Showing posts with label Antares. Show all posts
Showing posts with label Antares. Show all posts

Sunday, July 5, 2015

Third time"s the charm? - http://clapway.com/2015/07/05/resupply-mission-successfully-reaches-the-iss-234/

Astronauts aboard the International Space Station (ISS) breathed a collective sigh of relief after receiving much-needed supplies thanks to the ISS resupply mission.


ISS RESUPPLY MISSION SUCCESS AT LAST


Russia’s Progress 60 cargo spaceship launched atop a Soyuz-U rocket from the Baikonur Cosmodrome in Kazakhstan at 12:55 a.m. ET on Friday, July 3. The craft reached orbit nine minutes after launch. And it successfully docked with the ISS at 3:11 a.m. ET on Sunday, July 5.


Progress 60 delivered more than three tons of supplies including food, water, fuel, oxygen, spare parts, and experiments to the ISS.


The spacecraft will remain docked to the ISS for four months.


This successful ISS resupply mission launch and docking comes after a string of unsuccessful attempts to resupply the ISS with essential supplies.



SpaceX’s Falcon 9 rocket broke apart shortly after launch on June 28, destroying its cargo-carrying Dragon spacecraft. A Russian Progress cargo spaceship spiraled out of control and was lost shortly after its launch in April 2015. And Orbital Sciences’ Antares rocket and Cygnus cargo capsule exploded just above its launch platform in October 2014.


CHRISTMAS IN JULY


The station’s crew is thrilled by the successful ISS resupply mission, Progress 60 mission, describing that receiving the needed supplies feels like “Christmas in July.”



Because of the previous failed missions, the crew was just months away from needing to break into emergency reserve supplies.


The new supplies should be enough to sustain the station through November. The next mission to resupply the ISS is Japan’s H-II Transfer Vehicle, scheduled to launch in mid-August.


ROAD TO RECOVERY


SpaceX is still investigating the cause of the June 28 Falcon 9 failure. The private space company hopes to learn from its first failed ISS resupply attempt and continue improving its space flight capabilities.


SpaceX plans to test an in-flight abort feature to demonstrate the ability of the Dragon capsule to separate from its rocket in the event of a rocket malfunction—something that could save cargo and, eventually, astronauts’ lives, if a similar event like the June 28 ISS resupply mission rocket failure occurs.


The company recently announced that it will launch this abort test from the Kennedy Space Center in Cape Canaveral, Florida instead of the originally planned location of Vandenberg Air Force Base in California.


Orbital Sciences has essentially been grounded since the failure of its Antares rocket. But the company’s Cygnus spacecraft is scheduled to launch on a United Launch Alliance Atlas 5 rocket in late 2015.



 


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Resupply Mission Successfully Reaches the ISS

Sunday, June 28, 2015

You win some, you lose some. - http://clapway.com/2015/06/28/spacex-falcon-9-rocket-disintegrates-after-launch-234/

A SpaceX rocket launched from Cape Canaveral, Florida on the morning of Sunday, June 28. But it broke apart shortly after takeoff.


FALCON 9 ROCKET EXPLODES


SpaceX is the first commercial space company to successfully deliver cargo to the International Space Station (ISS). In 2012, the company made history when its unmanned Dragon capsule successfully docked with the ISS, delivered cargo, then safely returned to Earth.


The company attempted its seventh resupply mission on June 28. A SpaceX Falcon 9 rocket blasted off with the Dragon spacecraft at 10:21 a.m. local time. But the rocket disintegrated just minutes after takeoff, destroying Dragon and its more than two and a half tons of equipment, experiments, and supplies.


Shortly after the incident, the company’s CEO, Elon Musk, posted on Twitter, “Falcon 9 experienced a problem shortly before first stage shutdown. Will provide more info as soon as we review the data.”



After evaluating preliminary data, Musk reported, “There was an overpressure event in the upper stage liquid oxygen tank. Data suggests counterintuitive cause.”


The SpaceX anomaly team will investigate the incident further to determine precisely what caused the rocket to explode.



THREE ISS SUPPLY MISSION FAILURES


This failure is SpaceX’s first failed ISS mission. But, unfortunately for the astronauts aboard the space station, this isn’t the first failed resupply mission.


Russia’s Progress cargo spaceship was lost shortly after its launch in April 2015. And Orbital Sciences’ Antares rocket at Cygnus capsule broke apart near its launch platform in October 2014.


Although these missions deliver important scientific research projects to the ISS, they also supply the astronauts with important basics like food and oxygen. So the failure of these missions and the loss of necessary cargo makes things difficult for the space station’s inhabitants. The astronauts would reportedly need to tap into reserve supplies if no cargo arrives by September 2015. But two supply missions are scheduled before then.


NO LANDING TEST


Part of SpaceX’s recent mission was supposed to include an attempted vertical landing of the Falcon 9 on a platform in the Atlantic Ocean following the separation of the Dragon capsule. But, obviously, the mission didn’t get that far.


SpaceX wants to master the process of landing its rockets in order to reuse them for future missions. Reusable rockets will considerably reduce launch expenses.


The company attempted a landing in January 2015, but that attempt failed. The company tried again in April 2015 with better results. The rocket got within ten meters of its target, but it descended too hard and couldn’t stick its landing.



 


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SpaceX Falcon 9 Rocket Disintegrates After Launch