[bearnard1212 (OP)]

What are the most important issues we have now in space exploration area? As we can see now space explorations are developing very rapidly and by doing this, it causes a lot of issues to solve. Humans have a lot of stuff to figure out to get closer to particular purpose and which one do you consider is the most important and must be solved the first?

[alancalverd]

1. Why?

2. Where?

3. How?

Current exploration of Mars may prove interesting but the reward for a manned expedition to anywhere else seems not to justify the effort.

[footprints888]

 Elon Musk, Omar Abdulla,
and Patrice Motsepe see
‘new heights,’ on investments into
Mars probes…??
by Farhana Essop
 
(March 2021—CNBC) The Wolf of Wall Street, Mr. Omar Abdulla
attended meetings with
Billionaire Investor Mr. Elon Musk, recently sighting up to
10 million residents living on
the planet Mars, by 2050.
 
“We have invested heavily into Space X and The Omar Abdulla Group so that
wealthy residents,
will be able to live on Mars, and to see the growth of the human species,
beyond Earth.’
Musk elaborated.
Speaking to Footprints in California, Mr. Omar Abdulla says that
he had assisted Musk on formulating ‘easier and faster ways,’
to reach the planet, during ‘peak windows…’
 

 
 
“Normally to travel to Mars, will be about 180 million miles, but with
calculations and spectrum,
we can reach Mars, by only travelling 30 million miles,
when Earth and Mars are closest.’
he cooled.
 
 
President of The United States, Mr. Joe Biden who recently signed a $1.9 trillion
dollar stimulus package added that Musk and Abdulla were well groomed
in growing humanity to the red planet.
“Mars is simply just too cold for life, but Musk has said with the using of
nuclear weapons to warm the planet, who knows
10 million people could be on Mars, by 2050.’
 
 
South African businessman, Mr. Patrice Motsepe who spoke to
SABC NEWS,
looped that he has looking into Mars, as the future of
humanity and supported
Abdulla’s approach to reaching the planet faster, and Musk’s ideas
of warming the planet so that water can be found on the planet.
“Using nuclear weapons to bomb the planet could result in a thicker
atmosphere for life.’ he
croaked.
 
 
The Omar Abdulla Group is an investment company into
Tik Tok SA,
YouTube SA, Space X SA,
Communities SA, Forex SA, and Vaccines SA.
“The company is headed for ‘new heights,’ with the investment
into Space X SA,
 
 
that could see many South African’s soon relocating to Mars.’
read the company website.

 
Concluding his remarks to The New York Times, Mr. Elon Musk says
that Mars is the future of civilization and his investment into Abdulla’s
company and other related companies could see
a redder morning Sun, a healthier breath of fresh air on Mars,
and the development of resources that could billions of dollars
for shareholders of his companies.

[charles1948]

Red planet blink
Red planet wink

And now it seems, you beat our dreams
We came to you instead.

[Halc]

The entire post above was a straight copy of a blog entry and is full of holes.  Pointing one out.

Speaking to Footprints in California, Mr. Omar Abdulla says that
he had assisted Musk on formulating ‘easier and faster ways,’
to reach the planet, during ‘peak windows…’
 
“Normally to travel to Mars, will be about 180 million miles, but with
calculations and spectrum,
we can reach Mars, by only travelling 30 million miles,
when Earth and Mars are closest.’
he cooled.

Cooled?

Anyway, the nearest approach of the orbits of Mars and Earth is perhaps 38 million miles.  Taking that trajectory would require (from LEO to LMO) some 55 km/sec of delta-V vs about 6 km/sec of delta-V actually required to get an object from low orbit of one planet to the other.. There is no way that Musk would entertain such an inefficient trajectory requiring over 80 times the fuel expenditure.  The number of miles is meaningless. It's all about delta-V (which is proportional to the square root of the fuel cost), plus, if there are humans involved, the time of the trip which contributes to cost (and weight) of required life support.

Perhaps Musk, desperate for rich suckers, is just humoring Abdulla and his naive suggestions.

[bearnard1212 (OP)]

The entire post above was a straight copy of a blog entry and is full of holes.  Pointing one out.

Speaking to Footprints in California, Mr. Omar Abdulla says that
he had assisted Musk on formulating ‘easier and faster ways,’
to reach the planet, during ‘peak windows…’
 
“Normally to travel to Mars, will be about 180 million miles, but with
calculations and spectrum,
we can reach Mars, by only travelling 30 million miles,
when Earth and Mars are closest.’
he cooled.

Cooled?

Anyway, the nearest approach of the orbits of Mars and Earth is perhaps 38 million miles.  Taking that trajectory would require (from LEO to LMO) some 55 km/sec of delta-V vs about 6 km/sec of delta-V actually required to get an object from low orbit of one planet to the other.. There is no way that Musk would entertain such an inefficient trajectory requiring over 80 times the fuel expenditure.  The number of miles is meaningless. It's all about delta-V (which is proportional to the square root of the fuel cost), plus, if there are humans involved, the time of the trip which contributes to cost (and weight) of required life support.

Perhaps Musk, desperate for rich suckers, is just humoring Abdulla and his naive suggestions.

I want that new kind of propulsion system will be invented. The new kind that will allow us making long space journeys we cannot do now. Off cource it sounds impossible now to invent such propulsion system but just imagine how it would change our world. But there are more iportant issues we need to solve