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Ice Cliffs Spotted On Mars (sciencemag.org)
sciencehabit writes from a report via Science Magazine: Scientists have discovered eight cliffs of nearly pure water ice on Mars, some of which stand nearly 100 meters tall. The discovery points to large stores of underground ice buried only a meter or two below the surface at surprisingly low martian latitudes, in regions where ice had not yet been detected. Each cliff seems to be the naked face of a glacier, tantalizing scientists with the promise of a layer-cake record of past martian climates and space enthusiasts with a potential resource for future human bases. Scientists discovered the cliffs with a high-resolution camera on the Mars Reconnaissance Orbiter, revisiting the sites to show their subsequent retreat as a result of vaporization, and their persistence in the martian summer. The hunt should now be on, scientists say, for similar sites closer to the equator. The findings have been reported in this week's issue of Science.
Frosty cliffs
Is the ice in a good location to explore space from later?
Send humans to Mars.
Get them using the water with more space exploring supplies sent from earth.
A nuclear reactor and rocket fuel factory.
Extract water to create more rocket fuel.
A Project Iceworm for Mars? https://en.wikipedia.org/wiki/...
Domestic spying is now "Benign Information Gathering"
Like this?
Ezekiel 23:20
Well the title of the article is misleading "Ice cliffs spotted on Mars". It says later on that it "appears to be" ice cliffs. Typical.
He may consider sending a few gas guzling beaters to mars... you know warm the place up :)
[($)]
That's not water ice, it's CO2 ice.
maybe, just maybe, this Mr. Mars may have been in a similar situation as our globe and messed up climate-wise similar what is going on on our ball with the speculative point of no return which is not always controllable or fitting in people's brains very well that some ideas are not just very dumb but highly dangerous.
"Things are not always what they seem; the first appearance deceives many; the intelligence of a few perceives what has been carefully hidden." The title sounds like it's stating a fact. It's an appearance, not a confirmed fact.
Says who?
Ezekiel 23:20
You want this meaning: 4. seem; give the impression of being.
Ok, my mistake, I was under the impression most of it was CO2.
I'm curious. Ice has been found on Luna's poles (it may need some processing but it's there), so why does Mars seem to be the go-to place for human colonization? Luna would be far faster/easier to get shipments to/from Earth, much faster communication times, no waiting for optimal interplanetary distance windows etc.
The ice being on the poles shouldn't be as much of a problem. Maneuvering a spacecraft to land on Luna's pole should be far less delta-V than landing it on Mars (I presume). The ice could be pipelined (~1,500 mile pipe, world's longest is ~2,350 miles) to an equator outpost, although given it's ~27kelvin at the poles, heating it to liquid and pumping it would likely be infeasible. However, ice could be electrolyzed into hydrogen and oxygen and those could be easily pumped, then separated or burned for water as needed. I'll let someone else do the math on which of electrolysis or melting would require less energy (although presumably we'd use most of the water for electrolysis into rocket fuel anyway, as water recyclers are reasonably (~85%) efficient.)
Corruption is convincing someone that the selfless ideal is the same as their selfish ideal.
A one meter by 50mm core sample would mass about 2 kg. The navy has railguns now that can accelerate 10 kg to about 2.4 km/sec. According to this Delta V map, delta v to reach low Mars orbit is about 3.8 km/sec. Considering that it wouldn't have to be built to withstand use in warfare, it might not be that much harder than what we've already achieved to build a railgun that could launch an ice core to low Mars orbit.
Yep, good choice.
Landing on Mars is more challenging than on the moon. High gravity and a thin atmosphere means you need a heat shield to deorbit, but you still can't ltouch down using parachutes.
Technically it's more challenging, but the result is considerably cheaper in terms of delta-v. Compared to a hypothetical Mars without atmosphere the heat shield and parachutes pay off well. Though parachutes are most viable for small payloads anyway, for large payloads you pretty much have to land propulsively. Yes, you can airdrop even a light tank here on Earth but not coming in hot and fast from space. Fortunately we have this guy with some experience in that area, landing rockets in a much denser atmosphere than Mars... too bad he's not working a Mars mission or anything like that.
Live today, because you never know what tomorrow brings
Crampons: check ....uh. Stand by Houston.
Ice axes: check
rope, ice screws, pro and harnesses: check
clothing and helmet: check
beer: check
SpaceX Big Falcon:
The Russians have won. They have made the world a cesspool of distrust, greed, fear and hate.
Of Earth, Mars, and the moon, the moon is the body that requires the most propellant to land on. All your delta-v must be done via rocket propulsion. Both Earth and Mars landings can be performed with ~600 m/s of propulsive delta-v, the remainder being handled by atmospheric braking, no parachutes required.