Showing posts with label Mars. Show all posts
Showing posts with label Mars. Show all posts

Wednesday, January 1, 2014

Evidence suggests life on Earth could have started on Mars:

There is a theory that"s gaining a bit of traction in the scientific community, a theory which suggests that life on Earth could have come from Mars. Evidence in favor of this theory has been building over the last couple of decades, which and it indicates that we all (could be) Martians.

The theory basically asserts that, some 4-billion years ago, life started on Mars. Then a meteor then struck the planet, sending little chunks of Martian rocks (containing Martian life) into interplanetary space. One or more of these rocks then fell to Earth, seeding life on the planet and BOOM, here you are.

Learn all about this theory, and the evidence that supports it, at:
http://www.fromquarkstoquasars.com/evidence-suggests-life-on-earth-could-have-started-on-mars/

Image:
NASA

Friday, December 20, 2013

Astronomy Picture of the Day: 12/20/13 - Dust Devil Trails on Mars

When most of us think of the Red Planet, we picture a dead planet, home to a seemingly endless red horizon, chock-full of rock and dust, with the sun appearing as a much smaller point in the sky than the huge, blindingly bright orb we are used to. All of those are true, but Mars is actually much more than that. Images such as this help showcase its true marvels.

The image, taken by the HiRISE camera (belonging to the Mars Reconnaissance Orbiter) at around noon (Martian-time), captures one of the most magnificent dust devil trails ever seen on Mars. These storms tend to be unpredictable and can quickly grow from a contained storm, to almost engulf the entire planet in howling wind. (some of the "dust devils," which are essentially miniature tornadoes, can become up to 8 kilometers in height.)

The storms generally occur when warm air rises and cool air sinks, creating horizontal winds that began spinning until they form a vortex. On Mars, we can clearly see the color of the sand (which is actually dark grey beneath the thin film of iron oxide, due to the presence of basalt). The dust devils are known to disrupt the outermost layer, revealing the colorful landscape pictured here.

Sources and Further Reading: http://www.fromquarkstoquasars.com/astronomy-picture-of-the-day-122013-dust-devil-trails-on-mars/

Image Credit: HiRISE, MRO, LPL (U. Arizona), NASA

Sunday, December 15, 2013

Hot Spots and Olympus Mons:

All around us, the forces of nature are at work, constantly shaping and reshaping the entirety of our landscape. Said changes dictate our daily lives, yet it has only been in the last couple of centuries that man has advanced enough to begin to ‘control’ nature (in the loosest sense of the word). We have built sprawling urban conurbations; designed drugs to cure diseases and we"ve even developed methods of taming the largest, fastest moving rivers on the planet. However, there is one force of nature that we (currently) have no control over, and it’s the greatest force on planet Earth – plate tectonics.



So.. what do they do? As it turns out, plate tectonics are responsible for the shape of our local environment. In fact, they have been re-sculpting the whole surface of the Earth in a continuous cycle for eons now. We see the effects all across the planet; from the majesty of the various mountain ranges, to the devastation of earthquakes and tsunamis. Continental drift has the power to shift climates, split up landmasses and isolate species; therefore it must play an important role in evolution and our own history. Therefore, it stands to reason that their full impact needs to be discerned to better plan for the future (and for our survival)

So.. how do they tie into Olympus Mons; the most spectacular volcano in our solar system? Find out: http://www.fromquarkstoquasars.com/hot-spots-and-olympus-mons/

Larger Image: http://www.fromquarkstoquasars.com/wp-content/uploads/2013/12/forces-of-nature2.jpg

A Day at Valles Marineris: One of the Largest Canyons in the Solar System

If you’ve been to the Grand Canyon, then you probably know what it’s like to feel rather fleeting and smallish. When you stand next to this vast trench, you see an immense structure that’s been some 70 million years in the making (which is a bit longer than the 7 decades most humans are allotted). The canyon snakes across Northern Arizona, stretching more than 270 miles (434km). At points, the chasm is more than a mile deep (1.5km). However, impressive as the Grand Canyon is, it doesn’t come close to measuring up to Mars’ largest canyon, Valles Marineris.

To learn more about this amazing structure see:
http://www.fromquarkstoquasars.com/a-day-at-valles-marineris-one-of-the-largest-canyons-in-the-solar-system/

Image:
NASA

Astronomy Picture of the Day: 12/15/13 - The Dunes of Noachis Terra

Mars is a treasure trove of beautiful - albeit alien - scenery. The dunes of Noachis Terra, which are found inside an impact crater in the southern landmass, are no exception. This enhanced-color image was taken by the Mars Reconnaissance Orbiter’s High Resolution Imaging Science Experiment camera – the image itself spans about six-tenths of a mile (or about 1 kilometer).

The Mars Reconnaissance Orbiter (MRO) arrived at the Red Planet on March 10, 2006 and immediately began preparations for its primary mission; to survey the Martian surface and locate landing sites for future missions. The MRO has been instrumental in helping scientists choose these landing sites, as is the case with the Phoenix and Curiosity missions. The orbiter was originally scheduled to operate for two Earth years. However, even after nearly 7 years, this spacecraft is returning amazing data (not to mention, some awesome pictures) of our little red friend.

References & Further Reading: http://www.fromquarkstoquasars.com/astronomy-picture-of-the-day-121513-the-dunes-of-noachis-terra/

Image Credit: NASA/JPL-Caltech/Univ. of Arizona

Thursday, November 14, 2013

A View of Mars 4 Billion Years Ago:

After hearing about the rovers, satellites, and all of the upcoming manned missions to Mars, have you thought to yourself, "gee, I wonder what a day would look like on that planet"? If you are a science enthusiast, chances are, you probably have. I"m afraid that it wouldn"t be too exciting. Unless you were fortunate enough to see one of the planet"s massive dust storms, mostly, a day on Mars would look like a lot of reddish dirt (still though, it"s alien reddish dirt, so that"s kind of neat). However, it would be a completely different story if you saw it 4 billion years ago.

It"s not just everyday people who spend their days imagining life on alien worlds. NASA and the people at Conceptual Image Lab have been thinking a lot about Mars as well. In fact, they thought about it so much that they decided to make a video of Mars from 4 billion years ago. This is, as NASA puts it, “one of the most complex animations [they have] ever produced”. The video (which can be found here: http://www.youtube.com/watch?v=sKPrwY0Ycno) is designed to help scientists who are working on the Mars Atmosphere and Volatile Evolution (MAVEN) mission, which launches on the 18th of November. It will look at the gases that are currently on the upper atmosphere of Mars to determine the change within its climate.

To read more about what Mars was like, see:
http://www.fromquarkstoquasars.com/a-view-of-mars-4-billion-years-ago/

Image source:
http://ipy.gsfc.nasa.gov/index.html

Wednesday, October 30, 2013

Curiosity Confirms First Drilled Mars Sample

References, sources, and further reading can be found here: http://www.fromquarkstoquasars.com/curiosity-confirms-first-drilled-mars-sample/

To read the full article, see: http://www.fromquarkstoquasars.com/curiosity-confirms-first-drilled-mars-sample/

Friday, October 25, 2013

India to Mars! A Potential New Space Race Ignites!

Some exciting news is on the horizon, with the announcement that India will be attempting its hand at launching its first interplanetary probe! The Indian Space Research Organization (ISRO) originally scheduled the date of this event to transpire on Oct.28, 2013, but due to delays with the delivery of crucial radar equipment - it has now been postponed for November 5, 2013.

The probe, called Rs 450-crore Mars Orbiter Mission, will India"s first mission to the Red Planet. The spacecraft will be ejected into orbit, then, through a series of complicated maneuvers, it will align its trajectory to keep the probe in sync with Mars" orbit. Because of the short distance separating Mars and Earth, October and November are the ideal months for launch.

Read more here: http://www.fromquarkstoquasars.com/india-to-mars-a-potential-new-space-race-ignites/

Image Credit: NASA