It promises to be a remarkable moment in the history of space exploration.
A year from now, on 24 December, Nasa’s Parker Solar Probe will race past the Sun at the astonishing speed of 195 km/s, or 435,000 mph.
No human-made object will have moved so fast nor, indeed, got so close to our star - just 6.1 million km, or 3.8 million miles from the Sun’s “surface”.
“We are basically almost landing on a star,” said Parker project scientist Dr Nour Raouafi.
“This will be a monumental achievement for all humanity. This is equivalent to the Moon landing of 1969,” the Johns Hopkins University Applied Physics Laboratory scientist told BBC News.
They used sapphire crystals to insulate the electrical cables in the sensors because anything cheaper would melt. There is a lot of amazing engineering that went into it.
https://www.nasa.gov/solar-system/traveling-to-the-sun-why-wont-parker-solar-probe-melt/