Researchers have "cloaked" a three-dimensional object, making it invisible from all angles, for the first time.
However, the demonstration works only for waves in the microwave region of the electromagnetic spectrum.
UK scientists have detected a huge dome of fresh water that is developing in the western Arctic Ocean.
The bulge is some 8,000 cubic km in size and has risen by about 15cm since 2002.
Europe's Herschel space telescope has produced a majestic new version of a classic astronomical target - the Eagle Nebula (also called M16).
This dense region of gas and dust some 6,500 light-years from Earth hosts copious numbers of bright new stars.
Russia's failed Mars probe, Phobos-Grunt, is about to fall back to Earth - quite probably on Sunday.
The spacecraft has been losing altitude rapidly in recent days and will soon be pulled into the top of the atmosphere where it will be destroyed.
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Researchers have "cloaked" a three-dimensional object, making it invisible from all angles, for the first time.
UK scientists have detected a huge dome of fresh water that is developing in the western Arctic Ocean.
Europe's Herschel space telescope has produced a majestic new version of a classic astronomical target - the Eagle Nebula (also called M16).
Russia's failed Mars probe, Phobos-Grunt, is about to fall back to Earth - quite probably on Sunday.