Featured Stories

Galileo E1, E5a Performance for Multi-Frequency, Multi-Constellation GBAS

April 1, 2015By
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Analysis of new Galileo signals at an GBAS compares noise and multipath in their performance to GPS L1 and L5. Even after smoothing, Galileo signals perform somewhat better than GPS and are less sensitive to the smoothing time constant. read more

India’s IRNSS-1D Launched into Orbit

March 30, 2015By
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The fourth satellite of IRNSS satellite navigation constellation, IRNSS-1D, was launched onboard PSLV-C27 on Saturday, March 28, according to the Indian Space Research Organization (ISRO). The Polar Satellite Launch Vehicle blasted off at 11:49 GMT (7:49 a.m. EST), or 5:19 p.m. local time, at the Satish Dhawan Space Center on India’s east coast. This is the fourth successful launch of a navigation satellite... read more

Two Galileo Satellites Launched for Europe’s Navigation Constellation

March 27, 2015By
Galileo 7 and 8 were launched into orbit on time today. (Screenshot of  ESA/Arianespace livestream feed.)

UPDATE: The two Galileo satellites are confirmed separated from their Soyuz Fregat upper stage into 22,522 altitude orbit right on schedule, according to ESA. Both are in their planned orbits. Two more Galileo satellites were successfully launched today from Europe’s Spaceport in French Guiana. The seventh and eighth Galileo satellites were lifted aloft on time at 21:46:18 GMT (22:46:18 CET) atop a Soyuz ST-B rocket. The first three... read more

Watch Friday’s Launch of Galileo 7 and 8

March 26, 2015By
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The seventh and eighth Galileo satellites are scheduled for launch Friday, and will be live streamed from the European Space Agency website. read more

GPS IIF-9 Successfully Lifts Off from Cape Canaveral

March 25, 2015By
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The U.S. Air Force’s ninth GPS Block IIF satellite (GPS IIF-9) launched on time Wednesday at 2:36 p.m. EDT (1836 GMT)  from Space Launch Complex 37 at Cape Canaveral Air Force Station, Fla. The GPS satellite has been deployed by the Delta IV rocket. read more

Galileo Satellites Enclosed for Friday’s Launch

March 25, 2015By
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Thousands of engineers have worked on the seventh and eighth navigation satellites of Europe’s Galileo constellation in recent years, but last Friday marked the very last time the spacecraft were glimpsed by human eyes. read more

Launch of IRNSS-1D Now Set for Saturday

March 23, 2015By
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The launch of India’s fourth Navigation Satellite, IRNSS-1D, is now scheduled for 17:19 IST (11:49 UTC) on Saturday, March 28, from Satish Dhawan Space Centre, Sriharikota. The launch was previously scheduled for March 9, then postponed until March 29 to replace a faulty telemetry transmitter on the satellite, according to the Indian Space Research Organization. IRNSS-1D will be fourth in the seven-spacecraft Indian Regional... read more

FAA Gives Amazon Go-Ahead for Delivery Drone Tests

March 20, 2015By
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The Federal Aviation Administration has issued an experimental airworthiness certificate to an Amazon Logistics, Inc. unmanned aircraft (UAS) design that Amazon will use for research and development and crew training. Amazon has said it wants to use drones for delivering packages to customers. The FAA typically issues experimental certificates to manufacturers and technology developers to operate a UAS that does not have... read more