Monday, November 18, 2019

Mysterious oxygen spike seen on Mars puzzles scientists

NASA's Curiosity Mars rover pauses at the lower region of Mount Sharp to take a self-portrait in 2015. The rover has been exploring this region of the red planet since 2012, collecting data that includes atmospheric readings.

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After more than six years sniffing the red planet's thin, frigid air, a NASA rover has made a startling discovery: There's more oxygen gas in the Martian atmosphere than scientists expected, and what's there is behaving strangely.

Publisher: Science
Date: 2019-11-18T06:00:00-0500
Twitter: @NatGeoScience
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Many things are taking place:

Mars mission blow: Experts reveal major health consequences of space travel | Science | News |

According to the research published in the journal JAMA Network Open, space travellers are at an increased risk of strokes, blood clots, decrease in plasma volume – which makes up 55 percent of blood and contains water, salts, enzymes, antibodies and other proteins – and even backwards blood flow.

The international collaboration of researchers said the main issues came within the internal jugular vein (IJV), which runs down the neck from the brain.

Publisher: Express.co.uk
Date: 2019-11-18T11:06:00+00:00
Author: Sean Martin
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Deep Clustering for Mars Rover image datasets

In this paper, we build autoencoders to learn a latent space from unlabeled image datasets obtained from the Mars rover. Then, once the latent feature space has been learnt, we use k-means to cluster the data. We test the performance of the algorithm on a smaller labeled dataset, and report good accuracy and concordance with the ground truth labels. This is the first attempt to use deep learning based unsupervised algorithms to cluster Mars Rover images.

Subjects: Instrumentation and Methods for Astrophysics (astro-ph.IM); Earth and Planetary Astrophysics (astro-ph.EP); Machine Learning (cs.LG)

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Hibernation Could Reduce Spacecraft Size For Human Trips To Mars, Says ESA

ESA's plan for hibernation might alleviate the need for such large spacecraft for human travel to ... [+] Mars.

The European Space Agency (ESA) is studying putting astronauts in hibernation for a future trip to Mars and back in hopes of radically reducing spacecraft architecture. By removing a spacecraft's crew quarters, ESA says spacecraft mass could be reduced by a third. There would be a similar reduction in consumables, equivalent to several tons of saved mass. 

Publisher: Forbes
Date: 2019-11-18
Author: Bruce Dorminey
Twitter: @forbes
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In case you are keeping track:

Mars' plan to fix a 'broken' global supply chain with $1 billion - Business Insider

Mars' CEO believes the global supply chain is "broken" — and that it is companies' responsibility to fix it. 

"In total, we're taking more out of the planet than is sustainable. And we have to fix that," Mars CEO Grant Reid recently told Business Insider. 

In 2017, Mars committed $1 billion to its "Sustainability in a Generation" plan, which attempts to tackle climate change by reducing the carbon footprint of its business and supply chain by more than 60% by 2050. The company has also aligned itself with other businesses on the issue, including the Business for Inclusive Growth coalition sponsored by French President Emmanuel Macron. 

Publisher: Business Insider
Date: 2019-11-17
Author: Kate Taylor Clayton Dyer
Twitter: @BI_RetailNews
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Mars' Ellie Coffield wins Moe Rosensteel Award - Trib HSSN
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Publisher: Trib HSSN
Date: 2019-11-19T01:09:13-05:00
Author: Bill Beckner Jr
Twitter: @TribLiveHSSN
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See Mercury at its best meet Mars in the dawn sky – Astronomy Now

Innermost planet Mercury puts on its best morning display of the year for Northern Hemisphere observers from late November to early December. Skywatchers in the British Isles should find a location offering an unobstructed view of the southeast horizon about 45 minutes before sunrise to get the best views. This looping animation shows the changing configuration of Mercury, Mars and Virgo’s brightest star, Spica, from 18 November through 3 December at dawn.

Any opportunity to get a glimpse of this elusive and fast-moving planet is well worth getting up a little earlier for, particularly when – as now – you get a chance to see Mars nearby at the same time. As with any observation made in the eastern sky during dawn twilight, timing is everything: you need to view late enough that Mercury gets a chance to rise high enough above the horizon murk, but not so late that impending sunrise makes the sky too bright to see it.

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Final Call for Mars in Libra by Holiday Mathis – Boston Herald

This is the last chance to take advantage of the Mars transit through friendly, harmonizing, diplomatic Libra. Tomorrow begins a change of tone for the warrior planet as he puts on a face that says, “No more Mr. Nice Guy.” Relationships won’t get contentious, but they will develop in intensity and directness as the weeks progress.

ARIES (March 21-April 19). Your talent is like a fire. It needs open air to burn. If you hide your light too long, it will be like a flame under a candle snuffer: suffocated and extinguished until you reignite.

Publisher: Boston Herald
Date: 2019-11-17T06:00:00+00:00
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