Why the US Hasn’t Sent Humans to Mars yet

Why the US Hasn’t Sent Humans to Mars yet

Earlier this month, NASA announced it was funding a revolutionary high-thrust rocket — called a Pulsed Plasma Rocket — that could make crewed missions to Mars in just two months. That’s seven months faster than it’d take with current technology and would drastically reduce the risk and cost of a crewed Mars mission, according to …

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Drone study reveals how water shapes mountains over time • Earth.com

Drone study reveals how water shapes mountains over time • Earth.com

A recent study led by Penn State scientists and published in Science Advances reveals new insights into how water shapes mountainous terrain over geological time.  Using drone technology, the team’s research in central Taiwan has identified a critical link between the size of river boulders and river steepness, shedding light on the relationship between underground …

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Scientists have 20-minute “conversation” with a humpback whale • Earth.com

Scientists have 20-minute “conversation” with a humpback whale • Earth.com

In an unprecedented encounter, a research team successfully engaged in a “conversation” with a humpback whale named Twain. The team, known as Whale-SETI, has been conducting research on humpback whale communication systems, aiming to develop intelligence filters for the search for extraterrestrial life. Scientists from the SETI Institute, University of California Davis, and the Alaska …

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