Science

Keck confirms: Armchair astronomers find planet in four-star system

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An artist's illustration of PH1, a planet discovered by volunteers from the Planet Hunters citizen science project. PH1,...

Single-Crystal, Organic Nanowire High-Performance Phototransistors

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Growing graphene better for future electronics

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New cobalt-graphene catalyst could challenge platinum for use in fuel cells: Performs nearly as well as precious metal catalysts

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Nanoparticles of cobalt attach themselves to a graphene substrate in a single layer. As a catalyst, the cobalt-graphene combination was a...

Jupiter: Turmoil from Below, Battering from Above

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Images in the visible-light and infrared parts of the spectrum highlight the massive changes roiling the atmosphere...

Radioactive decay of titanium powers supernova remnant

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Supernova remnant SNR1987A is located 166 000 light-years away in the Large Magellanic Cloud. The light from...

What's Baking on Titan?

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NASA's Cassini spacecraft obtained this image of a feature shaped like a hot cross bun in the northern region of...

Penn Researchers Find New Way to Prevent Cracking in Nanoparticle Films

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Nanoparticle films crack at certain thicknesses (left). By adding layers of thinner films, cracking can be avoided (right).