How hard did it rain on Mars?

Heavy rain on Mars reshaped the planet’s impact craters and carved out river-like channels in its surface billions of years ago, according to a new study. Scientists show that changes in the atmosphere on Mars made it rain harder and harder, which had a similar effect on the planet’s surface as we see on Earth. …

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A Defense of the Reality of Time

Time isn’t just another dimension, argues Tim Maudlin. To make his case, he’s had to reinvent geometry. …

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Energy decay in graphene resonators

Researchers have observed a new way of energy dissipation in graphene nano-resonators, outlines a new report.

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New ‘styrofoam’ planet provides tools in search for habitable planets

Researchers have discovered a new planet orbiting a star 320 light years from Earth that has the density of styrofoam. This ‘puffy’ exoplanet may hold opportunities for testing atmospheres that will be useful when assessing future planets for signs of life. …

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Mars rover Opportunity begins study of Perseverance Valley’s origin

NASA’s Mars Exploration Rover Opportunity has reached the main destination of its current two-year extended mission — an ancient fluid-carved valley incised on the inner slope of a vast crater’s rim. …

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Entropy landscape sheds light on quantum mystery

By precisely measuring the entropy of a supercooled cerium copper gold alloy with baffling electronic properties, physicists have provided further evidence about the common causes of high-temperature superconductivity and similar phenomena.

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Solving one of nature’s great puzzles: What drives the accelerating expansion of the universe?

Physicists may have solved one of nature’s great puzzles: What causes the accelerating expansion of our universe? …

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‘Switchable’ smart windows reduce energy consumption significantly

Smart windows that act as blinds in the summer and let all the sunlight through in the winter. That’s the idea of the reflective windows that are able to reflect invisible infrared light but allow visible light through. In addition these windows can be ‘switched on and off’. This new technology cuts the energy consumption for cooling and heating buildings by 12%.

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Why Quantum Computers Might Not Break Cryptography

A new paper claims that a common digital security system could be tweaked to withstand attacks even from a powerful quantum computer. …

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Hydrogen bonds directly detected for the first time

For the first time, scientists have succeeded in studying the strength of hydrogen bonds in a single molecule using an atomic force microscope.

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