Um espelho que reflecte a vida, que passa por nós num segundo (espelho)

28
Fev 17

[Para todos aqueles que assiduamente visitam Marte – através da observação dos registos enviados pelas diversas sondas aí colocadas (na sua órbita ou no próprio solo marciano) – mais umas quantas imagens (9) sendo muitas delas familiares (já que as tínhamos visto antes e registado na nossa memória), que nos elucidam um pouco mais sobre o que estamos a ver (nuns casos confirmando a certeza, noutros casos tirando-nos as dúvidas, ou então, retirando-nos simplesmente as palas).]

 

 

Wow, Mars Sure Can Be Pretty

(Evan Gough – universetoday.com)

 

For a supposedly dead world, Mars sure provides a lot of eye candy. The High Resolution Imaging Science Experiment (HiRise) aboard NASA’s Mars Reconnaissance Orbiter (MRO) is our candy store for stunning images of Mars.

 

ESP_049009_1520-700x432.jpg

This colorful image of Martian bedrock, punctuated in the center by dunes, is courtesy of the HiRise camera aboard NASA's Mars Reconnaissance Orbiter

 

Recently, HiRise gave us this stunning image (above) of colorful, layered bedrock on the surface of Mars. Notice the dunes in the center. The colors are enhanced, which makes the images more useful scientifically, but it’s still amazing.

 

HiRise has done it before, of course. It’s keen vision has fed us a steady stream of downright jaw-dropping images of Elon Musk’s favorite planet. Check out this image of Gale Crater taken by HiRise to celebrate its 10 year anniversary orbiting Mars. This image was captured in March 2016.

 

PIA20167_hires-1024x768.jpg

HiRise captured this image of unusual textures on the floor of the Gale Crater, the same crater where the Curiosity rover is working

 

The MRO is approaching its 11 year anniversary around Mars. It has completed over 45,000 orbits and has taken over 216,000 images. The next image is of a fresh impact crater on the Martian surface that struck the planet sometime between July 2010 and May 2012. The impact was in a dusty area, and in this color-enhanced image the fresh crater looks blue because the impact removed the red dust.

 

PIA17932_hires.jpg

This color-enhanced image of a fresh Martian crater was captured by the HiRise camera

 

These landforms on the surface of Mars are still a bit of a mystery. It’s possible that they formed in the presence of an ancient Martian ocean, or perhaps glaciers. Whatever the case, they are mesmerizing to look at.

 

oddridges.jpg

These odd ridges are still a mystery. Were they formed by glaciers? Oceans?

 

Many images of the Martian surface have confounded scientists, and some of them still do. But some, though they look puzzling and difficult to explain, have more prosaic explanations. The image below is a large area of intersecting sand dunes.

 

polygondunes.jpg

What is this? A vast area of Martian rice paddies? Lizard skin? Nope, just an area of intersecting sand dunes

 

The surface of Mars is peppered with craters, and HiRise has imaged many of them. This double crater was caused by a meteorite that split in two before hitting the surface.

 

weirdest-mars-craters-11-130507.jpg

This double impact crater was caused by a meteorite that split into two before hitting Mars. Notice how the eroding force of the wind has shaped each crater the same, smoothing one edge and creating dunes in the same place

 

The image below shows gullies and dunes at the Russell Crater. In this image, the field of dunes is about 30 km long. This image was taken during the southern winter, when the carbon dioxide is frozen. You can see the frozen CO2 as white on the shaded side of the ridges. Scientists think that the gullies are formed when the CO2 melts in the summer.

 

hirise-gullies-580x435.jpg

These gullies are on the dunes of Russell Crater on Mars. This image was taken during winter, and the frozen carbon dioxide on the shaded slopes

 

The next image is also the Russell Crater. It’s an area of study for the HiRise team, which means more Russell eye candy for us. This images shows the dunes, CO2 frost, and dust devil tracks that punctuate the area.

 

Russell_Crater_Dunes_Defrosted-resized.jpg

This image of the Russell Crater, an area of study for HiRise, shows the area covered in dunes, with some frost visible in the lower left. The larger, darker markings are dust devil tracks

 

One of the main geological features on Mars is the Valles Marineris, the massive canyon system that dwarfs the Grand Canyon here on Earth. HiRise captured this image of delicate dune features inside Valles Marineris.

 

chojnacki-1-a.jpg

These delicate dune features formed inside the Valles Mariners, the massive canyon system on Mars

 

The Mars Reconnaissance Orbiter is still going strong. In fact, it continues to act as a communications relay for surface rovers. The HiRise camera is along for the ride, and if the past is any indication, it will continue to provide astounding images of Mars.

And we can’t seem to get enough of them.

 

(Evan Gough – Wow, Mars Sure Can Be Pretty – 24.02.2017 – Universe Today)

 

[imagens: NASA]

publicado por Produções Anormais - Albufeira às 14:29

23
Nov 16

Black & White

 

On Earth and Cleary on Mars the Sun is always present: in our land strictly to save us in alien land sometimes to kill them. The second choice targeted to Mars an arid and deserted planet without atmosphere or water – probably with life billions of years ago (even on a primitive way) and today appointed by man as a future colony (with space conquest in our mind vision).

 

RRB_533154058EDR_F0592830RHAZ00337M_.JPG

On planet Mars the Sun really burns

From the perspective of a possible and still existent Martian

In the actual ambient conditions (of deadly radiations) only being possible underground

(MARS – SOL 528 – 23.11.16)

 

Rising in the not almost clear sky of alien planet Mars, without clouds but only dust (to earthman normal like in the desert) and starting warming once again the almost cremated scenario for billions and billions of years invaded by cosmic rays (including and mostly solar): and flying in space like a zombie without is soul and even a destiny to just talk about (or murmur).

 

(image: nasa.gov)

publicado por Produções Anormais - Albufeira às 12:45
tags: , ,

11
Mar 16

Photojournal NASA
(11.03.2016)

 

PIA20166.jpg

 

This map shows the route driven by NASA's Curiosity Mars rover from the location where it landed in August 2012 to its location in early March 2016, approaching a geological waypoint called "Naukluft Plateau."

 

Curiosity departed the "Gobabeb" waypoint, where it scooped samples from a sand dune for analysis, on Feb. 3, 2016, with a drive during the 1,243rd Martian day, or sol, of the rover's work on Mars.

 

The base image for the map is from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. North is up. Bagnold Dunes form a band of dark, wind-blown material at the foot of Mount Sharp.

 

(texto e imagem: NASA/JPL-Caltech/Univ. of Arizona)

publicado por Produções Anormais - Albufeira às 23:27

10
Jan 15

Quando olhamos para o planeta Marte poderemos estar a olhar para nós!

Possible Signs Of Ancient Life On Mars
(Jacqueline Howard – The Huffington Post)

 

n-LIFE-ON-MARS-PHOTOS-large570.jpg

 

"We can detect sedimentary structures in rocks on Mars using the rover images" (Dr. Nora Noffke)

 

"The structures I describe belong to a group of microbial structures that form by the interaction of benthic (living on the ground) microbes with sediment dynamics (erosion) in clastic deposits such as sand" (Dr. Nora Noffke)

 

In other words, if such structures do exist on Mars, that suggests the planet may have once harbored microbial life. The microbes would have existed on Mars less than 3.7 billion years ago

 

For her research, Noffke looked at the structures seen in rocks on Mars and compared them to geological structures on Earth that are formed by microbes living in communities called microbial mats.

 

"Mats are composed of trillions and trillions of microbes that assemble on the floor of lakes, rivers, oceans," Noffke said in the email. "The microbes communicate with each other, they arrange into a dense layer and collaborate in gaining nutrients and light." (Dr. Nora Noffke)

 

(huffingtonpost.com)

publicado por Produções Anormais - Albufeira às 18:02
tags: , ,

13
Ago 14

Dois temas ligados às alterações climáticas no planeta Terra e um terceiro tema relacionado com o planeta Marte: no primeiro tema as consequências da seca intensa que tem castigado dura e prolongadamente o estado norte-americano da Califórnia, com um contraponto dirigido para a Índia e para os efeitos por vezes devastadores das monções, no segundo tema; o terceiro tema tem a ver com a passagem do cometa Siding Spring numa tangente ao planeta Marte e das implicações atmosféricas que isso poderá ter para ambos.

(sobre os três textos seguintes de The Watchers)

 

California sinking one foot each year from groundwater depletion

 

California

 

The drought-stricken state of California is sinking into itself at an alarming rate, suggests a new report by the U.S. Geological Survey (USGS). The continued over-pumping of groundwater in many parts of the state -- the direct result of a historic three-year dry spell -- is creating empty pockets of earth that are causing the ground to literally drop, in some places by as much as one foot per year.

 

India's monsoon rains are changing - Heavy rain and extreme floods devastate Odisha, India (again)

 

India

 

Heavy rains that started in Indian state of Odisha, Bay of Bengal, mid July continued through August causing deadly floods and destruction. By Sunday, August 10, 2014, death toll climbed to 45, while flood waters affected more than 3 200 000 people. Over 3 million hectares of crops have been flooded in what might be the worst flooding Odisha experienced in more than 30 years.

 

Colliding atmospheres - Mars vs Comet Siding Spring

 

Mars

 

It's a known fact that planets have atmospheres, but the same can't be said for comets. The atmosphere of a comet, called its "coma," is made of gas and dust that spew out of the sun-warmed nucleus and it's typically wider than Jupiter.

“What might happen if the atmosphere of Comet Siding Spring hits the atmosphere of Mars on October 19/2014 – when the comet flybys just 132 000 km away from the surface of Mars”?

 

(texto em inglês e imagens – The Watchers)

publicado por Produções Anormais - Albufeira às 21:34

01
Ago 14

“A cada salto cíclico esta espécie vai-se renovando e evoluindo”

(isso é certo – com ou sem humor)

 

NASA's Mars rover of the next decade will look for ways to sustain human life

 

Só se for dentro de uma lata de conservas

 

NASA's next Mars rover will make oxygen, look for farmland

 

Só se for a picareta que resista

 

Mas o que na realidade acontece é que temos de procurar novos mundos além daquele onde actualmente vivemos, isto se pretendemos prosseguir em frente com a continuidade da nossa espécie: não sendo provavelmente o interior do Sistema Solar o nosso destino, mas apenas uma das etapas iniciais da nossa grande viagem.

 

(títulos: CNN – imagens : Web)

publicado por Produções Anormais - Albufeira às 23:26
tags: ,

18
Out 11

Dark sand cascades on Mars

 

Mars

 

Explanation:

 

They might look like trees on Mars, but they're not. Groups of dark brown streaks have been photographed by the Mars Reconnaissance Orbiter on melting pinkish sand dunes covered with light frost. The above image was taken in 2008 April near the North Pole of Mars. At that time, dark sand on the interior of Martian sand dunes became more and more visible as the spring Sun melted the lighter carbon dioxide ice. When occurring near the top of a dune, dark sand may cascade down the dune leaving dark surface streaks -- streaks that might appear at first to be trees standing in front of the lighter regions, but cast no shadows.

 

Mars North Pole

 

(Web)

publicado por Produções Anormais - Albufeira às 16:09

Junho 2019
Dom
Seg
Ter
Qua
Qui
Sex
Sab

1

2
3
4
5
6
7
8

9
10
11
12
13

19
20
21
22

24
25
27
28
29

30


Subscrever por e-mail

A subscrição é anónima e gera, no máximo, um e-mail por dia.

subscrever feeds
mais sobre mim
pesquisar
 
blogs SAPO