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 …

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 …

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

On the day he planned to make his sacred journey, or <i>hijra</i>, to the Islamic State, 19-year-old Mohammed Hamzah Khan woke up before dawn at his house in …