Nasa reveals plan to send spacecraft into the upper atmosphere of the Sun

Nasa reveals plan to send spacecraft into the upper atmosphere of the Sun

Nasa reveals plan to send spacecraft into the upper atmosphere of the Sun

0 comments 📅09 April 2015, 04:10

Nasa has finalised an ambitious mission to send a spacecraft closer to the sun than ever before.

The Solar Probe Plus will carry four experiments into the corona and study the solar wind and energetic particles as they blast off the surface of the star

During the closest passes around the sun, temperatures outside the spacecraft will reach nearly 2,500 degrees Fahrenheit.

Solar Probe Plus is scheduled to launch aboard a United Launch Alliance Delta 4-Heavy rocket with an upper stage from Cape Canaveral Air Force Station, Florida.

The launch window opens for 20 days starting on July 31, 2018.

Over 24 orbits, the mission will use seven flybys of Venus to reduce its distance from the sun.

The closest three will be just 3.8 million miles from the surface of the star.

Scientists have long wanted to send a probe through the sun’s outer atmosphere, or corona, to better understand the solar wind and the material it carries into our solar system.

The primary science goals for the Solar Probe Plus mission are to trace the flow of energy and understand the heating of the solar corona and to explore the physical mechanisms that accelerate the solar wind and energetic particles.

To meet those objectives, Solar Probe Plus will carry four instrument suites into the corona and study the solar wind and energetic particles as they blast off the surface of the star.

These instruments will study magnetic fields, plasma, and energetic particles, and will image the solar wind.

The spacecraft and instruments will be protected from the sun’s heat by a 4.5-inch-thick carbon-composite shield.

During the closest passes around the sun, temperatures outside the spacecraft will reach nearly 2,500 degrees Fahrenheit.

The small car-sized spacecraft will plunge directly into the sun’s atmosphere approximately four million miles from our star’s surface.

It will explore a region no other spacecraft ever has encountered.

The mission – which will fly closer to the sun than any spacecraft has before – reached a major milestone last month when it successfully completed its Critical Design Review, or CDR.

An independent NASA review board met at the Johns Hopkins University Applied Physics Laboratory, or APL, in Laurel, Maryland, March 16-20, 2015, to review all aspects of the mission plan.

APL has designed and will build and operate the spacecraft for NASA.

The CDR certifies that the Solar Probe Plus mission design is at an advanced stage and that fabrication, assembly, integration and testing of the many elements of the mission may proceed.

Credit: http://www.dailymail.co.uk/