David Spencer | |
|---|---|
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| Born | David Allen Spencer November 21, 1965 United States, Indiana |
| Nationality | American |
| Scientific career | |
| Fields | Aerospace engineering |
| Institutions | Vestigo Aerospace, Inc. Jet Propulsion Lab Purdue University The Planetary Society |
David A. Spencer is the Founder and Chief Executive Officer for Vestigo Aerospace, Inc. As an aerospace engineer, Spencer designs and operates planetary space science missions, and develops space technology. [1] [2]
Spencer received B.S. and M.S. degrees in aeronautics and astronautics from Purdue University in W. Lafayette, Indiana. He earned his Ph.D. from the Guggenheim School of Aerospace Engineering at the Georgia Institute of Technology, completing a dissertation on automated proximity operations using relative orbital elements. [3]
Spencer worked at NASA's Jet Propulsion Laboratory from 1991 through 2008. [4] He served on the mission design and navigation team for the TOPEX/Poseidon mission, and he was the lead mission designer for Mars Pathfinder, responsible for the design of the interplanetary transfer and the entry, descent and landing (EDL) trajectory. [5] Spencer served as the mission manager for NASA's Mars Odyssey from 1997-2002, and Deep Impact from 2004-2005, leading the mission design and operations for the projects. He was the deputy project manager for the Phoenix Mars Lander, with a focus on EDL and surface operations. Spencer left JPL in 2008 to join the Aerospace Engineering faculty at Georgia Tech.
At Georgia Tech, Spencer founded the Center for Space Systems, and was the Co-Director of the Space Systems Design Laboratory, a multi-disciplinary research and educational organization dedicated to the design, development and operations of advanced space systems and technologies. He initiated a small satellite program at Georgia Tech, establishing facilities for satellite fabrication, testing, tracking and operations. Spencer transitioned from Georgia Tech in 2016 to join the faculty of the School of Aeronautics and Astronautics at Purdue University, where he conducted research on small satellite applications, proximity operations, and aeroassist technologies. He led the Purdue Engineering Initiative on cislunar space, with the goal of expanding the orbital economy to encompass the cislunar environment.
Spencer served as mission manager for The Planetary Society's LightSail 1 spacecraft, leading the mission design and system engineering of the solar sail demonstration project. LightSail 1 was launched on May 20, 2015. [6] Spencer led the team through a successful solar sail deployment almost a month later, before LightSail 1 reentered Earth's atmosphere. [7] Spencer is the project manager for a second LightSail spacecraft, LightSail 2, launched in 2019. [8] LightSail 2 was deployed into orbit by the Prox-1 spacecraft developed by Spencer and students at Georgia Tech. [9] LightSail 2 successfully demonstrated controlled solar sailing in Earth orbit. [10]
Spencer returned to JPL from 2020 - 2024 to serve as the Mission System Manager for the Mars Sample Return Campaign, with the objective to return a geologically diverse set of Mars samples for Earth-based laboratory analysis. The Mars Sample Return Campaign is a joint effort between the National Aeronautics and Space Administration (NASA) and the European Space Agency (ESA).
Spencer is the Founder and CEO of the 2019 startup Vestigo Aerospace, a space technology company that markets the Spinnaker product line of dragsails for the deorbit of space vehicles. Vestigo Aerospace incorporated in 2022 and has received NASA Small Business Innovative Research (SBIR) funding to advance the technology. Vestigo raised $375,000 in seed funding from strategic investment firm Manhattan West in 2022. Vestigo's Spinnaker3 dragsail, hosted onboard an Astro Digital Corvus-Micro small satellite, is manifested to fly on the SpaceX Transporter-13 launch in March, 2025.
Interplanetary spaceflight or interplanetary travel is the crewed or uncrewed travel between stars and planets, usually within a single planetary system. In practice, spaceflights of this type are confined to travel between the planets of the Solar System. Uncrewed space probes have flown to all the observed planets in the Solar System as well as to dwarf planets Pluto and Ceres, and several asteroids. Orbiters and landers return more information than fly-by missions. Crewed flights have landed on the Moon and have been planned, from time to time, for Mars, Venus and Mercury. While many scientists appreciate the knowledge value that uncrewed flights provide, the value of crewed missions is more controversial. Science fiction writers propose a number of benefits, including the mining of asteroids, access to solar power, and room for colonization in the event of an Earth catastrophe.
Spacecraft propulsion is any method used to accelerate spacecraft and artificial satellites. In-space propulsion exclusively deals with propulsion systems used in the vacuum of space and should not be confused with space launch or atmospheric entry.
Solar sails are a method of spacecraft propulsion using radiation pressure exerted by sunlight on large surfaces. A number of spaceflight missions to test solar propulsion and navigation have been proposed since the 1980s. The first spacecraft to make use of the technology was IKAROS, launched in 2010.
Geoffrey Alan Landis is an American aerospace engineer and author, working for the National Aeronautics and Space Administration (NASA) on planetary exploration, interstellar propulsion, solar power and photovoltaics. He holds nine patents, primarily in the field of improvements to solar cells and photovoltaic devices and has given presentations and commentary on the possibilities for interstellar travel and construction of bases on the Moon, Mars, and Venus.
Aerobraking is a spaceflight maneuver that reduces the high point of an elliptical orbit (apoapsis) by flying the vehicle through the atmosphere at the low point of the orbit (periapsis). The resulting drag slows the spacecraft. Aerobraking is used when a spacecraft requires a low orbit after arriving at a body with an atmosphere, as it requires less fuel than using propulsion to slow down.
A CubeSat is a class of small satellite with a form factor of 10 cm (3.9 in) cubes. CubeSats have a mass of no more than 2 kg (4.4 lb) per unit, and often use commercial off-the-shelf (COTS) components for their electronics and structure. CubeSats are deployed into orbit from the International Space Station, or launched as secondary payloads on a launch vehicle. As of December 2023, more than 2,300 CubeSats have been launched.
Aerocapture is an orbital transfer maneuver in which a spacecraft uses aerodynamic drag force from a single pass through a planetary atmosphere to decelerate and achieve orbit insertion.
A Mars sample-return (MSR) mission is a proposed mission to collect rock and dust samples on Mars and return them to Earth. Such a mission would allow more extensive analysis than that allowed by onboard sensors.
Kathleen Connor Howell is an American aerospace engineer known for her contributions to dynamical systems theory applied to spacecraft trajectory design which led to the use of halo orbit in multiple NASA space missions. She is currently the Hsu Lo Distinguished Professor at Purdue University in the School of Aeronautics and Astronautics. In acknowledgment of her many achievements, Discover magazine recognized her in 2002 as one of the 50 most important women in science.
Robert David Braun is an American aerospace engineer and academic. He has served as the dean of the College of Engineering and Applied Science at the University of Colorado Boulder, the David and Andrew Lewis Professor of Space Technology at the Georgia Institute of Technology, and the NASA Chief Technologist. Currently, Dr. Braun is the Space Sector Head at the Johns Hopkins University Applied Physics Laboratory (APL).
SpaceWorks Enterprises, Inc. (SEI) is an aerospace engineering company based in Atlanta, Georgia, United States that specializes in the design, assessment, hardware prototyping and flight demonstration of advanced space concepts for both government and commercial customers.
The Near-Earth Asteroid Scout was a mission by NASA to develop a controllable low-cost CubeSat solar sail spacecraft capable of encountering near-Earth asteroids (NEA). NEA Scout was one of ten CubeSats launched into a heliocentric orbit on Artemis 1, the maiden flight of the Space Launch System, on 16 November 2022.
Lunar Flashlight was a low-cost CubeSat lunar orbiter mission to explore, locate, and estimate size and composition of water ice deposits on the Moon for future exploitation by robots or humans.
OKEANOS was a proposed mission concept to Trojan asteroids, which share Jupiter's orbit, using a hybrid solar sail for propulsion; the sail was planned to be covered with thin solar panels to power an ion engine. In situ analysis of the collected samples would have been performed by either direct contact or using a lander carrying a high-resolution mass spectrometer. A sample-return to Earth was an option under study.
James Michael Longuski is an American scientist, inventor, writer, and educator known for his contributions to astrodynamics and space mission design. He worked as a space mission designer at Jet Propulsion Laboratory (JPL) for NASA starting in 1979. Longuski joined the faculty at Purdue University School of Aeronautics and Astronautics in 1988 and served until after the fall semester 2023.
CubeSail was a 2018 low-cost spacecraft propulsion demonstration mission using two identical 1.5U CubeSat satellites to deploy a 260 m (850 ft) long, 20 m2 (220 sq ft) solar sail ribbon between them. This mission was a first in a series of increasingly-complex planned demonstrations leading up to a full-scale UltraSail heliogyro by the University of Illinois and CU Aerospace.
Moriba Kemessia Jah CorrFRSE is an American space scientist and aerospace engineer who describes himself as a "space environmentalist". He specializes in orbit determination and prediction, especially as related to space situational awareness and space traffic monitoring. He is currently a full professor of Aerospace Engineering and Engineering Mechanics at the University of Texas at Austin, a position he attained in 2024, and a National Geographic Explorer. Jah has co-founded Privateer Space x Orbital Insight, GaiaVerse, and Moriba Jah Universal. His work now broadly focuses on decision intelligence to improve the stewardship of the planet and beyond.
Swati Mohan is an Indian-American aerospace engineer and was the Guidance and Controls Operations Lead on the NASA Mars 2020 mission.
David Y. Oh is an American spacecraft systems engineer and expert in electric propulsion. Dr. Oh currently works at the Jet Propulsion Laboratory (JPL) as the NASA Psyche mission chief engineer. Prior to this role he served as the Project Systems Engineering Manager for Psyche. He was also the cross-cutting phase lead and lead flight director for the NASA Mars Science Laboratory mission and was recognized in popular media for living on Mars time with his family during the month following the landing of the Curiosity rover.