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Xavier Middleton
Works at Cape Peninsula University of Technology (CPUT)
Attended University of Cape Town
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Xavier Middleton

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A massive ancient ocean once covered nearly half of the northern hemisphere of Mars making the planet a more promising place for alien life to have gained a foothold, Nasa scientists say.

The huge body of water spread over a fifth of the planet’s surface, as great a portion as the Atlantic covers the Earth, and was a mile deep in places. In total, the ocean held 20 million cubic kilometres of water, or more than is found in the Arctic Ocean, the researchers found.

Unveiled by Nasa on Thursday, the compelling evidence for the primitive ocean adds to an emerging picture of Mars as a warm and wet world in its youth, which trickled with streams, winding river deltas, and long-standing lakes, soon after it formed 4.5bn years ago.

The view of the planet’s ancient history radically re-writes what many scientists believed only a decade ago. Back then, flowing water was widely considered to have been a more erratic presence on Mars, gushing forth only rarely, and never forming long-standing seas and oceans.

“A major question has been how much water did Mars actually have when it was young and how did it lose that water?” said Michael Mumma, a senior scientist at Nasa Goddard Space Flight Center in Maryland....

http://www.theguardian.com/science/2015/mar/05/nasa-finds-evidence-of-a-vast-ancient-ocean-on-mars
A huge primitive ocean covered one-fifth of the red planet’s surface, making it warm, wet and ideal for alien life to gain a foothold, scientists say
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New Species Discovered Beneath Ocean Crust | #Geology #GeologyPage

Two miles below the surface of the ocean, researchers have discovered new microbes that “breathe” sulfate.

The microbes, which have yet to be classified and named, exist in massive undersea aquifers — networks of channels in porous rock beneath the ocean where water continually churns. About one-third of the Earth’s biomass is thought to exist in this largely uncharted environment.

Read more : http://www.geologypage.com/2015/02/new-species-discovered-beneath-ocean.html

Geology Page​
www.geologypage.com
Image: C-DEBI researchers deply the ROV Jason to collect samples. Alberto Robador / USC Two miles below the surface of the ocean, researchers have discovered new microbes that “breathe” sulfate. The microbes, which have yet t...
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The number of matriculants who passed in 2014 is much lower than many media reports suggest
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congratulations

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Will Recycling Phosphorus Help Stop Algae Blooms?

"Steve Carpenter, a professor at the University of Wisconsin-Madison and the director of its Center for Limnology, describes phosphorus management as the “keystone” issue for healthy lakes. “If we can get phosphorus under control,” he said, “we have a much better shot at dealing with all of the other problems that the lakes have,” like invasive species, which can swoop in when a lake’s nutrient levels are unbalanced."
A new Wisconsin facility aims to clean up algae-plagued lakes by stripping phosphorus out of wastewater.
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Young master Oliver
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The second bite of a Martian mountain taken by our Curiosity Mars Rover​ rover hints at long-ago effects of water that was more acidic than any evidenced in the rover's first taste of Mount Sharp, a layered rock record of ancient Martian environments. Details: http://go.nasa.gov/1FbGyDV
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Public lecture webcast posted: 
From Cosmic Birth to Living Earth: The Next Great Space Telescope Beyond JWST
Dr. Jason Tumlinson, Space Telescope Science Institute

Are we alone? How did we get here? These are perennial questions that pique our curiosity and probe to the very heart of our existence. While our historical attempts to address these questions have progressed from the philosophical toward the scientific, astronomy is currently in a golden age that promises to get even brighter. New technologies, new telescopes, and new discoveries will bring forth exciting prospects for broad advances in understanding the cosmos and the life within it over the next two decades.

Hosted by Dr. Frank Summers. Recorded live on February 3, 2015 at the Space Telescope Science Institute in Baltimore, MD, USA

https://www.youtube.com/watch?v=MwHTMcV-k74
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It seems Dr Charlie is mesmerised by SABC 3 (and Jeff Probst reruns).
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lol...dr Charlie
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Such a cool video!
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To boldly go where no Xavier has been - unless more of my namesakes sign up.
Exploration of the Planet Mars - missions, videos, images and information
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Have him in circles
53 people
David Gustafsson's profile photo
Zenobia Kloppers's profile photo
Gareth Fouche's profile photo
Hans-Erik Iken's profile photo
Wes Ness's profile photo
Andre Marais's profile photo
Shirley Berko's profile photo
GeoXav's profile photo
carol jean Middleton's profile photo
Education
  • University of Cape Town
    Geology
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Story
Introduction
Geologist, aspiring author and perpetual student - I have an insatiable curiosity about a wide range of subjects (I also own a 14 year old Estwing geological hammer; I call it Mjölnir. It's my special friend).
Bragging rights
Survived the Karoo, Survived 27, Recently ate eel nigiri, Survived 32, Started writing a book, Owned by two cats, Bought a PS4
Work
Occupation
Lecturer
Employment
  • Cape Peninsula University of Technology (CPUT)
    present
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Gender
Male