Did Humans Turn Sahara To Desert?

SCIENTISTS had long believed that Africa’s Sahara Desert was created due to a gradual shift in the Earth’s orbit or natural changes in vegetation.

However, a new paper challenges those theories, forwarding instead another radical idea: what if humans really caused the desertification of the Sahara?

The research paper, written by archaeologist Dr. David Wright of the Seoul National University and published in Frontiers in Earth Science, postulated that humans played an active role in turning the Sahara from a lush, green landscape into a bare area of rocks and sand. 

"In East Asia there are long established theories…

Read more: Did Humans Turn Sahara To Desert?

Hawking: ‘Uncontrolled’ technology dangerous to humankind

FAMED theoretical physicist Stephen Hawking has warned that technology needs to be controlled in order to prevent it from destroying the human race.

The world-renowned physicist, who has spoken out about the dangers of artificial intelligence in the past, believes we need to establish a way of identifying threats quickly, before they have a chance to escalate.

“Since civilization began, aggression has been useful inasmuch as it has definite survival advantages,” he told The Times. 

“It is hard-wired into our genes by Darwinian evolution. Now, however, technology has advanced at such a pace that this aggression may destroy us…

Read more: Hawking: ‘Uncontrolled’ technology dangerous to humankind

Moon to have space tourists by 2018

By Tracy Cabrera

TWO private citizens have paid handsome money to be sent around the Moon in what would mark the farthest humans have ever traveled to deep space, according to American aerospace manufacturer and space transport services company, Space Exploration Technologies Corporation, better known as SpaceX.

This will be the first time that the United States will send astronauts into space since the Apollo missions of the National Aeronautics and Space Administration (NASA) in the 1960s and ‘70s.

 

Significant deposit

“We are excited to announce that SpaceX has been approached to fly two private citizens on a trip…

Read more: Moon to have space tourists by 2018

Bio-hybrid robots to make functional human organs

WHILE scientists have succeeded growing muscles, bones, and mini-organs in laboratories, such organs have been impractical for use in the actual human body.

The solution? Why not try using humanoid robots to grow human organs?

Two scientists from England’s Oxford University recently proposed the use of humanoid robots to grow engineered tissues, in an article recently published in the journal Science Robotics.

"There is no better bioreactor than the human body itself," says study co-author and tissue engineer Pierre Mouthuy, "so the better we can copy that environment, the better our chances to obtain functional engineered tissues are going to…

Read more: Bio-hybrid robots to make functional human organs

7 Earth-sized worlds found around nearby star

NASA has announced the discovery of seven new planets including three within their star's habitable zone.

The remarkable find marks the first time that so many Earth-sized worlds have ever been found within a single solar system. The star, Trappist-1, is situated around 40 light years away.

Even more intriguing is the fact that three of these planets are located within the star's habitable zone - the region in which the temperature is "just right" for liquid water to exist.

The news is particularly exciting because with the next generation of telescopes it should be possible to determine exactly what…

Read more: 7 Earth-sized worlds found around nearby star

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