Clem Brown

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Curiosity Finds A Former Lake On Mars

Was it home to life? It could have been. Meanwhile, the search for organic compounds continues.<p>Once upon a time, in the lowest part of Gale Crater on Mars, there was a lake about the length and width of one of the Finger Lakes in upstate New York. It was fed by rivers that ran into it. If you stood …

Geophysics

Brazilian Leader's 1976 Death Found To Be A Military Murder

For years, a car accident has been blamed in the 1976 death of former Brazilian President Juscelino Kubitschek. But a new inquiry has found the politician was murdered by the military dictatorship that ruled Brazil for 21 years.<p>"We have no doubt that Juscelino Kubitschek was the victim of a …

South Korea warns of North Korea's 'reign of terror'

<b>South Korea's president has warned that ties with the communist North could become more unstable following the removal of a major powerbroker.</b><p>President Park Geun-hye said the North was "carrying out a reign of terror", after news of the purge of Chang Song-thaek, uncle of leader Kim Jong-un.<p>North …

North Korea

Mars One unveils plan for private Red Planet robotic mission in 2018

Before the nascent Mars One venture launches humans on a one-way trip to the Red Planet, it wants to send a lander and an orbiter there in 2018 — and now it has signed up Lockheed Martin and Surrey Satellite Technology to work on concepts for the hardware.<p>The lander's design would be based on the …

Newly discovered greenhouse gas '7,000 times more powerful than CO2'

A new greenhouse gas that is 7,000 times more powerful than carbon dioxide at warming the Earth has been discovered by researchers in Toronto.<p>The newly discovered gas, perfluorotributylamine (PFTBA), has been in use by the electrical industry since the mid-20th century.<p>The chemical, that does not …

Snow Follows On Heels Of Ice Storm In The East

(This post was updated at 5:30 p.m. ET)<p>A fast-moving winter storm swept through the Eastern U.S. on Tuesday, bringing several inches of snow to the region, causing flights to be canceled, traffic to be snarled and federal government offices in Washington, D.C., to be shut for the day.<p>Northern …

Hollande arrives in Central African Republic after two French troops killed

The French president, François Hollande, flew into the Central African Republic on Tuesday evening following an announcement earlier confirming the deaths of two French soldiers in clashes with militia forces they had ordered to disarm – the first losses in the French campaign in its former …

Bangladesh stays execution of politician

Bangladesh's highest court has halted the execution of a top opposition leader, just an hour and a half before he was set to become the first person executed for war crimes committed during the country's 1971 war of independence.<p>Abdul Qader Mollah, a leader of the Jamaat-e-Islami political party, …