JAIPUR: Nasa's MAVEN (Mars Atmosphere and Volatile Evolution Mission) spacecraft, which has been orbiting Mars since 2014, has been gathering knowledge that may permit scientists to grasp changes within the higher atmosphere of the Red Planet. It is understood that Mars, billions of years in the past, had atmosphere and water and will have supported existence. It is now barren and cold.
What Mars now has is a skinny atmosphere - and even that is in peril, say scientists who've came upon that the planet has a twisted tail. The procedure that created this tail could also permit a few of Mars' already skinny atmosphere to escape to space, researchers mentioned on science news website online Science Daily.
At a press briefing on October 19 at Utah all the way through the once a year assembly of the America Astronomical Society's Division for Planetary Sciences, Gina DiBraccio of Nasa's Goddard Space Flight Centre in Maryland, mentioned, "We found that Mars' magnetic tail, or magnetotail, is unique in the solar system. It's not like the magnetotail found at Venus, a planet with no magnetic field of its own, nor is it like Earth's, which is surrounded by its own internally generated magnetic field. Instead, it is a hybrid between the two."
Science Daily reported: "The team found that a process called "magnetic reconnection" must have a big role in creating the Martian magnetotail because, if reconnection were occurring, it would put the twist in the tail."
A model the scientists built prompt that such reconnection would cause the planet's tail to curve 45 levels from what is expected, in response to the path of the magnetic box carried by means of the solar wind, the scientist defined. The model was found to lend a hand with readings in response to MAVEN knowledge.
"Mars lost its global magnetic field billions of years ago and now just has remnant 'fossil' magnetic fields embedded in certain regions of its surface. According to the new work, Mars' magnetotail is formed when magnetic fields carried by the solar wind join with the magnetic fields embedded in the Martian surface in a process called magnetic reconnection. The solar wind is a stream of electrically conducting gas continuously blowing from the Sun's surface into space at about one million miles (1.6 million kilometers) per hour. It carries magnetic fields from the Sun with it. If the solar wind field happens to be oriented in the opposite direction to a field in the Martian surface, the two fields join together in magnetic reconnection," Science Daily defined, including that such reconnection might propel one of the vital atmosphere of Mars into space.
Mars' higher atmosphere has electrically charged particles (ions), which reply to electric and magnetic forces and drift alongside magnetic box traces, the website online defined. "Since the Martian magnetotail is formed by linking surface magnetic fields to solar wind fields, ions in the Martian upper atmosphere have a pathway to space if they flow down the magnetotail. Like a stretched rubber band suddenly snapping to a new shape, magnetic reconnection also releases energy, which could actively propel ions in the Martian atmosphere down the magnetotail into space."
The website online mentioned magnetic fields are invisible however their path and energy may also be measured by means of the magnetometer tool on MAVEN.
What Mars now has is a skinny atmosphere - and even that is in peril, say scientists who've came upon that the planet has a twisted tail. The procedure that created this tail could also permit a few of Mars' already skinny atmosphere to escape to space, researchers mentioned on science news website online Science Daily.
At a press briefing on October 19 at Utah all the way through the once a year assembly of the America Astronomical Society's Division for Planetary Sciences, Gina DiBraccio of Nasa's Goddard Space Flight Centre in Maryland, mentioned, "We found that Mars' magnetic tail, or magnetotail, is unique in the solar system. It's not like the magnetotail found at Venus, a planet with no magnetic field of its own, nor is it like Earth's, which is surrounded by its own internally generated magnetic field. Instead, it is a hybrid between the two."
Science Daily reported: "The team found that a process called "magnetic reconnection" must have a big role in creating the Martian magnetotail because, if reconnection were occurring, it would put the twist in the tail."
A model the scientists built prompt that such reconnection would cause the planet's tail to curve 45 levels from what is expected, in response to the path of the magnetic box carried by means of the solar wind, the scientist defined. The model was found to lend a hand with readings in response to MAVEN knowledge.
"Mars lost its global magnetic field billions of years ago and now just has remnant 'fossil' magnetic fields embedded in certain regions of its surface. According to the new work, Mars' magnetotail is formed when magnetic fields carried by the solar wind join with the magnetic fields embedded in the Martian surface in a process called magnetic reconnection. The solar wind is a stream of electrically conducting gas continuously blowing from the Sun's surface into space at about one million miles (1.6 million kilometers) per hour. It carries magnetic fields from the Sun with it. If the solar wind field happens to be oriented in the opposite direction to a field in the Martian surface, the two fields join together in magnetic reconnection," Science Daily defined, including that such reconnection might propel one of the vital atmosphere of Mars into space.
Mars' higher atmosphere has electrically charged particles (ions), which reply to electric and magnetic forces and drift alongside magnetic box traces, the website online defined. "Since the Martian magnetotail is formed by linking surface magnetic fields to solar wind fields, ions in the Martian upper atmosphere have a pathway to space if they flow down the magnetotail. Like a stretched rubber band suddenly snapping to a new shape, magnetic reconnection also releases energy, which could actively propel ions in the Martian atmosphere down the magnetotail into space."
The website online mentioned magnetic fields are invisible however their path and energy may also be measured by means of the magnetometer tool on MAVEN.
Mars has twisted magnetic ‘tail’: Scientists
![Mars has twisted magnetic ‘tail’: Scientists]()
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October 22, 2017
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