News tagged with radio signal

Many fliers refuse to turn off electronic gadgets

Gadget-dependent fliers are turning a deaf ear to flight attendants' instructions to turn off their devices during takeoff and landing, despite decades of government warnings, a USA TODAY investigation shows.

Dec 23, 2011
4.3 / 5 (7) 70

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 ...

Dec 22, 2011
5 / 5 (6) 1 | with audio podcast

The birth of a telescope 30 times larger than Earth

(PhysOrg.com) -- On 15 November 2011, the Effelsberg 100-meter radio telescope, together with three Russian and one Ukrainian telescope, took part in the first interferometric observations with the orbiting ...

Dec 08, 2011
5 / 5 (21) 5 | with audio podcast

City lights could reveal E.T. civilization

In the search for extraterrestrial intelligence, astronomers have hunted for radio signals and ultra-short laser pulses. In a new paper, Avi Loeb (Harvard-Smithsonian Center for Astrophysics) and Edwin Turner ...

Nov 03, 2011
4.6 / 5 (29) 54 | with audio podcast

Dawn beams back asteroid science data

(PhysOrg.com) -- The Dawn spacecraft has completed a graceful spiral into the first of four planned science orbits during the spacecraft's yearlong visit to Vesta. The spacecraft started taking detailed observations ...

Aug 12, 2011
5 / 5 (9) 5 | with audio podcast

10 years later, NY responders communicate better

(AP) -- On Sept. 11, 2001, as firefighters rushed into the smoldering twin towers, their radios went dead. Police on the scene couldn't hear orders from their superiors. And none of the agencies responding ...

Aug 10, 2011
5 / 5 (1) 0

Clocking Neptune's spin

(PhysOrg.com) -- By tracking atmospheric features on Neptune, a UA planetary scientist has accurately determined the planet's rotation, a feat that had not been previously achieved for any of the gas planets ...

Jun 29, 2011
4.8 / 5 (15) 3 | with audio podcast