanced nuclear
This week, two significant announcements have emerged from the United Kingdom’s advanced reactor sector.
On June 14, Rolls-Royce, the United Kingdom National Nuclear Laboratory, and the Japan Atomic Energy Agency announced that they had signed two trilateral memorandums of cooperation to collaborate on “advanced modular reactor (AMR) technology, specifically high-temperature gas-cooled reactors (HTGR), and the coated particle fuel these reactors will use.”
Separately, on June 16, Bellevue, Wash.–based TerraPower announced that its Natrium reactor design has been formally submitted for U.K. regulatory review. The company also announced the formation of a new subsidiary, TerraPower UK Ltd.
Technical Session
Tuesday, May 10, 2022|10:30AM–12:30PM EDT|Vanda
Session Chairs:
Michelle Rucker (NASA)
Laura Burke (NASA)
Session Organizers:
Alternate Chair:
Michael Chappell (NASA)
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
1.9MWe Nuclear Electric Propulsion-Chemical Propulsion Piloted Mars Opposition Vehicle
Steven Oleson (NASA Glenn Research Center), Elizabeth Turnbull (NASA Glenn Research Center), Laura Burke (NASA Glenn Research Center), Thomas Packard (HX5), Lee Mason (NASA Glenn Research Center), James Fittje (Science Applications International Corp.), Anthony Colozza (HX5), Paul Schmitz (Power Computing Solutions), Steven McCarty (NASA Glenn Research Center), John Yim (NASA Glenn Research Center), Brandon Klefman (NASA Glenn Research Center), John Gyekenyesi (HX5), Brent Faller (NASA Glenn Research Center), David Smith (HX5), Lucia Tian (NASA Glenn Research Center), Caroline Austin (NASA Glenn Research Center), W. Peter Simon (NASA Glenn Research Center), Christopher Heldman (NASA Glenn Research Center), Onoufrios Theofylaktos (NASA Glenn Research Center), Christine Schmid (NASA Glenn Research Center), Thomas Parkey (NASA Glenn Research Center), Natalie Weckesser (NASA Glenn Research Center)
Paper
Subscale NTP Engines for Human Mars Missions
Christopher B. Reynolds (Aerojet Rocketdyne), C. Russell Joyner II (Aerojet Rocketdyne), Timothy Kokan (Aerojet Rocketdyne), Daniel J.H. Levack (Aerojet Rocketdyne)
Combined Nuclear Electric and Chemical Propulsion for Crewed Mars Opposition Missions
Laura Burke (NASA Glenn Research Center), Steven Oleson (NASA Glenn Research Center), David Smith (HX5)
A Dynamic Radioisotope Power System for a Pressurized Lunar/Mars Rover
Steve Oleson (NASA Glenn Research Center), Paul Schmitz (Power Computing Solutions), Michael B. Smith (ORNL), Tony Colozza (HX5), Lucia Tian (NASA Glenn Research Center), Brandon Klefman (NASA Glenn Research Center), Steven Korn (NASA Glenn Research Center), Max Chaiken (NASA Glenn Research Center), Tom Packard (HX5), Jim Fittje (Science Applications International Corp.), John Gyekenyesi (HX5), Elizabeth Turnbull (NASA Glenn Research Center)
Mass Modeling of NEP Power Conversion Concepts for Human Mars Exploration
William Machemer (Analytical Mechanics Assoc.), Matthew Duchek (Analytical Mechanics Assoc.), Christopher Harnack (Analytical Mechanics Assoc.), Emanuel Grella (Analytical Mechanics Assoc.), Dennis Nikitaev (Analytical Mechanics Assoc.), Corey D. Smith (Analytical Mechanics Assoc.)
