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Science-Technology
See other Science-Technology Articles

Title: NASA explains why its insane mission to ‘Touch the Sun’ won’t end in catastrophe
Source: [None]
URL Source: https://start.att.net/news/read/cat ... mission_to_touch_the-rpenskemc
Published: Jul 25, 2018
Author: BGR
Post Date: 2018-07-25 13:47:32 by Justified
Keywords: None
Views: 391
Comments: 6

NASA is going to send a spacecraft to the Sun. That, on its own, is pretty wild, but the fact that scientists plan on the Parker Solar Probe spending seven years orbiting our star, constantly gathering data and relaying observations back to Earth, is a whole other level of insane. Now, NASA has taken the time to explain how the probe will prevent itself from dying an early death.

The probe, which is slated to launch in August, is going to get closer to the Sun than any spacecraft ever has, coming within 3.9 million miles of the star on its closest approach. That sounds like a huge distance, but it’s actually very, very close when you’re talking about something as big as the Sun. At that distance, temperatures are hot enough to melt solid steel, but NASA has a plan for keeping the probe cool.

As we’ve already seen, the probe is equipped with a thick heat shield that will always be pointed towards the Sun as the spacecraft cruises through its orbit. The shield is several inches thick and is made mostly of carbon that has been superheated. According to NASA, the shield should be more than enough to keep the probe at a very comfortable 85 degrees Fahrenheit even in the face of the Sun’s intense rays.

In a new video, NASA talks about the tools that the probe is equipped with that will keep it correctly aligned so as not to expose its delicate instruments to the Sun’s heat. A series of “solar limb sensors” are constantly keeping an eye for the harsh light from the star, and if one of them detects it is being hit with light, it will adjust the probe so that the spacecraft is pointing its heat shield perfectly at the Sun.

The Parker Solar Probe will venture to the Sun’s corona, which is hot but not particularly dense. That allows the probe remain cool so long as its shield is oriented. If, by some error, the probe were to accidentally orient itself sideways, things would go south in a hurry, but the spacecraft is designed to prevent that from happening at all costs.

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#1. To: All (#0)

This is what pisses me off about the Regressives is that we spend so much time fighting leftist wars of nonsense that we could have been 20 years farther down the line with technology!

The moment man is no longer needed to physically do the work then we can start thinking about what to do as a society. This will be the real payoff off for humanity. But no the asshats far left commie bitches just have to ruin everything they touch!

Regressives and their tower of Babel is ruining the world!

Justified  posted on  2018-07-25   13:56:59 ET  Reply   Trace   Private Reply  


#2. To: Justified (#0)

IMO the heat shield should be 360 degrees all the way around, and they should figure out a way to make the craft rotate like a rotisserie so it's not constantly exposed to the heat on one side.

Hondo68  posted on  2018-07-25   14:04:29 ET  Reply   Trace   Private Reply  


#3. To: hondo68 (#2)

There may be more to the test than they are telling us. I would think if they have the ability to protect one side and use the sensors then they should be able to protect the whole thing.

What has struck me is much as I know about heat if its 10K Fahrenheit in front of the shield would it not be the same on the other sides too?

Justified  posted on  2018-07-25   16:21:36 ET  Reply   Trace   Private Reply  


#4. To: Justified (#0)

that will keep it correctly aligned so as not to expose its delicate instruments to the Sun’s heat.

If the instruments are not exposed, how do they collect data?

misterwhite  posted on  2018-07-25   16:23:39 ET  Reply   Trace   Private Reply  


#5. To: Justified (#3)

What has struck me is much as I know about heat if its 10K Fahrenheit in front of the shield would it not be the same on the other sides too?

In general yes, but they need to protect against flare ups which could be much more but of limited duration. That's my guess, I'm no expert. It's probably slightly cooler on the far side of any object. If you turn your back to a campfire, you feel less heat on your face. It's cooler.

Hondo68  posted on  2018-07-25   16:41:16 ET  Reply   Trace   Private Reply  


#6. To: Justified (#0)

NASA explains why its insane mission to ‘Touch the Sun’ won’t end in catastrophe

Duh!.... Just send it at night time.

Pinguinite  posted on  2018-07-26   9:19:57 ET  Reply   Trace   Private Reply  


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