How many days does rocket takes to reach the moon from Earth?

How long does it take to travel to the Moon

It took about 3 days for Apollo.

But there are faster and slower trajectories depending on your needs.

How long does it take to get to Mars from the Moon

Because there is no broomstick.

,The broomstick is a solid, but remember that solids are just a network of atoms bonded together in various ways.

When you push this end of the broomstick, the motion doesnu2019t immediately affect the other end.

,You can actually see this:,Look at that club bend.

,The motion youu2019ve created on this end takes time to travel down the broomstick.

In this case, that wave travels at the speed of sound in the stick - somewhere in the 4,000 m/s range (Iu2019m guessing, but thatu2019s pretty typical for wood).

,At that speed, your push will show up 100 million seconds later (Mars is around 400 million km from Earth).

Thatu2019s a bit over 3 years from now.

:-O

How long does it take to get to Jupiter

The spacecraft Juno took several years to get to Jupiter.

A year after launching it had actually returned to Earth for a gravity assist (worth about 4 km/s) and armed with that boost proceeded to Jupiter.

I arrived 3 years later.

Fired up its main engine to de-celerate enough to be captured into a Jupiter orbit.

,So, with some technology improvements (4 km/s worth in the booster rocket), there would be no need for a grav assist and thus a 3 year journey.

,Can we cut it to a 2 year journey? Not easily.

All we are doing (with chemical propulsion) is putting the spacecraft into an elliptical orbit around the Sun.

The orbit is such that it intersects both Earth and Jupiter orbits (itu2019s highly elliptical compared to planetary orbits).

,The most efficient in terms of fuel, is when Earth is at the short end of the ellipse, and Jupiter at the long end.

3 years for that.

A less efficient orbit can have the two planets u2018closeru2019 on that ellipse.

It would require more dV when getting away from Earth, and, on arrival, more dV (more fuel) to slow down.

Thereforeu2026 nobody is going to do it.

Because they would rather put more science instruments on and take a little longer to get there.

Earth to Mars travel time in days

There are various unanswered questions here that could make vast differences to the delta-V.

,In the fictional universe where you get constant acceleration between Earth and Mars, that doesnu2019t as definitively make the difference between u201cimpossibleu201d and u201cpossibleu201d as it does in the real universe, but it may make a huge difference in time, and may still make it impossible in some cases.

,Letu2019s call them the Derelict craft and the Rescue craft for clarity.

,1) When do the Rescue Craft know that they need to do the deflection? That is, are they going u201cEarth -> Derelict Craft -> Marsu201d, or u201cEarth -> Almost to Mars -> Derelict Craft -> Marsu201d? Worse case, you change the problem from u201ca detouru201d to u201can entirely separate tripu201d.

,2) Whatu2019s the difference in velocity between how they will be traveling to reach it, and the ship? Worst case, thereu2019s no way that they can catch this ship in reasonable time because they lack the acceleration.

Note that this doesnu2019t necessarily mean that the craft is going faster: consider the case where the Derelict was relatively stationary at the halfway point between Mars and Earth, and the Rescue craft discovers them just before they pass them.

If theyu2019ve been under constant thrust from Earth, they canu2019t stop dead to match speeds with the Derelict.

Instead they will need to slow down for the same amount of time under the same thrust, and will have arrived at Mars before they have matched velocity with the Derelict.

Equally, what if the craft was going just as fast as they wereu2026 but at right angles? Even if they knew from Earth that the craft would be crossing their path, thereu2019s no realistic way for them to matching trajectories without going well out of their way, if at all.

,3) Whatu2019s the trajectory that the Rescue Craft would follow to take 140 days between Earth and Mars? Where are Earth and Mars relative to each other at the start of the trip? Whatu2019s the maximum thrust of the Rescue Craft? For a constant-thrust craft, 140 days seems kinda looong, at least with a quick back-of-the-envelope, unless the thrust is very low, which means that rendezvousing with other craft might be tricky.

,4) Where is the Derelict relative to Mars and the Rescue craft? u201cBeyond Mars Orbitu201d is suuuper vague.

Does that mean u201csomewhere between Earth and Marsu201d, u201cSomewhere past Mars, in the trajectory that the Rescue craft is taking to Marsu201d, or something else?,So, worst case itu2019s not possible, or takes insane time because they have to fly out of the solar system before theyu2019ve matched velocities, or they need to loop around Mars to flip themselves around, or.

.

.

,But best case, they learn about it fairly early, and the Derelict is moving in *roughly* the same direction as they are, so they can decelerate to match velocities without needing to accelerate too hard backwards or at right angles, and so it just takes a little bit of finessing to tweak their trajectory to match, and then the time difference is even less than whatever time it takes for them to fly the 500,000 km from the rendezvous to Mars.

,Essentially: the question is too vague to answer, but also too vague for a reader to nitpick with any certainty, so you can probably make up whatever answer fits with your story.

How long does it take to get to Mars from Earth at the speed of light

Because there is no broomstick.

,The broomstick is a solid, but remember that solids are just a network of atoms bonded together in various ways.

When you push this end of the broomstick, the motion doesnu2019t immediately affect the other end.

,You can actually see this:,Look at that club bend.

,The motion youu2019ve created on this end takes time to travel down the broomstick.

In this case, that wave travels at the speed of sound in the stick - somewhere in the 4,000 m/s range (Iu2019m guessing, but thatu2019s pretty typical for wood).

,At that speed, your push will show up 100 million seconds later (Mars is around 400 million km from Earth).

Thatu2019s a bit over 3 years from now.

:-O

How long does it take to get to Pluto

Okay.

Weu2019ll ignore the little problem of not being able to walk in space, lack of oxygen, and severely limited lifespan.

,The numbers are as followsu2026,Pluto averages 3.

665 billion miles from the Earth.

Personally, I average about 4 mph on a brisk walk.

So that works out to 916,250,000 hours.

,Assuming youu2019re planning on walking 24 hours a day, 365 hours a year with no potty breaks, itu2019ll take you just over 104,594 years to get there.

,Wear comfortable shoes.

How far is Mars from Earth

This is the opportunity youu2019ve been waiting for: To laugh at your brother.

No, it doesnu2019t take a spacecraft ten years to travel from Earth to Mars, thatu2019s an exaggeration byu2026 a lot of times.

,(Earth rise on Mars, captured by Curiosity rover).

At an optimal trajectory, and of course, speed, it will take on average less than five months to reach Mars safe and sound.

,Such as in the case of the New Horizon probe - the fastest spacecraft that was launched from Earth thus far - at 58,000 kph, it takes 942 hours (39 Days) for it to pass by Mars.

,And the farthest and longest approach to date is only 6,944 hours (289 Days).

,Thatu2019s an exaggeration by the power of ten.

Haha.

,In factu2026 in ten years you can travel several times that distance by going from Earth to the farthest, and recently disavowed planet of the Solar System - Pluto.

,Out there in the most right.

,Again, New Horizon took 9 years, 5 months and 25 days to travel from Earth to Pluto.

So you still have 7 months left to go and probably can even pass the Kuiper Belt by a couple hundred thousands kilometres before 10 years dried up.

,General Consensus: A generous travel itinerary.

,REVISION: Alright, so Bas Leijser told me that instead of the actual u2018Travel timeu2019 of a vehicle between Earth and Mars, itu2019s actually the time it will take for human to finally get to Mars.

,u2026well, sorry if you already laughed at your brother.

Because I think you need to, erh, buy him an ice cream or something.

Because, yeah.

Itu2019ll take around a decade for human to get to Mars, should everything go according to plan.

In fact, itu2019ll probably take less than ten.

,Recently a lot of plans and preparations regarding to putting a human on Mars have been made.

And itu2019s not like the touch-and-go trips like the Apollo missions and the Moon.

,But instead, itu2019ll be a one-way trip for the establishment of the first interplanetary outpost.

,Weu2019ve already got the habitats, radiation shielding, energy, life support, blah blah blahu2026 down on paper and in practice.

,Now all we need are volunteers, and so far, thereu2019s already been hundreds applications and will sink down to a total of 100 for the final mission for Mars.

Mars One.

,Right now, the first person to step foot on Mars is somewhere.

,Then thereu2019s the means to get there.

Hereu2019s what youu2019ll probably arrive in, according to SpaceX.

,(SpaceXu2019s Red Dragon).

And in the distant future, you can see the arrival of settlers by the bulks of hundreds or more in gigantic spaceships such as this.

,(SpaceXu2019s Interplanetary Transport System - ITS).

A lot of people think that the ITS is just a concept and probably would never lift off the table.

,Nope, here is its fuel tank.

,And thatu2019s the upper stage.

,This is the size of the final rocket.

,According to Elon Musk, CEO of SpaceX, thereu2019d probably be humans on Mars by 2025.

Which is not far at all, and yea, around 10 years.