could it be possible to go mars in three days?

No.

I can pack my bags in less than days..What's the plan?

more source: [link to www.sciencealert.com]

They have been able to for the last 45 years, lot quicker than 3 days.

Do tell.

why so urgency ?

They can't even breach 90000 feet! So no...and space is all a lie

They need to be able to get to Mars a hell of a lot quicker than they can know, if manned travel to that planet is going to be practical.

With all the talk of one day launching a human mission to Mars, it still would take upwards of six months to reach the Red Planet.
But NASA researchers are working on new laser technology that could allow a craft to reach Mars in as little as three days. Known as photonic propulsion, the system would works by using lasers to propel a giant sail. Rather than photons from the Sun’s rays, the system would get a boost from Earth-based lasers, according to ScienceAlert.

[link to www.foxnews.com]

I doubt it, it takes 32 hours to get from Japan to Hawaii in plane.

Gov science is far ahead of main street science by at least fifty years they can get there in a
matter of hours.

There is no way you could acquire, load and launch a interplanetary rocket by Thursday. Sorry

Man can't even get to this planet's moon so OP you'll have to wait a while for access to another planet.