Friday, July 17, 2015

Argonauts

The Argonauts (Greek: Αργοναυται) were a band of heroes who accompanied Jason to Colchis in his quest to find the Golden Fleece.  As many as 85 names are listed in different sources but some of the prominent better known are, Hercules (son of Zeus), Asclepius, Atlanta, Castor and Pollux (Twins or Gemini), Laertes who was Odysseus’ father, Perseus and Amyrus who was Poseidon’s son. 
The Argonauts were named after their ship, Argo that was built by Argus with goddess Athena’s help.    
After the death of King Cretos, Pelias usurped the Iolcan throne from his half-brother Aeson.  Because of this unlawful act, an oracle warned him that a descendant of Aeolus would seek revenge. Pelias put to death every descendant of Aeolus, but spared Aeson because of the pleas of their mother Tyro. Aeson married Alcimene who bore him a son named Jason.  Alcimede saved her baby by faking a stillbirth and a burial and took baby Jason to Mount Pelion where he was raised by the centaur Chiron, the trainer of heroes.  
 When Jason was 20 years old, an oracle ordered him to head to the Iolcan court. While traveling Jason lost his sandal in Anavros River while helping an old woman who was Hera in disguise.  Another oracle warned Pelias to be on his guard against a one-sandal man.  At a sacrifice to Poseidon Pelias noticed a youth with only one sandal who was Jason his nephew.  As Pelias could not kill Jason because prominent kings of the Aeolian family were present, he asked Jason instead: "What would you do if an oracle announced that one of your fellow-citizens were destined to kill you?" Jason replied that he would send him to go and fetch the Golden Fleece, words that were put in his mouth by Hera.  
Jason learned later that according to an oracle, Iolcus would never prosper unless Prixus’s ghost was taken back in a ship, together with the golden ram's fleece. The fleece now hung from a tree in the grove at Colchis, guarded night and day by a dragon that never slept.   However, Hera supported Jason's during his quest to find and bring the fleece back on Argo and upon his return to become the King of Iolcus.   

Tuesday, July 14, 2015

Pluto


About 7:50 a.m. Tuesday, NASA’s New Horizons spacecraft made its closest pass by Pluto, coming within 7,800 miles of the surface. The craft’s journey at a speed of 13,000 mph started 9 years ago and has traveled approximately 3 billion miles of space.

          New Horizons' flyby of Pluto is a key moment in the history of space exploration as it brings to completion the endeavor that started more than 50 years ago and continuing to today.  It marks the fact that all planets in our solar system have been visited. 

          Preliminary images and instrument readings have revealed an icy sphere—about two-thirds the size of Earth’s moon. Pluto is 2,370 kilometers across, making it the biggest known object beyond the orbit of Neptune.

          Its surface is marked by chasms and craters and an enigmatic heart-shaped region. The dwarf planet has a polar ice cap composed of frozen methane and nitrogen.