NASA has postponed the launch of a probe to the Sun: the cause

NASA отложило запуск зонда к Солнцу: названа причина

Launch into space a new mission to study the Sun Solar Probe Parker postponed for a day.The launch was postponed due to anomalies in the readings of the sensors of the helium pressure in the tanks of the launch vehicle Delta IV Heavy. Stream preparation for the launch was conducted at the National aerospace Agency (NASA), reports the with reference on the most Important.

Probe Parker was developed in 2008. It received its name in honor of the American astronomer Eugene Parker who in 1958 published an article that predicted the presence of a solar wind stream vysokoaromatichnyj of charged particles continuously emitted by the Sun. Subsequently his prediction was confirmed. In addition, the physicist made a number of assumptions about the dynamics of solar plasma and the nature of the anomalous heating of the corona and on the processes occurring in the heliosphere.

The plan process closer to the Sun will last seven years – with each orbit of (24), the device will be a nearer approach to the sun. The first will be passed perihelion on November 1, at the distance of 35 solar radii (about 24 million kilometers) from the star. Then, after a series of seven gravitational maneuvers near Venus, the unit gets closer to the Sun to a distance of about 9-10 solar radii (about six million kilometers) – it will happen in mid-December 2024. It is seven times closer than the perihelion of mercury’s orbit and one spacecraft was not nearly close to the Sun (the current record belongs to camera Helios-B, which was approaching the star at 43.5 million miles). The probe will be located in extreme conditions, including heat and impact of charged particles and radiation from the star. To function properly near the Sun, the probe is equipped with a thermal shield, operating as a “umbrella” under which to hide all of the scientific instruments, and cooling system. In addition, many structural elements and scientific instruments made using high-temperature materials.

The objectives of the probe will be measuring the main characteristics of the solar wind and solar atmosphere along its trajectory, the study of electromagnetic fields in the vicinity of the Sun and the processes taking place in its outer layers.

In addition to the scientific equipment on Board the probe is another subject. This is the chip containing 1.2 million names of people who submitted their applications electronically, as well as photographs of Eugene Parker and a copy of his scientific articles from 1958, dedicated to the solar wind.

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