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(.#475).- Parker Solar Probe, NASA offers you to touch the Sun.
Parker Solar Probe, NASA offers you to touch the Sun.
Article by Laurent Sacco
Published on 03/15/2018
Archives
The Parker Solar Probe mission will allow a NASA probe to penetrate the solar corona about 6 million kilometers from its photosphere during the 2020s. Intended to uncover the secrets of the Sun to predict its anger, it will carry the names of the Internet users who would have liked it.
"To boldly go where no man has gone before!" (Go boldly where no Man has gone before!), This cult sentence of the credits of the first season of Star Trek undoubtedly comes to mind in front of the Parker Solar Probe mission that Nasa should launch this summer. Unless it rather inspires a rapprochement with the film Sunshine by Danny Boyle. In 2057, while the Sun is dying, humanity is trying to restart it by sending a thermonuclear charge to its heart aboard a manned mission which will lead the crew to approach the surface of the planet like never before. Sun.
VIDÉO YOUTUBE :
Sunshine ( bande annonce VF )
The trailer for the film Sunshine by Danny Boyle. © 20th Century Fox International, Fox Searchlight Pictures, YouTube
The goal of the Parker Solar Probe mission is less grandiose but it remains spectacular because it consists in sending a probe so that it is put in orbits around the Sun by using the phenomenon of gravitational assistance of Venus to penetrate sometimes until only 6 million kilometers from our star at the perihelions of its orbits and most of the time within 20 million kilometers. The use of Venus is necessary for the success of the mission because the Sun's field of gravity is so intense at these distances that changes in orbit would be too fuel-hungry.
Parker Solar Probe will take your name into the solar corona
By approaching as close to the Sun, the probe must be able to withstand temperatures of the order of 1,600 Kelvin, which will be possible thanks to a carbon-based shield, a technology similar to that of carbon fiber materials (Carbon Fiber Composite, in English, or CFC), developed for a long time for aeronautics and experiments on controlled fusion with tokamaks.
Parker Solar Probe will then be able to study in situ the outermost part of the solar corona and a little beyond, when the heliosphere begins. Its information should make it possible to better understand the famous problem of the heating of the solar corona as well as the origin of the solar wind and solar flares. The new knowledge that the mission will provide should therefore be useful for the constitution of a solar meteorology, vital to preserve the technology of humanity from the Sun's angers as well as the settlers in interplanetary transit bound for future Martian and lunar colonies.
NASA has just announced that at the time of the global village anticipated by Arthur Clarke, any member of humanity with access to an Internet connection could somehow board the Parker Solar Probe to graze the Sun. The adventure does not expose to the dangers faced by the heroes of Sunshine because it is only a question of registering his name on a chip which will be placed on board the probe!
So if you are ready to “boldly go where no man has gone before” and do so before April 27, 2018, register!
Parker Solar Probe, the NASA probe that will graze the Sun
Futura article with AFP Washington
Published on 06/06/2017
Archives
The Solar Probe Plus probe, renamed Parker Solar Probe, named after a living astronomer - this is a first - will be launched in July 2018. After more than six years of travel, and using Venus to accelerate, it s will install in a very elliptical orbit around the Sun. In 2024, it will approach it only 6.2 million kilometers. Scientific issues are important to better understand our star and his anger.
In 2018, NASA will launch a probe, initially named Solar Probe Plus, which will dive into the atmosphere of the Sun to better understand its dynamics and the origin of the solar winds touching the Earth and other planets. The spacecraft has just received its baptismal name: Parker Solar Probe. It will be the first spacecraft to come so close to our star, at 6.2 million kilometers only, or seven times closer than the Helios 2 probe, in 1976, which had remained at 43.4 million kilometers.
"This mission will answer very simple questions such as why the solar corona is hotter than the surface of the sun, which defies the laws of nature," says Nicola Fox, the scientific director of the mission at the Laboratory of Applied Physics from Johns Hopkins University, Maryland. In places, in fact, the solar corona can reach two million degrees, while the temperature on the surface of our star does not exceed 5.800 degrees.
"Or why, in this part of the atmosphere of the sun, suddenly form charges of energy which escape the attraction of the star and will hit the planets", continues the scientist. To protect against temperatures of around 1,400 ° C, the vessel will be equipped with a thermal protection made of 11.4 cm thick carbon composite, allowing to maintain a temperature of 15 to 25 ° C inside.
Solar Orbiter: a probe close to the Sun designed by Airbus DS
Astrophysicist Eugene Parker, a great Sun specialist, honored during his lifetime by the baptismal name of the space probe which will approach it like never before. © Scott Olson, Getty Images North America, AFP
Parker Solar Probe probe to better predict solar flares
The 610 kg spacecraft will be launched by a Delta IV Heavy rocket, from the United Launch Alliance, from the Kennedy Space Center in Florida during a twenty-day firing window that will open on July 31, 2018. It it will take almost seven years for the probe to arrive at its destination, after having flown over Venus seven times to gradually reduce its orbit around the sun. In its elliptical heliocentric orbit, it will approach as close to the Sun in 2024.
The probe, the size of a small car and equipped with four instruments, will collect data on the thermal mechanism which heats the crown of the Sun and which accelerates the solar wind, a constant flow of ionized particles at more than 500 km / s . These observations should help improve the prediction of solar flares that affect terrestrial activities such as the functioning of satellites and the safety of astronauts in space.
During the closest overflight, the probe, accelerated by strong solar gravity, will reach the maximum speed of 194 km / s, or 700,000 km / h (relative to the Sun), a speed sufficient to cover the distance from Earth to Moon in just over 30 mins. The spacecraft will then be the fastest in all of space history. The Helios 2 probe, also launched towards the Sun in a very elliptical orbit, had reached 70.22 km / s (252.792 km / h). Leaving in the opposite direction, New Horizons had started its journey towards Pluto at 45 km / s (relative to the Sun), a record also for a spacecraft braked by solar gravity.
F I N .
Parker Solar Probe, NASA offers you to touch the Sun.
Article by Laurent Sacco
Published on 03/15/2018
Archives
The Parker Solar Probe mission will allow a NASA probe to penetrate the solar corona about 6 million kilometers from its photosphere during the 2020s. Intended to uncover the secrets of the Sun to predict its anger, it will carry the names of the Internet users who would have liked it.
"To boldly go where no man has gone before!" (Go boldly where no Man has gone before!), This cult sentence of the credits of the first season of Star Trek undoubtedly comes to mind in front of the Parker Solar Probe mission that Nasa should launch this summer. Unless it rather inspires a rapprochement with the film Sunshine by Danny Boyle. In 2057, while the Sun is dying, humanity is trying to restart it by sending a thermonuclear charge to its heart aboard a manned mission which will lead the crew to approach the surface of the planet like never before. Sun.
VIDÉO YOUTUBE :
Sunshine ( bande annonce VF )
The trailer for the film Sunshine by Danny Boyle. © 20th Century Fox International, Fox Searchlight Pictures, YouTube
The goal of the Parker Solar Probe mission is less grandiose but it remains spectacular because it consists in sending a probe so that it is put in orbits around the Sun by using the phenomenon of gravitational assistance of Venus to penetrate sometimes until only 6 million kilometers from our star at the perihelions of its orbits and most of the time within 20 million kilometers. The use of Venus is necessary for the success of the mission because the Sun's field of gravity is so intense at these distances that changes in orbit would be too fuel-hungry.
Parker Solar Probe will take your name into the solar corona
By approaching as close to the Sun, the probe must be able to withstand temperatures of the order of 1,600 Kelvin, which will be possible thanks to a carbon-based shield, a technology similar to that of carbon fiber materials (Carbon Fiber Composite, in English, or CFC), developed for a long time for aeronautics and experiments on controlled fusion with tokamaks.
Parker Solar Probe will then be able to study in situ the outermost part of the solar corona and a little beyond, when the heliosphere begins. Its information should make it possible to better understand the famous problem of the heating of the solar corona as well as the origin of the solar wind and solar flares. The new knowledge that the mission will provide should therefore be useful for the constitution of a solar meteorology, vital to preserve the technology of humanity from the Sun's angers as well as the settlers in interplanetary transit bound for future Martian and lunar colonies.
NASA has just announced that at the time of the global village anticipated by Arthur Clarke, any member of humanity with access to an Internet connection could somehow board the Parker Solar Probe to graze the Sun. The adventure does not expose to the dangers faced by the heroes of Sunshine because it is only a question of registering his name on a chip which will be placed on board the probe!
So if you are ready to “boldly go where no man has gone before” and do so before April 27, 2018, register!
Parker Solar Probe, the NASA probe that will graze the Sun
Futura article with AFP Washington
Published on 06/06/2017
Archives
The Solar Probe Plus probe, renamed Parker Solar Probe, named after a living astronomer - this is a first - will be launched in July 2018. After more than six years of travel, and using Venus to accelerate, it s will install in a very elliptical orbit around the Sun. In 2024, it will approach it only 6.2 million kilometers. Scientific issues are important to better understand our star and his anger.
In 2018, NASA will launch a probe, initially named Solar Probe Plus, which will dive into the atmosphere of the Sun to better understand its dynamics and the origin of the solar winds touching the Earth and other planets. The spacecraft has just received its baptismal name: Parker Solar Probe. It will be the first spacecraft to come so close to our star, at 6.2 million kilometers only, or seven times closer than the Helios 2 probe, in 1976, which had remained at 43.4 million kilometers.
"This mission will answer very simple questions such as why the solar corona is hotter than the surface of the sun, which defies the laws of nature," says Nicola Fox, the scientific director of the mission at the Laboratory of Applied Physics from Johns Hopkins University, Maryland. In places, in fact, the solar corona can reach two million degrees, while the temperature on the surface of our star does not exceed 5.800 degrees.
"Or why, in this part of the atmosphere of the sun, suddenly form charges of energy which escape the attraction of the star and will hit the planets", continues the scientist. To protect against temperatures of around 1,400 ° C, the vessel will be equipped with a thermal protection made of 11.4 cm thick carbon composite, allowing to maintain a temperature of 15 to 25 ° C inside.
Solar Orbiter: a probe close to the Sun designed by Airbus DS
Astrophysicist Eugene Parker, a great Sun specialist, honored during his lifetime by the baptismal name of the space probe which will approach it like never before. © Scott Olson, Getty Images North America, AFP
Parker Solar Probe probe to better predict solar flares
The 610 kg spacecraft will be launched by a Delta IV Heavy rocket, from the United Launch Alliance, from the Kennedy Space Center in Florida during a twenty-day firing window that will open on July 31, 2018. It it will take almost seven years for the probe to arrive at its destination, after having flown over Venus seven times to gradually reduce its orbit around the sun. In its elliptical heliocentric orbit, it will approach as close to the Sun in 2024.
The probe, the size of a small car and equipped with four instruments, will collect data on the thermal mechanism which heats the crown of the Sun and which accelerates the solar wind, a constant flow of ionized particles at more than 500 km / s . These observations should help improve the prediction of solar flares that affect terrestrial activities such as the functioning of satellites and the safety of astronauts in space.
During the closest overflight, the probe, accelerated by strong solar gravity, will reach the maximum speed of 194 km / s, or 700,000 km / h (relative to the Sun), a speed sufficient to cover the distance from Earth to Moon in just over 30 mins. The spacecraft will then be the fastest in all of space history. The Helios 2 probe, also launched towards the Sun in a very elliptical orbit, had reached 70.22 km / s (252.792 km / h). Leaving in the opposite direction, New Horizons had started its journey towards Pluto at 45 km / s (relative to the Sun), a record also for a spacecraft braked by solar gravity.
F I N .
