The civil upheaval in the Ukraine has had no discernible effect on production of the core stage of Orbital Sciences Corp.’s Antares launch vehicle, according to a company spokesman, who said the company has enough Ukrainian hardware on hand to continue launching cargo to the International Space Station in its pressurized Cygnus capsule into early 2015.

Final reports on the 2012 Delta IV anomaly that generated low thrust in its RL-10B-2 upper-stage engine are expected in April, but the successful launch of a Delta IV with the GPS IIF-5 spacecraft Feb. 20 indicates fixes added to the launcher’s engine-processing procedures worked as planned.

HOUSTON — NASA estimates it will spend between $8 billion and $11.2 billion on U.S. commercial resupply services in support of the six-person International Space Station between 2017 and 2024, according to a request for information (RFI) related to a forthcoming Commercial Resupply Services 2 (CRS-2) contract announcement. The agreement will call on providers to deliver 14,250-16,750 kg (31,400-36,900 lb.) of pressurized cargo and 1,500-4,000 kg of unpressurized cargo annually.

NEW DELHI — India is lining up international customers for its Polar Satellite Launch Vehicle (PSLV) as the country looks to boost its share of the global launch market. Antrix Corp., the commercial arm of the Indian Space Research Organization (ISRO), has signed an agreement with Singapore Technologies Electronics Ltd. to launch its first commercial satellite, TeLEOS-1.

ORLANDO, Fla. — The U.S. Air Force is planning to launch two new and previously classified space situational awareness satellites into geosynchronous orbit this year, according to Gen. William Shelton, who leads Air Force Space Command. The spacecraft were developed covertly by the Air Force and Orbital Sciences under the Geosynchronous Space Situational Awareness Program (GSAP), according to service officials.

LOS ANGELES — Engineers at NASA’s Dryden Flight Research Center are completing key load tests on elements of a large hypersonic inflatable aerodynamic decelerator (HIAD) that ultimately could enable larger payloads to be delivered to the surface of other planets, or returned to Earth.

HOUSTON — After a dozen years, NASA’s university-level student rocket competition is growing more difficult — much more like the real-life efforts to introduce powerful new propulsion sources like the agency’s deep space-enabling Space Launch System heavy lift rocket.

Satellite observations of unique, finger-like dark features on steep slopes of the mid-southern latitudes of Mars hint at dense briny water flows during the summer season, according to findings from 11 researchers associated with NASA’s Mars Reconnaissance Orbiter (MRO) and Mars Odyssey missions.