Monday, July 20, 2009

215th American spacewalk

Spacewalkers Dave Wolf and Tom Marshburn wrapped up a six hour, 53 minute spacewalk at 6:20 p.m. EDT.

Wolf and Marshburn completed most of their planned tasks, deferring a video camera setup to a future spacewalk. Wolf removed three hardware spares – a Ku-Band Space-to-Ground Antenna, a Pump Module and a Linear Drive Unit, from the Integrated Cargo Carrier – Vertical Light Deployable (ICC-VLD). With each spare in hand, Wolf rode the space station robotic arm from the ICC to the Port 3 external stowage platform (ESP-3), where he and Marshburn attached them for long-term storage. Julie Payette and Doug Hurley operated the robotic arm. Marshburn mounted a grapple bar onto an ammonia tank assembly so that the STS-128 space shuttle mission in August can move the tank by robotic arm. Marshburn also attached two insulation sleeves for the Station to Shuttle Power Transfer System.

This was the second of five STS-127 spacewalks, the 127th in support of International Space Station assembly and maintenance, totaling 792 hours, 31 minutes. It was the 215th American spacewalk in history. It was Wolf’s sixth spacewalk, totaling 38 hours, 44 minutes and placing him 19th on the all-time list. It was Marshburn’s first excursion.

NASA Television airs a Mission Status briefing at 8:30 p.m. with STS-127 Lead Flight Director Holly Ridings and STS-127 Lead Extravehicular Activity Officer Kieth Johnson.

Saturday, July 04, 2009

Do you know why we celebrate DEEPAWALI OR DEWALI?

The most beautiful of all Indian festivals, Diwali is a celebration of lights.

In the South, Diwali festival often commemorates the conquering of the Asura Naraka, a powerful king of Assam, who imprisoned thousands of inhabitants. It was Krishna who was finally able to subdue Naraka and free the prisoners. Diwali Festival in the south is celebrated in the Tamil month of Aipasi (thula month) 'naraka chaturdasi' thithi, preceding amavasai. To commemorate this event, people in Peninsular India wake before sunrise and make imitation blood by mixing kumkum or vermillion with oil. After crushing underfoot a bitter fruit as a symbol of the demon, they apply the 'blood' triumphantly on their foreheads. They then have ritual oil baths, anointing themselves with sandalwood paste. Visits to temples for prayers are followed by large family breakfasts of fruits and a variety of sweets.

Another story of king Bali is attached to the Diwali festival in South India. According to the Hindu mythology, King Bali was a benevolent demon king. He was so powerful that he became a threat to the power of celestial deities and their kingdoms. And Lord Vishnu came as the dwarf mendicant Vamana, to dilute Bali's power. Vamana shrewdly asked the king for land that would cover three steps as he walked. The king happily granted this gift. Having tricked Bali, Vishnu revealed himself in the full glory of his godhood. He covered the heaven in his first step and the earth in his second. Realising that he was pitted against the mighty Vishnu, Bali surrendered and offered his own head, inviting Vishnu to step on it. Vishnu pushed him into the nether world with his foot. In return Vishnu gave him the lamp of knowledge to light up the dark underworld. He also gave him a blessing that he would return to his people once a year to light millions of lamps from this one lamp so that on the dark new moon light of Diwali, the blinding darkness of ignorance, greed, jealousy, lust, anger, ego, and laziness would be dispelled and the radiance of knowledge, wisdom and friendship would prevail. Each year on Diwali day, even today, one lamp lights another and like a flame burning steadily on a windless night, brings a message of peace and harmony to the world.