Sunday, 21 October, 2018

Nasa prepares daring mission to 'touch the Sun'

This rendering demonstrates the anticipated approach of the Parker Solar Probe to the sun’s atmosphere Nasa prepares daring mission to 'touch the Sun'
Kristen Harrington | 10 August, 2018, 14:19

Of all matter in the Solar System, about 99.8 percent of it is all concentrated at the Sun.

NASA is close to launching a spacecraft on a voyage to the sun that will give scientists their closest-ever view of the star.

"According to a statement from Nasa, the probe is due to orbit within six-and-a-half million kilometres of the Sun's "surface", where the probe will "(face) heat and radiation unlike any spacecraft in history".

U.S. to impose sanctions on Russian Federation over nerve attack in UK
The new USA sanctions would cover sensitive national-security controlled goods, a senior State Department official told reporters. The announcement of U.S. sanctions caused the value of the rouble to plunge early on Thursday and Russian stock markets to fall.

On each close approach to the sun, the probe will sample the solar wind, study the sun's corona, and provide close-up observations from around the star. NASA is tackling this challenge to facilitate the Parker Solar Probe's mission to the Sun's atmosphere. Earth is kept from falling into the Sun and burning up because of this effect as well.

The only way to reach the Sun with a probe or satellite is to cancel that sideways motion.

So apart from using a powerful rocket-the Delta IV Heavy-Parker Solar Probe will have to perform a total of seven gravity assisted manoeuvres at Venus over its mission.

Lawyer: OSU hasn't contacted Courtney Smith
Meyer added that there were "more questions to be answered" and he pledged to "cooperate fully" with investigators hired by OSU. In the meantime, a "Save Urban Meyer " petition posted Thursday at Change.org has almost reached its goal of 25,000 signatures.

This is a phenomenon that has baffled NASA scientists because the sun's atmosphere "gets much, much hotter the farther it stretches from the sun's blazing surface". It will take about seven years to shed all that sideways speed into Venus' well of orbital energy, notes NASA. The insane speed will mean the Parker Solar Probe will break the record and become the fastest-ever human-made object reaching an astonishing 430,000 miles per hour during its final orbits.

The US space agency launches its Parker Solar Probe on Saturday, which will travel closer to the Sun than any mission before, to unlock the secrets of fierce radioactive storms which threaten Earth.

Opposition to Israel nation-state law grows
The wave of criticism piles pressure on Prime Minister Benjamin Netanyahu, who is already beset by corruption allegations. There is a consensus about these values", Shaked told Army Radio.

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