The Robert "Bob" Twiggs STEM Education Collection consists of PowerPoint presentations, videos, published articles, research reports, etc. created by Bob Twiggs during his career as an aerospace engineer and professor of space systems engineering from 1984 to 2025. The collection also includes PowerPoint presentations, articles, and reports from other scientists and researchers in the areas of aerospace engineering and satellite construction.

Robert "Bob" Twiggs is an American aerospace engineer. He is emeritus Professor of Astronautics and Space Science at Morehead State University. He co-invented the CubeSat reference design for miniaturized satellites along with Jordi Puig-Suari of California Polytechnic State University, now an industry standard for the design and deployment of small satellites.

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Submissions from 2002

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CubeSat 2002 CDR, Robert J. Twiggs

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CubeSat: Performance Evaluation of a Deployable Thin Film Solar Array, Michael Forbis, Ian Prager, and Matthew Veldhuis

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CubeSat Workshop: Frascati, Italy, Robert J. Twiggs

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DARPA, Robert J. Twiggs, Jordi Puig-Suari, and Brian Horias

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Emerald Final Report for NAG5-9737, Robert J. Twiggs

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HyperCube Team 1: Space Sciences and Technology Demonstration, Jim Albers, Mike Dowler, Kathy Lee, Gordon Maahs, and Steve Sears

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Iridium: Space Engineering - Project Based Learning by Working Real Space Programs, Robert J. Twiggs

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Mechanical Engineering Thermosciences Division Seminar, Robert J. Twiggs

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Nanosat One Critical Design Review: Final Report - Part 1, Robert J. Twiggs, Jonathan How, and Christopher Kitts

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Nanosat One Critical Design Review: Final Review - Part 3, Robert J. Twiggs, Jonathan How, and Christopher Kitts

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New Technologies for Rapid Space Experiments: Preliminary Design Review, Robert J. Twiggs

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OPAL Microsatellite - Final Report, Robert J. Twiggs

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Opal, Sapphire, and the FGN, James Cutler

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RASCAL: Responsive Access, Small Cargo, Affordable Launch, Robert J. Twiggs

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Real Spacey Programs: Project Based Learning, Robert J. Twiggs

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Responsive Access, Small Cargo, Affordable Launch: Introduction Briefing, Robert J. Twiggs

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Spacecraft Design Program, Robert J. Twiggs

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Space Engineering - Project Based Learning by Working Real Space Programs, Robert J. Twiggs and Michael Colonno

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Stanford Affiliates Presentation: Team 4 – QuakeSat, Robert J. Twiggs

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Stanford Classes At NASA Ames, Robert J. Twiggs

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Stanford MicroSats, Robert J. Twiggs

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Stanford MicroSats, Robert J. Twiggs

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Stanford Space Systems Program: Using CubeSats, Robert J. Twiggs

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Stanford Student Satellite Program, Robert J. Twiggs and Bulent Altan

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Subsystems & Components Review: Final Review - Part 2, Robert J. Twiggs

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The Next Generation of Innovative Space Engineers: University Students are Now Getting a Taste of Space Experience Building, Launching and Operating their own Space Experiments with Low-Cost Picosatellites, Robert J. Twiggs

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The Next Generation of Innovative Space Engineers: University Students are Now Getting a Taste of Space Experience Building, Launching and Operating their own Space Experiments with Low-Cost Picosatellites, Robert J. Twiggs

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The University Space Community: An Asset for Workforce Training & Low Cost Space Experimentation, Robert J. Twiggs

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Tristar Cubesat Project, Robert J. Twiggs

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University Space Programs & Collaborative Space Research, Robert J. Twiggs

Submissions from 2001

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Antarctic 2000: An Expedition to Prepare for Mars Missions, Robert J. Twiggs

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ARLISS News Broadcast, Robert J. Twiggs

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ARLISS Project - 2001 Video, Robert J. Twiggs

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BioExplorer Bus‐Low Cost Approach, Robert J. Twiggs and Seiji Kuroki

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California Launch VehicleEducation Initiative, Robert J. Twiggs

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CubeSat: The Development and Launch Support Infrastructure for Eighteen Different Satellite Customers on One Launch, Robert J. Twiggs, Jordi Puig-Suari, and Clark Turner

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CubeSat: The Development and Launch Support Infrastructure for Eighteen Different Satellite Customers on One Launch, Robert J. Twiggs, Jordi Puig-Suari, and Clark Turner

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CubeSat –The Next Generation, Robert J. Twiggs

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Emerald Nanosatellite: Structures & Mechanisms, Robert J. Twiggs

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Emerging and Advanced Technologies: Small Satellites, Robert J. Twiggs

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Evolution of the CubeSat Concept, Robert J. Twiggs

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Falconsat - 1: Design - Lessons Learned - How We Built a Satellite in 6 Months, Jim White

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First CASI/UTIAS Workshop on Low-Cost Space System: University of Toronto, Robert J. Twiggs

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Highly Innovative and Rapid Turn-around Space Test Program, Robert J. Twiggs

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Innovation in Space: University Programs, Robert J. Twiggs

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Proactive Rideshare Opportunity Brokering Services (PROBS), Robert J. Twiggs, Brian Horais, and Charles Byvik

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Proactive Rideshare Opportunity Brokering Services (PROBS) for Secondary Payloads, Robert J. Twiggs, Brian Horais, and Chuck Byvik

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Proactive University Satellite Program, Robert J. Twiggs

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Re-injecting Innovationinto theSpace Test Process: A mission for payload brokering, Brian Horais

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Spacecraft Program, Robert J. Twiggs

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SRI: Stanford Space Systems Program, Robert J. Twiggs

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Stanford Experience and Programs in Micro, Nano and Pico Satellites, Robert J. Twiggs

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Stanford Experience and Programs In Micro, Nano and Pico Satellites, Robert J. Twiggs

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Stanford Space Systems Program, Robert J. Twiggs

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Stanford Space Systems Program, Robert J. Twiggs

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Student Space Systems Program At Stanford Univerity: The Aerospace Corporation, Robert J. Twiggs

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University of Texas Austin: Stanford Space Systems Program, Robert J. Twiggs

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Visiting Committee Review: Spacecraft Program, Robert J. Twiggs

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“Walk” Evolution of the CubeSat Concept, Robert J. Twiggs

Submissions from 2000

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A new Challenge for Education with Low-Cost Space Experimentation, Robert J. Twiggs

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A new Challenge for Low-Cost Space Experimentation, Robert J. Twiggs

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A new Challenge for Low-Cost Space Experimentation: Naval Research Laboratory, Robert J. Twiggs, Jay Smith, and Ivan Galysh

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A new Opportunity for Low-Cost Space Experimentation: E201 Seminar, Robert J. Twiggs

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A new Opportunity for Low-Cost Space Experimentation: Leland High School, Robert J. Twiggs

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CubeSat: A new Generation of Picosatellite for Education and Industry Low-Cost Space Experimentation, Robert J. Twiggs

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CubeSat: A new Generation of Picosatellite for Education and Industry Low-Cost Space Experimentation, Robert J. Twiggs, Jordi Puig-Suari, AugustuS S. Moore, and Shinichi Nakasuka

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Emerald Nanosatellite, Freddy Pranajaya, Scott Crumine, Julie Townsend, and Esther Dutton

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Emerald System, Robert J. Twiggs

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Examples of Low-Cost Space Experimentation: University Space Systems Symposium, Robert J. Twiggs

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Kennedy Middle School - ARLISS - 1999, Robert J. Twiggs

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Nanosat One Critical Design Review, jonathan How, Christopher Kitts, and Robert J. Twiggs

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Nanosat One Critical Design Review: The Complete Review, Robert J. Twiggs, Christopher Kitts, and Jonathan How

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OPAL: Orbiting Picosatellite Automated Launcher, Robert J. Twiggs

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OPAL: Orbiting Picosatellite Automated Launcher, Robert J. Twiggs

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Orion/Emerald Formation Flying Experiments, Brian Engberg and Jonathon How

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Project Based Learning, Robert J. Twiggs

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Safety, Integration, and Test, Robert J. Twiggs

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SAPPHIRE: Stanford's First Amateur Satellite, Robert J. Twiggs and Michael Swartwout

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SHARP-S1 Overview/Status, Paul Kolodziej

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SHARP: Sharp Hypersonic Aerothermal Research Probe, Sean Dougherty

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Space Systems Development Laboratory: SHARP Project, Robert J. Twiggs, Christopher Kitts, Pascal Stang, and Pradeep Sen

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SPIE Conference, Robert J. Twiggs

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Stanford University Space Programs: Program Time-Line, Robert J. Twiggs

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Subsystems & Components Review, Robert J. Twiggs

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The Emerald Nanosatellites:Two Student-Built Satellites as a testbed for Distributed Space System Technologies, Julie Anne Townsend

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The OPAL Satellite and Internet-Based Operations, Robert J. Twiggs

Submissions from 1999

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ARLISS: Student Payload Rocket Launch, Robert J. Twiggs

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Current Design - Structure and Layout, Robert J. Twiggs

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DARPA MEMS Demonstration in Systems of DoD Relevance, Robert J. Twiggs

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EMERALD: A Low Cost Spacecraft Mission for Validating Formation Flying Technologies, Robert J. Twiggs, Jonathan How, Freddy Pranajaya, and Bryan Palmintier

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EMERALD: A Low-Cost Spacecraft Mission for Validating Formation Flying Technologies, Robert J. Twiggs, Chris Kitts, and Jon How

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EMERALD: Mission Statement, Robert J. Twiggs

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Emerald & Orion Formation Flying Experiment, Robert J. Twiggs

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Emerald: University Built Satellite Extending Communications Experimentation for the Amateur Community, Robert J. Twiggs and Freddy Pranajaya

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Joint Space Systems Operations Program, Robert J. Twiggs and Billy Smith

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Microsatellite and Formation Flying Technologies on University Nanosatellites, Robert J. Twiggs

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OPAL: 2nd SSDL Microsatellite, Robert J. Twiggs

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OPAL: A First Generation Microsatellite That Provides Picosat Communications for the Amateur Radio Community, Robert J. Twiggs, James Cutler, Greg Hutchinson, and Jeffrey Williams

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OPAL Launch Opportunity, Robert J. Twiggs

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OPAL Microsatellite, Greg Hutchins