“Carrying several tons of supplies and scientific experiments, the unpiloted SpaceX Dragon cargo craft arrived at the International Space Station on February 23 following its launch atop the SpaceX Falcon 9 rocket from the refurbished Launch Pad 39-A at the Kennedy Space Center, Florida.
Following the arrival […], the station crew used the Canadarm2 robotic arm to capture the Dragon. Ground controllers then sent commands for the robot arm to maneuver the vehicle to the Earth-facing port of the Harmony module where it was installed and bolted into place. The Dragon will spend about a month at the space station while the crew unloads the almost 5,500 pounds of supplies and scientific experiments delivered by the Dragon.”
“The unpiloted Russian ISS Progress 66 cargo craft launched from the Baikonur Cosmodrome in Kazakhstan on February 22 atop a Soyuz booster on a two-day journey to deliver almost three tons of food, fuel and supplies for the residents of the International Space Station. The vehicle is scheduled to automatically dock to the Pirs Docking Compartment on the Russian segment of the complex on February 24. It was the first launch of a Progress resupply craft to the station since a launch failure last December 1 resulted in the loss of the ISS Progress 65 ship.”
“SpaceX CRS-10, also known as SpX-10 or simply CRS-10, is a cargo resupply mission to the International Space Station. The mission was contracted by NASA and was launched by SpaceX aboard a Dragon spacecraft on 19 February 2017. The mission is currently active, with the Dragon spacecraft in orbit adjusting and preparing for docking to the ISS, which is expected between 21 February and 22 February 2017. CRS-10 is part of the original order of twelve missions awarded to SpaceX under the Commercial Resupply Services contract. As of June 2016, a NASA Inspector General report had this mission manifested for November 2016. The launch was put on hold pending investigation of the pad explosion in September 2016, with a tentative date no earlier than January 2017, subsequently set for 18 February.
CRS-10 was launched from Kennedy Space Center Launch Complex 39 Pad A, the first launch from the complex since STS-135 on 8 July 2011, the last flight of the Space Shuttle program; this complex is also where the Apollo missions were launched. On 12 February 2017, SpaceX successfully completed a static fire test of the Falcon 9 engines on Pad 39A. An initial launch attempt on 18 February 2017 was scrubbed 13 seconds before its 15:01 UTC launch due to a thrust vector control system issue, resulting in a 24-hour hold for launch no earlier than 19 February at 14:38:59 UTC.
Following the successful Launch on 19 February, the first stage returned and landed safely in landing Zone 1.
NASA has contracted for the CRS-10 mission from SpaceX and therefore determines the primary payload, date/time of launch, and orbital parameters for the Dragon space capsule. CRS-10 is expected to carry 1,530 kg (3,373.1 lb) of pressurized mass and 960 kg (2,116.4 lb) unpressurized. External payloads on the CRS-10 spacecraft are the SAGE III Earth observation experiment and its Nadir Viewing Platform (NVP), and the U.S. Department of Defense’s Space Test Program H5 (STP-H5) package, including the Raven navigation investigation and the Lightning Imaging Sensor. Some science payloads include ACME, LMM Biophysics, ZBOT, and CIR/Cool Flames.”
“Dawn delves into the unknown and achieves what’s never been attempted before. A mission in NASA’s Discovery Program, Dawn orbited and explored the giant protoplanet Vesta in 2011-2012, and now it is in orbit and exploring a second new world, dwarf planet Ceres.
Dawn’s goal is to characterize the conditions and processes of its earliest history by investigating in detail two of the largest protoplanets remaining intact since their formation. Ceres and Vesta reside in the main asteroid belt, the extensive region between Mars and Jupiter, along with many other smaller bodies. Each followed a very different evolutionary path, constrained by the diversity of processes that operated during the first few million years of solar system evolution. When Dawn visits Ceres and Vesta, the spacecraft steps us back in solar system time.”
“ESA and European industry are currently developing a new-generation launcher: Ariane 6. This follows the decision taken at the ESA Council meeting at Ministerial level in December 2014, to maintain Europe’s leadership in the fast-changing commercial launch service market while responding to the needs of European institutional missions.
This move is associated with a change in the governance of the European launcher sector, based on a sharing of responsibility, cost and risk by ESA and industry. The participating states are: Austria, Belgium, Czech Republic, France, Germany, Ireland, Italy, Netherlands, Norway, Romania, Spain, Sweden and Switzerland.
The overarching aim of Ariane 6 is to provide guaranteed access to space for Europe at a competitive price without requiring public sector support for exploitation. Different concepts have been examined for Ariane 6 such as single- and dual-payloads, solid or cryogenic propulsion for the main stage, and the number of stages (three or more), all to cover a wide range of missions: GEO, either directly or through intermediate orbits, in particular GTO and LEO, Polar/SSO, MEO or MTO.
The targeted payload performance of Ariane 6 is over 4.5 t for polar/Sun-synchronous orbit missions at 800 km altitude and the injection of two first-generation Galileo satellites. Ariane 6 can loft a payload mass of 4.5–10.5 tonnes in equivalent geostationary transfer orbit.
The exploitation cost of the Ariane 6 launch system is its key driver. Launch service costs will be halved, while maintaining reliability by reusing the trusted engines of Ariane 5. The first flight is scheduled for 2020.
Ariane 6 has a ‘PHH’ configuration, indicating the sequence of stages: a first stage using strap-on boosters based on solid propulsion (P) and a second and third stage using cryogenic liquid oxygen and hydrogen propulsion (H).
Ariane 6 provides a modular architecture using either two boosters (Ariane 62) or four boosters (Ariane 64), depending on the required performance. Two or four P120 solid-propellant boosters will be common with Vega C, an evolution of the current Vega launcher.
The main stage containing liquid oxygen and hydrogen is based around the Vulcain 2 engine of Ariane 5.
The upper stage of Ariane 6 builds on developments for the Adapted Ariane 5 ME, and cryogenic propulsion using the Vinci engine. It will be restartable and have direct deorbiting features to mitigate space debris.
Flexibility is a design characteristic for A64 and A62. The launcher responds to different market needs by varying the number of boosters in the configuration.
The A62, with two P120 solid boosters, will be used mainly in single-launch configurations, while the A64 – with four P120 solids – will enable double launch of medium-class satellites over 4.5–5 t, mainly for commercial market needs.
The main characteristics of the Ariane 6 concept are: the total length of the vehicle is about 62 m; the cryogenic main stage holds about 150 t of propellants, the upper stage holds about 30 t; the external diameter of the cryogenic main stage and upper stages including the part that connects the fairing is about 5.4 m.”
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