Members Can Post Anonymously On This Site
Younger trees champion carbon capture
-
Similar Topics
-
By NASA
5 min read
Peter Griffith: Diving Into Carbon Cycle Science
Dr. Peter Griffith is the director of NASA’s Carbon Cycle and Ecosystems Office. “As a scientist, I started off in the water and then gradually moved to on top of the water, and then ultimately went up into the air and into space, at least with the instrument eyes that we have on the world,” he said. “In some respects, I was a carbon cycle scientist since before it was cool.”NASA / Angeles Miron Name: Peter Griffith
Title: Director, NASA Carbon Cycle and Ecosystems Office
Organization: Biospheric Sciences Laboratory, Code 618
What’s your official role at Goddard?
I lead NASA’s Carbon Cycle and Ecosystems Office, which is in the Biospheric Sciences Laboratory at Goddard. We answer to NASA Headquarters, we support the Carbon Cycle and Ecosystems Focus area, and we support different elements of the funded program that comes out of that. To a great extent, we support the terrestrial ecology program, but also ocean biology and biogeochemistry, biodiversity, the Carbon Monitoring System, and some application work.
A lot of our work consists of supporting field campaigns. These are activities where dozens and sometimes hundreds of investigators go out into amazing parts of the world and do the work on the ground – or on the water – to have an up-close view of what’s happening in critical parts of the planet and couple that fine-scale information with observations from remote sensing instruments on aircraft and ultimately on satellites.
What do you do on a day-to-day basis?
One of the really fun things I get to do is coordinate with our teams that are out in the field and the flight crews. We’ve got an aircraft, a relatively small twin-engine turboprop that’s flown in Alaska with an instrument called AVIRIS, a very fancy camera that sees lots of colors and makes images from it that have far more wavelengths than what your cell phone camera has in it. It’s called an imaging spectrometer. We fly that to look at vegetation characteristics and methane emissions across Alaska and some parts of Canada.
A couple months ago, I got to go up and spend some time in Fairbanks working with the instrument crew from NASA’s Jet Propulsion Laboratory in Southern California and the flight crew and fine-tune when and where we would fly each day. I don’t do lab work or very much field work at this point, so an awful lot of it is coordination with scientists and engineers to help us go to the right places and measure the right things.
How did your path to Goddard start?
I was a kid growing up in the in the Apollo program era, and I lived in my parents’ house on a lake in Central Florida about 50 miles from Cape Canaveral. A lot of my childhood consisted of catching alligators in the lake and watching Saturn V rockets take off. It was very exciting.
Because I was a giant nerd with big, thick glasses, being an astronaut was completely off the table, I knew that. But that whole thing about swimming in the lake took me in, ultimately, into being a scuba diver and going into marine biology. As a scientist, I started off in the water and then gradually moved to on top of the water, and then, ultimately went up into the air and into space, at least with the instrument eyes that we have on the world. In some respects, I was a carbon cycle scientist since before it was cool.
Peter Griffith, Brian Howard and Xanthe Walker discuss field work in Denali National Park during a 2016 expedition.NASA / Kate Ramsayer Do you have any cool stories from the field?
Oh, boy. We have several 100 investigators that have been funded over the years and probably 100 or more who are involved in one way or another, and I probably credit a lot of them for having the coolest stories, But in my own role, I’ve had conversations and consultations with federal and state and local folks in Alaska and Canada about where and when we fly our airborne instruments, so in the course of that, I’ve had the chance to talk with representatives from First Nations about what their concerns are. It’s been really interesting for me, very broadening of my knowledge from my narrow view as a scientist. We like to think we know a lot of things, but in talking with many of our Indigenous partners, I continue to learn that there are a lot of things that we don’t know, and that I don’t know.
One of the great things about this job is getting to learn new things all the time. Sometimes it’s about new satellites or new ways of using different kinds of radar and lidar to observe the planet. That is certainly a stimulating part of the job, but another really stimulating part of the job is getting to know people and getting to see their world and hear them explain how they see the world through their eyes.
Do you ever miss doing field work?
That’s a really good question. It’s a challenge because, there are a lot of sacrifices that you make as a field scientist. It may put you a very long way away from your family, for instance. One of the reasons, actually, that I moved into project management was that it gave me a better work-life balance at a time when I had small kids.
It’s been so fun working at Goddard Space Flight Center. There are still times when – and particularly after having to work remotely for a while – that I come on campus and see the great, big NASA emblem on the side of the High Bay Clean Room building and I go, “I can’t believe I get to work here.”
Conversations With Goddard is a collection of Q&A profiles highlighting the breadth and depth of NASA’s Goddard Space Flight Center’s talented and diverse workforce. The Conversations have been published twice a month on average since May 2011. Read past editions on Goddard’s “Our People” webpage.
By Ananya Udaygiri
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Media Contact:
Rob Garner
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Share
Details
Last Updated Nov 08, 2023 Editor Jessica Evans Contact Rob Garnerrob.garner@nasa.gov Location Goddard Space Flight Center Related Terms
Carbon Cycle Earth Earth Science Goddard Space Flight Center Oceans People of Goddard Explore More
8 min read John Moisan Studies the Ocean Through the ‘Eyes’ of AI
Article 10 months ago 8 min read Andrew Sayer – Takes a World View
Article 6 years ago 5 min read Rachel Tilling: Scuba Diving and Camping on Sea Ice
Article 2 years ago View the full article
-
By NASA
A view of the outside of the OSIRIS-REx sample collector. Sample material from asteroid Bennu can be seen on the middle right. Scientists have found evidence of both carbon and water in initial analysis of this material. The bulk of the sample is located inside.Photo: NASA/Erika Blumenfeld & Joseph Aebersold Initial studies of the 4.5-billion-year-old asteroid Bennu sample collected in space and brought to Earth by NASA show evidence of water and high-carbon content, which together could indicate the building blocks of life on Earth may be found in the rock. NASA made the news Wednesday from its Johnson Space Center in Houston where leadership and scientists showed off the asteroid material for the first time since it landed in September.
This finding was part of a preliminary assessment of NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification and Security – Regolith Explorer) science team.
“The OSIRIS-REx sample is the biggest carbon-rich asteroid sample ever delivered to Earth and will help scientists investigate the origins of life on our own planet for generations to come,” said NASA Administrator Bill Nelson. “Almost everything we do at NASA seeks to answer questions about who we are and where we come from. NASA missions like OSIRIS-REx will improve our understanding of asteroids that could threaten Earth while giving us a glimpse into what lies beyond. The sample has made it back to Earth, but there is still so much science to come – science like we’ve never seen before.”
Although more work is needed to understand the nature of the carbon compounds found, the initial discovery bodes well for future analyses of the asteroid sample. The secrets held within the rocks and dust from the asteroid will be studied for decades to come, offering insights into how our solar system was formed, how the precursor materials to life may have been seeded on Earth, and what precautions need to be taken to avoid asteroid collisions with our home planet.
Bonus sample material
The goal of the OSIRIS-REx sample collection was 60 grams of asteroid material. Curation experts at NASA Johnson, working in new clean rooms built especially for the mission, have spent 10 days so far carefully disassembling the sample return hardware to obtain a glimpse at the bulk sample within. When the science canister lid was first opened, scientists discovered bonus asteroid material covering the outside of the collector head, canister lid, and base. There was so much extra material it slowed down the careful process of collecting and containing the primary sample.
“Our labs were ready for whatever Bennu had in store for us,” said Vanessa Wyche, director, NASA Johnson. “We’ve had scientists and engineers working side-by-side for years to develop specialized gloveboxes and tools to keep the asteroid material pristine and to curate the samples so researchers now and decades from now can study this precious gift from the cosmos.”
Within the first two weeks, scientists performed “quick-look” analyses of that initial material, collecting images from a scanning electron microscope, infrared measurements, X-ray diffraction, and chemical element analysis. X-ray computed tomography was also used to produce a 3D computer model of one of the particles, highlighting its diverse interior. This early glimpse provided the evidence of abundant carbon and water in the sample.
“As we peer into the ancient secrets preserved within the dust and rocks of asteroid Bennu, we are unlocking a time capsule that offers us profound insights into the origins of our solar system,” said Dante Lauretta, OSIRIS-REx principal investigator, University of Arizona, Tucson. “The bounty of carbon-rich material and the abundant presence of water-bearing clay minerals are just the tip of the cosmic iceberg. These discoveries, made possible through years of dedicated collaboration and cutting-edge science, propel us on a journey to understand not only our celestial neighborhood but also the potential for life’s beginnings. With each revelation from Bennu, we draw closer to unraveling the mysteries of our cosmic heritage.”
For the next two years, the mission’s science team will continue characterizing the samples and conduct the analysis needed to meet the mission’s science goals. NASA will preserve at least 70% of the sample at Johnson for further research by scientists worldwide, including future generations of scientists. As part of OSIRIS-REx’s science program, a cohort of more than 200 scientists around the world will explore the regolith’s properties, including researchers from many U.S. institutions, NASA partners JAXA (Japan Aerospace Exploration Agency), CSA (Canadian Space Agency), and other scientists from around the world. Additional samples will also be loaned later this fall to the Smithsonian Institution, Space Center Houston, and the University of Arizona for public display.
NASA’s Goddard Space Flight Center in Greenbelt, Maryland, provides overall mission management, systems engineering, and the safety and mission assurance for OSIRIS-REx. Lauretta, the principal investigator, leads the science team and the mission’s science observation planning and data processing. Lockheed Martin Space in Littleton, Colorado, built the spacecraft, provided flight operations, and was responsible for capsule recovery. Goddard and KinetX Aerospace were responsible for navigating the OSIRIS-REx spacecraft. Curation for OSIRIS-REx, including processing the sample when it arrived on Earth, is taking place at NASA Johnson.
OSIRIS-REx is the third mission in NASA’s New Frontiers Program, managed by NASA’s Marshall Space Flight Center in Huntsville, Alabama, for the Science Mission Directorate at NASA Headquarters in Washington.
Find more information about NASA’s OSIRIS-REx mission at:
https://www.nasa.gov/osiris-rex
-end-
Karen Fox / Erin Morton
Headquarters, Washington
202-358-1275 / 202-805-9393
karen.c.fox@nasa.gov / erin.morton@nasa.gov
Shaneequa Vereen
Johnson Space Center, Houston
281-483-5111
shaneequa.y.vereen@nasa.gov
View the full article
-
By European Space Agency
Jupiter’s moon Europa is one of a handful of worlds in our Solar System that could potentially harbour conditions suitable for life. Previous research has shown that beneath its water-ice crust lies a salty ocean of liquid water with a rocky seafloor. However, planetary scientists had not confirmed whether or not that ocean contained the chemicals needed for life, particularly carbon.
View the full article
-
By European Space Agency
A new investigation by an international team of astronomers using data from the NASA/ESA/CSA James Webb Space Telescope into K2-18 b, an exoplanet 8.6 times as massive as Earth, has revealed the presence of carbon-bearing molecules including methane and carbon dioxide. The discovery adds to recent studies suggesting that K2-18 b could be a Hycean exoplanet, one which has the potential to possess a hydrogen-rich atmosphere and a water ocean-covered surface.
View the full article
-
By European Space Agency
For the first time, the NASA/ESA/CSA James Webb Space Telescope has observed the chemical signature of carbon-rich dust grains at redshift ~ 7 [1], which is roughly equivalent to one billion years after the birth of the Universe [2]. Similar observational signatures have been observed in the much more recent Universe, attributed to complex, carbon-based molecules known as polycyclic aromatic hydrocarbons (PAHs). It is not thought likely, however, that PAHs would have developed within the first billion years of cosmic time.
View the full article
-
-
Check out these Videos
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.