How Long Would It Take Us To Go To Neptune?

Have we only gone once?
Although it sounds hard to believe, the ice giant Neptune has only been visited by a single spacecraft in all of human history, and that spacecraft was the Voyager 2 probe, which passed close to Neptune's orbit in 1989.
The Voyager 2 probe was part of the Voyager mission, which consisted of two space exploration probes, Voyager 1 and Voyager 2, whose main objective was to study the outer planets, about which, until then, very little was known.

The only way to travel without fuel
Gravity assist is a space maneuver in which a ship uses a planet's gravity to change its speed and direction. Used in missions such as Voyager, it saves fuel and accelerates spaceships to speeds that they would never reach with conventional fuel to reach their objectives in less time.

Voyager 2 Voyage
Voyager 2 was launched in 1977 and undertook an epic journey through the outer solar system. It used gravity assistance from Jupiter and Saturn during its journey to head towards more distant planets. In August 1989, after more than a decade of journey, Voyager 2 approached Neptune, becoming the first and only spacecraft to explore this planet up close.

Orbital Velocity
To better explain this, imagine a car race; in car races, all the cars go at extremely high speeds, and although each car moves at a different speed, they all go so fast that if one of the drivers were to brake suddenly, At the moment of pressing the brake pedal, it would not stay in the place where it braked, but would advance several tens of meters until it braked completely.
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DISCUSSIONS & SOCIAL MEDIA

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00:00 Intro
00:46 Have we only gone once?
01:52 The only way to travel without fuel
03:48 Voyager 2 Voyage
05:22 Orbital Velocity
07:40 Braking is not so easy in space
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#insanecuriosity #neptune #journeytoneptune

[InsaneCuriosity]

Hey guys! If you liked the video, we would love for you to share it on social networks like Facebook, Reddit, Instagram, Tik Tok and Twitter.(Since the algorithm is not helping us in terms of views).
You will greatly help the Insane Curiosity community to grow and improve more and more our upcoming content. A big thank you from all of us.

[Brand-usuo]

I am continually in awe at what scientists in the 60s and 70s were able to accomplish. It feels like the whole world has stagnated since.

[horizonbrave]

Neptune is by far my favorite planet..so I will gladly take my final journey there when I'm like 90!

[StevenEveral]

I think it would be a great idea to send a Cassini/Galileo class spacecraft to explore Neptune and Triton. Although most proposals I have read about potential spacecraft to Neptune all involve entering Neptune's orbit in retrograde to allow detailed exploration of Triton.
Fun fact about Neptune: It has only completed one orbit since its discovery in 1846. It completed its first orbit since discovery in July 2011.

[beardedgamerdrew]

Idc what anyone says, Pluto IS a planet

[bojandolinar]

If you can find a scale model of a Solar System in the vicinity, do yourself a favor and visit it. I ran into one just by chance. It was a 1 to 1 billion scale model, meaning that Earth was the size of a marble and Sun was 1.4 meters in diameter on a low platform. The inner solar system fitted nicely on a medium-sized meadow, Earth was 150 meters from the Sun. Around the Earth, there was a board the length of the distance Earth makes in one day, 2.6 meters. The Moon nearby was also in scale. This one alone surprises many, since Moon is much farther away than most people would have guessed.

Ironically, the first piece of this model I saw was Neptune. It was a blue ball, 5cm in diameter, roughly the size of an egg. I set out to find the Sun and even with a bicycle it was quite a trip. Consider this: every meter I made would be 1 million kilometers. I had to pass two villages to get to the center.

I studied astronomy and knew the scales well, but the model blew my mind.

[richardstephens]

There's no good reason to send humans that deep into space. The best option would be to send more advanced probes, Voyager 2 had 1977 technology.

[ouwebrood]

A mistake: humans feel weightless during a gravity assist. They just follow the same hyperbolic orbit as the spaceship.
Fascinating vid though.

[Bk]

Finally, a video that realizes, hey, once we reach somewhere, how will we apply the brakes??

[johnmorelli]

Gas giant (nothing to land on), -353F, receives 0.1% of the sunlight that Earth does - robots only!

[dcaseng]

The size of the solar system is deceptive because of all the models and illustrations you see from the moment you start going to 1st grade. It gives you a false sense that all the planets are much closer than they really are.
In actuality, the solar system is incredibly far reaching.

[sourabhkarmakar]

Of course space technology has to change a lot.

[TJsVette]

In my lifetime we will never know what really lies on other planets. It's such an amazing thing to be curious about but sucks at the same time

[bringyourownsnake]

I wish there was a way for such a craft to benefit from the advances that take place on Earth during those 28 years.

[TowMater]

Second to last planet.. i don't give a shit what you people say, Pluto IS a planet.

[DuckOfRubber]

I was never curious about this until I saw the video on my home page, but once I saw it I had to know.

[BigChrisENT]

Space... The final frontier.
These are the voyages of the starship Enterprise.
Its continuing mission, to explore strange new worlds.
To seek out new life and new civilizations.
To boldly go where no one has gone before.

[ophthodoc]

Great video. We would likely never want to go there, there is no habitable environment there. But it’s an interesting exercise

[Cosmitaur]

10:04 you are wrong, there are no g forces in slingshoting a planet

[Oystein]

Neptune is not the last planet in our solar system...
Even though Pluto has been downgraded to a dwarf planet it is still a planet... And there are probably more