NASA’s DAVINCI mission will study the origin, evolution, and current state of Venus in unprecedented detail from near the top of the clouds to the surface of the planet. The goal of the mission is to help answer long-standing questions about our neighboring planet, especially if Venus is as humid and habitable as Earth. Credit: NASA’s Goddard Space Flight Center
last year, NASA was selected THE DAVINCI MISSION as part of its Discovery program. Investigarà l’origen, el desenvolupament i la condició[{”attribute=””>VenusambundetallincomparabledesdepropdelapartsuperiordelsnúvolsfinsalasuperfíciedelplanetaVenuselplanetaméscalentdelsistemasolartéunaatmosferaespessaitòxicaplenadediòxiddecarboniiunapressiódepressióincreïbleésde1350psi(93bar)alasuperfície[{”attribute=””>Venusinunparalleleddetailfromnearthetopofthecloudstotheplanet’ssurfaceVenusthehottestplanetinthesolarsystemhasathicktoxicatmospherefilledwithcarbondioxideandanincrediblepressureofpressureis1350psi(93bar)atthesurface[{”attribute=””>VenusambundetallincomparabledesdepropdelapartsuperiordelsnúvolsfinsalasuperfíciedelplanetaVenuselplanetaméscalentdelsistemasolartéunaatmosferaespessaitòxicaplenadediòxiddecarboniiunapressiódepressióincreïbleésde1350psi(93bar)alasuperfície[{”attribute=””>Venusinunparalleleddetailfromnearthetopofthecloudstotheplanet’ssurfaceVenusthehottestplanetinthesolarsystemhasathicktoxicatmospherefilledwithcarbondioxideandanincrediblepressureofpressureis1350psi(93bar)atthesurface
Named after Renaissance artist and visionary scientist Leonardo da Vinci, the DAVINCI Deep Atmosphere Venus Investigation of Noble Gas, Chemistry, and Imaging mission will be the first spacecraft to enter Venus’ atmosphere from NASA’s Pioneer Venus on 1978 and the USSR Vega in 1985. It is expected to be launched in the late 2020s.
Now, in a recently published article, NASA scientists and engineers give new details about the mission of the Deep Atmosphere Venus Investigation Agency of Noble Gas, Chemistry, and Imaging (DAVINCI), which will go down through the atmosphere in layers of Venus to the surface of the planet in mid-2031. DAVINCI is the first mission to study Venus using both spacecraft overflights and a descent probe.
DAVINCI, a flying analytical chemistry lab, will for the first time measure critical aspects of Venus’ massive atmosphere-climate system, many of which have been measurement targets for Venus since the early 1980s. It will also provide the first image of Venus’s mountainous land descent as it maps its rock composition and surface relief to scales that are not possible from orbit. The mission supports measurements of undiscovered gases present in small quantities and the deeper atmosphere, including the key proportion of hydrogen isotopes, components of water that help reveal the history of water, either as oceans of liquid water or steam in the primitive atmosphere.
NASA has chosen the DAVINCI + (Deep Atmosphere Investigation of Noble Gases, Chemistry, and Imaging +) mission as part of its discovery program, and will be the first spacecraft to enter Venus’ atmosphere from astronaut Venus NASA in 1978 and the USSR Vega in 1985. Named the DAVINCI + mission for Renaissance artist and scholar Leonardo da Vinci to bring 21st century technologies to the other world. DAVINCI + may reveal whether Earth’s sister planet closely resembles Earth’s twin in the distant past, possibly hospitable to oceans and continents. Credit: NASA’s Goddard Space Flight Center
The mission’s Carrier, Relay, and Imaging (CRIS) spacecraft has two instruments on board that will study the planet’s clouds and map highland regions such as Venus’ overflight, and will also drop a small five-instrument landing. which will provide a variety of new measurements with extremely high accuracy as it goes down. on the surface of the infernal Venus.
“This set of chemical, environmental, and lineage data will paint a picture of the layers of Venus’ atmosphere and how they interact with the surface of the Alpha Reggio Mountains, which are twice the size of Texas,” Jim said. Garvin, lead author. From the research paper in the Journal of Planetary Science and principal investigator DAVINCI from NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “These measures will allow us to assess historical aspects of the atmosphere, as well as detect special types of rocks on the surface, such as granite, while looking for landscape features that can inform us about erosion or other formation processes.”
DAVINCI will send a one-meter-diameter probe to withstand the high temperatures and pressures near the surface of Venus to explore the atmosphere from above the clouds to near the surface of the land that could have been an ancient continent. During its final miles of freefall (the artist’s impression is shown here), the spacecraft will capture stunning images and chemical measurements of Venus’ deepest atmosphere for the first time. Credit: NASA / GSFC / CI Labs
DAVINCI will use three types of Venus gravity aids, which provide fuel by using the planet’s gravity to change the speed and / or direction of the CRIS flight system. The first two gravitational assistants will help prepare CRIS for a Venus flyby to perform remote sensing in the near ultraviolet and infrared, obtaining more than 60 gigabytes of new data on the atmosphere and surface. Venus’ third gravity assistance will create the spacecraft to launch the probe for entry, descent, flag and landing, as well as tracking transmissions to Earth.
The first flyby of Venus will be six and a half months after launch, and it will take two years to put the probe in position to re-enter the atmosphere above Alfa Regio with perfect “noon” lighting. with the goal of measuring the landscape of Venus on scales from 328 feet (100 meters). ) up to more than one meter. These indicators allow for geological studies in the style of landing in the mountains of Venus without the need for a landing.
The DAVINCI Deep Atmosphere probe descends through the dense atmosphere of carbon dioxide from Venus into the Alpha Regio Mountains. Credit: NASA’s Goddard Space Flight Center
Once CRIS is about two days away from Venus, the probe’s flight system will be launched along with the three-foot (one meter) titanium probe enclosed inside. The spacecraft will begin interacting with Venus’ upper atmosphere 75 miles (120 kilometers) above the surface. The scientific probe will begin scientific observations after the heat shield is removed about 42 miles (67 kilometers) above the surface. With the heat shield removed, the probe’s inputs would swallow atmospheric gas samples for detailed chemical measurements of the type made in[{”attribute=””>MartambelroverCuriosityDuration=””>MarswiththeCuriosityroverDuringitshour-longdescenttothesurfacetheprobewillalsoacquirehundredsofimagesassoonasitemergesunderthecloudsataround100000feet(30500meters)abovethelocalsurface[{”attribute=””>MartambelroverCuriosityDurantelseudescensalasuperfícied’unahoradeduradalasondatambéadquiriràcentenarsd’imatgestanbonpuntsurtisotaelsnúvolsauns100000peus(30500metres)persobredelasuperfícielocal[{”attribute=””>MarswiththeCuriosityroverDuringitshour-longdescenttothesurfacetheprobewillalsoacquirehundredsofimagesassoonasitemergesunderthecloudsataround100000feet(30500meters)abovethelocalsurface
“The probe will land in the Alpha Regio Mountains, but it doesn’t have to work once it lands, as all the necessary scientific data will be taken before it reaches the surface.” said Stephanie Getty, Goddard’s assistant principal investigator. “If we survive the landing at about 25 miles per hour (12 meters / second), we could have up to 17-18 minutes of surface operations in ideal conditions.”
DAVINCI is tentatively scheduled to launch in June 2029 and enter the Venusian atmosphere in June 2031.
“No previous mission to the atmosphere of Venus has measured the chemistry or the environment with the detail that the DAVINCI spacecraft can do,” Garvin said. “In addition, no previous Venus mission has landed on the highlands of Venus, and none have taken pictures of Venus’ surface descent. DAVINCI will be based on what the Huygens spacecraft did on Titan and will improve what they have done. previous Venus field missions, but with 21st century capabilities and sensors “.
Reference: “Revealing the Mysteries of Venus: The DAVINCI Mission” by James B. Garvin, Stephanie A. Getty, Giada N. Arney, Natasha M. Johnson, Erika Kohler, Kenneth O. Schwer, Michael Sekerak, Arlin Bartels, Richard S Saylor, Vincent E. Elliott, May 24, 2022, The Planetary Science Journal.DOI: 10.3847 / PSJ / ac63c2
NASA Goddard is DAVINCI’s leading research institution and will conduct project management for the mission, provide scientific instruments and project systems engineering to develop the spacecraft’s flight system. Goddard also leads the project’s scientific support team with an external scientific team from across the United States. Discovery program class missions such as DAVINCI complement NASA’s largest planetary science explorations, with the goal of achieving exceptional results by launching smaller missions with fewer resources and shorter development times. They are managed for NASA’s Planetary Science Division by the Marshall Space Flight Center’s Planetary Mission Program Office in Huntsville, Alabama.
DAVINCI’s main partners are Lockheed Martin, Denver, Colorado, The Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, NASA’s Jet Propulsion Laboratory, Pasadena, California, Malin Space Science Systems, San Diego, California, Langley Research Center NASA, Hampton, Virginia, NASA’s Ames Research Center at Moffett Federal Airfield in Silicon Valley, California, and KinetX, Inc., Tempe, Arizona, as well as the University of Michigan at Ann Arbor.