NASA thinks there's a way to get to Mars in three days

[onebyone]

We've achieved amazing things by using chemical rockets to place satellites in orbit, land people on the moon, and place rovers on the surface of Mars. We've even used ion drives to reach destinations further afield in our solar system. But reaching other stars, or reducing our travel time to Mars or other planets, will require another method of travel. One that can approach relativistic speeds.

http://phys.org/news/2016-02-nasa-mars-days.html

 

[nvKyleBrown]

That's not relativistic speed. Relativistic is way faster. Light speed is ~8 minutes to Mars, not 3 days.

Still, NASA is talking out their collective a**. 3 days would mean ~6000Gs constant acceleration - halfway accelerating toward Mars, halfway accelerating away from Mars (so that you don't just make a crater when you arrive).

We don't have materials that can do that, let alone people.

 

[Taygibay]

Nasa’s new laser propulsion could get humans to Mars in 3 days

Source: https://defence.pk/threads/nasa’s-new-laser-propulsion-could-get-humans-to-mars-in-3-days.423265/#ixzz41zLF1RcP

And there is another one on this particular piece and a couple more from earlier.
May I invite the both of you to join us? nvKyle could add his potent remark to others of the same cloth.

BTW, 8 minutes is to the Sun. Time to Mars varies along with the varying distance
between the Red and Blue planets?

Great evening both, Tay.

 

[prabakar]

There could be a possibility.....Thats why they are telling...Lets wait and see

 

[amardeep mishra]

I am waiting to see such a propulsion.However in real life ,hohman transfer or bi-elliptic transfer mechanisms have been used to transfer satellites from earth orbit to mars. Infact india too used hohman transfer in chandrayaan-1 mission.It is the most optimal way in certain conditions(when the semi-major axis of the new orbit isnt very large).Here optimality refers to minimizing cost function consisting of energy or fuel. A "time-optimal" transfer would require massive rockets to directly transfer anything from earth to mars.

 

[Immortan.Joe]

That's not relativistic speed. Relativistic is way faster. Light speed is ~8 minutes to Mars, not 3 days.

Still, NASA is talking out their collective a**. 3 days would mean ~6000Gs constant acceleration - halfway accelerating toward Mars, halfway accelerating away from Mars (so that you don't just make a crater when you arrive).

We don't have materials that can do that, let alone people.

Nasa’s new laser propulsion could get humans to Mars in 3 days

Source: https://defence.pk/threads/nasa’s-new-laser-propulsion-could-get-humans-to-mars-in-3-days.423265/#ixzz41zLF1RcP

And there is another one on this particular piece and a couple more from earlier.
May I invite the both of you to join us? nvKyle could add his potent remark to others of the same cloth.

BTW, 8 minutes is to the Sun. Time to Mars varies along with the varying distance
between the Red and Blue planets?

Great evening both, Tay.

And they are not counting energy requirement of such laser and atmospheric attenuation.

A Laser capable of providing such a force would also be capable of ionizing anything on which it is incident.