Mars

Cup analogies, perfect for understanding humans limited minds when it comes to Space.

if you filled a cup with water from the ocean in order to reach a conclusion(theory) about all the oceans and its contents, you would think that they are empty and no life exists.

That flawed logic can’t be applied when reaching conclusions about Space, ultimately humans and Scientist gods know **** all about Space…just a little bit…a cup full of knowledge at best.

 

What's a scientist god?

 

2021 in review: Three different missions land on Mars
Over the course of just 10 days in February, three missions arrived at Mars. Together, they are creating a clearer picture of our closest planetary neighbour

SPACE 15 December 2021
By Leah Crane

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The Tianwen-1 mission

Xinhua/Alamy



OVER the course of just 10 days in February 2021, three missions arrived at Mars.

The first was the United Arab Emirates’s Hope orbiter, which entered orbit on 9 February. Hope is the UAE’s first interplanetary mission. While some of its systems couldn’t be tested on Earth, the entry went smoothly.

“These missions are complementing each other, technically or scientifically”


“It was a once in a lifetime experience – a terrifying one, exhausting, but a very good one,” says Omran Sharaf at the Mohammed Bin Rashid Space Centre in Dubai.

The next day, China’s Tianwen-1 mission joined Hope in orbit. Tianwen-1 is an ambitious mission, with an orbiter, lander and rover. After three months of testing instruments and making sure the landing site was free of obstacles, the orbiter released the lander and the Zhurong rover, which arrived at the surface on 14 May, making China the third country to land a rover on Mars.

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The Hope mission

MBRSC




“These missions are complementing each other, whether it’s technically or scientifically, and they will all help us develop the next round of Mars missions,” says Sharaf.

The third to arrive at Mars was NASA’s Perseverance rover on 18 February. One of its goals is to collect and set aside samples to be returned to Earth by NASA’s next mission to Mars. “Sample return has been a decade away for decades – it’s still a decade away, but it’s started,” says NASA’s Ken Farley.

The Perseverance mission also carried the Ingenuity helicopter to Mars, the first drone to fly on another world. It has been remarkably successful – it was originally planned to make five test flights, but it had made 17 by early December, many of which were longer and more complicated than any of the planned tests. “We had orbiters and then landers and then rovers, and now it looks like we can fly as well,” says Farley.

Perseverance has found volcanic rocks that appear to have been altered by contact with water, giving us insight into the ancient lake that used to cover its landing site. Zhurong has taken many images of the Martian terrain. Hope has imaged Mars’s aurora and seen unexpected structures in the atmosphere.

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The Perseverance mission

NASA/JPL-Caltech/MSSS



“While the reasons are not laid down yet as to why we’re seeing what we’re seeing, it’s very exciting,” says Hessa Al Matroushi, the Hope mission’s science lead.

“At the beginning there’s always different puzzle pieces, and as you get more data they start to interlock,” says Farley. With all these missions at Mars, the number of puzzle pieces will only increase, each bringing its own set of questions. But as the puzzle grows, our picture of the Red Planet will become clearer.

 

@brb

you need to get the the Tags working again ffs

 

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Apollo 17 rock sample hints the moon cooled faster than we thought
A rock sample collected from the moon during the Apollo 17 mission in 1972 has been re-examined, and the results suggest the lunar surface might have cooled in just 20 million years

SPACE 14 December 2021
By Chen Ly

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NASA image of Troctolite 76535

NASA/Johnson Space Center

A rock collected from the moon during the Apollo 17 mission in 1972 cooled to its current state much more rapidly than we thought, according to a reanalysis of the sample. The finding highlights the value of re-examining old lunar samples.


Most of our current knowledge of lunar evolution comes from rocks collected by astronauts half a century ago during NASA’s Apollo programme, but they can still yield new information.

William Nelson at the University of Hawaiʻi at Mānoa and his colleagues reinvestigated one of the collection’s most well-studied rocks, known as troctolite 76535. It weighs roughly 156 grams and is 5 centimetres across at its widest point. The sample is part of a group known as the magnesian suite (Mg-suite). These rocks represent some of the first stages of what is known as secondary crust formation, which happened when the lower parts of the moon’s mantle rose to the surface and crystallised.

Read more: Apollo special: It’s the solar system, stupid
Using high-resolution analytical techniques, Nelson and his team found that phosphorous was distributed through the sample fairly unevenly. This suggests that the rock may have cooled quite quickly, as the element didn’t have enough time to spread out uniformly within the rock before it solidified. Then, via computer modelling, the team deduced the sample must have taken around 20 million years to solidify from its initial molten state. This cooling time is significantly shorter than previous estimates, which were around 100 million years.


The result shows that early lunar evolution is more complicated than we thought, say the researchers, although they say we need further research to determine if the cooling history of troctolite 76535 represents the entire Mg-suite, given that just a single example has been reanalysed. “This is a sample size of one right now,” says Nelson.

“There’s still value to be had in looking back at old samples to try to get a good idea of how the moon as a whole formed,” says Nelson. “You can always go back and reanalyse old data sets with new techniques to pull out new nuggets of information.”

Apollo 17 was the last manned mission to the moon, and carried the only full-time geologist - Harrison Schmitt . From a time when dreamers dared and did it.

 

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Been away from here for a bit Am I on the wrong thread? I am old and doddery, and I have been posting wrong stuff on wrong threads (sorry @brb)

 

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So

 

Sooooo?

 

I was just being a prick it's all very interesting really

 

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Pinkie will be jealous/furious

 

Okay, hands up - I'm a nerd here on a non-nerd thread that's been taken over by the cool kids. I'm getting out before I get a Chinese burn and a wedgie.

 

Just leave ya dinner money on the side