No new contact with stranded Mars probe

The European Space Agency (ESA) said on Friday it had been unable to establish a new link with Russia's stricken Mars probe but added that the craft's orbit seemed to have become more stable.

Cassini delivers holiday treats from Saturn

(PhysOrg.com) -- No team of reindeer, but radio signals flying clear across the solar system from NASA’s Cassini spacecraft have delivered a holiday package of glorious images. The pictures, from Cassini’s imaging ...

Engineers devise two-way radio on a single chip

Two-way communication requires, of course, both send and receive capabilities. But putting them in the same device requires a filter between the send and receive circuits to provide signal isolation.

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