"To properly advance this critical technology to be able to support a future lunar economy, high power energy generation on Mars, and to strengthen our national security in space, it is imperative the agency move quickly," US transport secretary Sean Duffy, who was appointed temporary head of Nasa by President Donald Trump, wrote to Nasa, according to the New York Times.
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Hillary Clinton said that one Republican lawmaker asked her a line of questions about “vile, bogus conspiracy theories.”
But the rapid rise in electricity demand could make it more difficult to meet the target.