Brown dwarfs reveal exoplanets' secrets

Brown dwarfs are smaller than stars, but more massive than giant planets. As such, they provide a natural link between astronomy and planetary science. However, they also show incredible variation when it comes to size, temperature, ...

A multilayer haze system on Saturn's hexagon

A rich variety of meteorological phenomena takes place in the extensive hydrogen atmosphere of Saturn, a world about 10 times the size of the Earth. They help us to better understand similar features in the Earth's atmosphere. ...

Plasmonic metamaterials: From microscopes to invisibility cloaks

(PhysOrg.com) -- A new class of artificial materials called metamaterials -- which derive their properties from carefully engineered, nanostructured building blocks rather than from their chemical composition -- may one day ...

Solar wind from the center of the Earth

High-precision noble gas analyses indicate that solar wind particles from our primordial Sun were encased in the Earth's core over 4.5 billion years ago. Researchers from the Institute of Earth Sciences at Heidelberg University ...

New ultra metal-poor star discovered

An international team of astronomers has detected a new ultra metal-poor star with the lowest ever measured abundance of iron. Designated SMSS J160540.18−144323.1, the newly found object is the most iron-deficient star ...

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