NASA's Jet Propulsion Laboratory
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NASA – Logo – National Aerospace Authority
"data-medium-file =" http://www.clarksvilleonline.com/wp-content/uploads/2011/08/NASA.jpg "data-large-file =" http://www.clarksvilleonline.com/wp -content / uploads / 2011/08 / NASA.jpg "class =" alignleft size-full wp-image-85503 "title =" NASA – National Aerospace Authority "src =" http://www.clarksvilleonline.com/ wp-content / uploads / 2011/08 / NASA.jpg "alt =" NASA – National Aerospace Authority "width =" 200 "height =" 165 "/> Pasadena, CA – Ambitious climbers, Forget the Mt. Everest Dream about Mars
The Red Planet has some of the highest mountains in the solar system, including the Olympus Mons, a volcano almost three times the size of Everest, bordering a region called the Tharsis Where three equally awesome volcanoes dominate the landscape.
But what geological processes have created these features on the Martian surface? Scientists have been searching for a long time gt – and may soon know more.
NASA and DLR (German Aerospace Center) want to measure the temperature of the planet for the first time, measure how heat comes from the planet flows out and drives this inspirational geology. 19659007] The discovery of this escaping heat will be a critical part of a mission called InSight (seismic exploration, geodesy, and heat transport indoor exploration) conducted by NASA's Jet Propulsion Laboratory in Pasadena, California.
InSight will be the first mission Examine the deep interior of Mars and use the Heat Flow and Physical Properties Package (HP3) to measure the heat that passes from the interior to the planet's surface. This energy was partially taken when Mars emerged more than 4 billion years ago, and documented its formation. This energy is also due to the decay of radioactive elements in the rocky interior.
The way heat moves through the mantle and crust of a planet determines what surface properties it will have, said Sue Smrekar of JPL, Deputy Chief Researcher of the Mission Deputy Chief of HP3
"The Greatest Part of the geology of the planet is a result of heat, "said Smrekar. "Volcanic eruptions in the past have been fueled by the flow of heat that shoots and builds the mountains Mars is famous for."
A Mole for Mars
Scientists have modeled the internal structure of Mars, InSight will provide the first opportunity to find the basic truth – by literally looking underground.
HP3, built and built by DLR, will be placed on the surface of Mars after InSight landed on November 26, 2018. It will beat up the ground, bury itself and drag a rope behind it. Temperature sensors embedded in this band measure the natural internal heat of Mars.
That's not an easy task. The mole must dig deep enough to escape the large temperature fluctuations of the Martian surface. The "body heat" of the spacecraft could also affect the highly sensitive measurements of HP3.
"If the birthmark sticks higher than expected, we can still measure the temperature fluctuations," said HP3 investigator Tilman Spohn from DLR. "Our data will be more noisy, but we can deduct daily and seasonal weather variations by comparing them to ground temperature measurements."
In addition to digging, the mole releases heat pulses. Scientists will investigate how quickly the mole warms the surrounding rock and allows them to find out how well the heat is conducted from the rock at the landing site. Densely packed grains conduct heat better – an important part of the equation for determining the internal energy of Mars.
simmer a new planet let
Imagine an example of a planetary heat flow in front, like a pot of water on a stove is [19659007WennsichWassererwärmtdehntessichauswirdwenigerdichtundsteigtaufDaskühleredichtereWassersinktaufdenBodenwoessichaufheiztDieserWechselvonkühlzuheißwirdKonvektiongenanntDasgleichegeschiehtineinemPlanetenderMillionenJahrelangdenFelsinsichaufwirbelt
Just as expanding bubbles can repel a pot lid, are volcanoes from the top a world blown away. They form the surface of a planet. Most of the atmosphere on rocky planets forms when volcanoes eject gas from deeper depths. It is believed that some of Mars' largest dry riverbeds formed when the Tharsis volcanoes spewed gas into the atmosphere. This gas contained water vapor that had cooled to liquid and possibly formed the channels around Tharsis.
The smaller the planet, the faster it loses its original warmth. Since Mars is only one-third the size of Earth, most of the heat was lost early in its history. Most of Mars' geological activity, including volcanism, took place in the first billion years of the planet.
"We want to know what drove the early volcanism and climate change on Mars," Spohn said. How much heat did Mars have left, how much was left to fuel its volcanism?
The NASA orbiter has given the scientists a "macro" view of the planet, allowing them to study the geology of Mars to study above. HP3 offers a first view of the interior of Mars.
[320rihgt] "Planets are like a motor driven by heat that moves their inner parts," Smrekar said. "With HP3 we will lift the hood of Mars for the first time."
What scientists learn during the InSight mission is not just for Mars. It will teach them how all the rocky planets formed – including the earth, their moon, and even planets in other solar systems.
For more information about InSight, please visit:
JPL, a division of Caltech in Pasadena, California, manages InSight for NASA Directorate for Scientific Mission in Washington. InSight is part of NASA's Discovery Program, which is managed by the agency's Marshall Space Flight Center in Huntsville, Alabama. The InSight spacecraft, including Cruise Ship and Lander, was built and tested by Lockheed Martin Space in Denver.
Atmosphere, Caltech, Huntsville AL, Mars, NASA, NASA Discovery Program, NASA InSight Mars Lander, NASA Jet Propulsion Laboratory, NASA Marshall Space Flight Center, NASA Science Mission Directorate, NASA, Olympus Mons, Pasadena CA, Red Planet, Solar System, Washington DC