NASA scrubbed efforts to launch the twin Radiation Belt Storm Probe mission spacecraft early Aug. 24, to allow more time to troubleshoot a C-band tracking beacon problem on the United Launch Alliance (ULA) Atlas 5 rocket. ULA made plans for a second attempt to launch the $686 million mission from Cape Canaveral early Aug. 25, while technicians analyzed a “frequency drift” noted late in the first countdown. The 20-min. launch window opens at 4:07 a.m. EDT. Forecasters predicted a 60% chance of favorable weather.

PARIS — In the debate over whether to start work on Europe’s successor to the Ariane 5 launch vehicle, France and Germany have at least agreed on the estimated price tag — €3.8-€5 billion ($5-$6.5 billion) over a decade. Detailed in a report recently delivered to the French and German governments, the cost estimate serves as a point of departure from which the polarized partners will move forward this fall, when European Space Agency (ESA) ministers meet in Caserta, Italy, to settle the organization’s multiyear budget.

XCOR Aerospace, the suborbital commercial spaceflight company founded in Mojave, Calif., announced a second easterly expansion on Aug. 23, outlining plans for flight operations as well as manufacturing and assembly facilities for its winged, two-seat Lynx Mark II reusable launch vehicle in Central Florida.

Confirmed full mobility before 400-meter trek to a spot dubbed 'Glenelg'

NASA’s Astrophysics Division plans to form a 12- to 15-member external team to assess potential science missions for a pair of surplus Hubble-class National Reconnaissance Office (NRO) space telescopes. The team’s work will be focused on addressing study priorities outlined by the National Research Council’s latest decadal survey in astronomy and astrophysics, according to an agency Notice of Intent. The team will assess two options: use of the surveillance satellites “as is,” and with a coronagraph suitable for exoplanet studies.

STATION INTEGRATION: Barrios Technology Ltd. of Houston will lead a team providing a range of mission and program integration support services for the International Space Station under a two-year base contract with options valued at a potential $384.7 million. The base portion of the small business set aside agreement is effective Oct. 1.

NASA and United Launch Alliance are in the final stages of preparing for the Aug. 24 launch of the dual-spacecraft Radiation Belt Storm Probe mission.

The rover will move its own length forward (about three meters), turn right and then move backward the same distance