Jorge Arellano

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Evidence of liquid water found on Mars

<b>Nasa's Curiosity rover has found that water can exist as a liquid near the Martian surface.</b><p>Mars should be too cold to support liquid water at the surface, but salts in the soil lower its freezing point - allowing briny films to form.<p>The results lend credence to a theory that dark streaks seen on …

Geoscience

What Cockroaches With Backpacks Can Do. Ah-mazing

Cockroaches are widely despised. They're attracted to filth. They frighten people, even give them nightmares.<p>But for a team of scientists at Texas A&M University, the roach is a hero: the first animal that humans might successfully transform into a robot, a hybrid of insect and machine that we can …

Robotics

Teenage Jihad: Inside the World of American Kids Seduced by ISIS

Why did three American kids from the suburbs of Chicago try to run away to the Islamic state, and should the Feds treat them as terrorists?<p>On the day …