Intermediate Word:  begum -  (a) to "gum up the works"  (b) Muslim lady of high degree  (c) reticule  (d) to deposit
Difficult Word: - steeve    (a) rank amateur  (b) two-handed mug  (c) cylindrically shaped spacer  (d) diagonal beam bracing center ridge

India Accuses Nuclear Superpowers Of Turning Blind Eye To Nuke Bazaar - SpaceDaily  Left:  Pakistan's Abdul Qadeer Khan is but one of many who have made a bazaar out of trading nuclear secrets  Indian Foreign Minister Natwar Singh on Monday accused the world's superpowers of turning a blind eye to nuclear commerce in South Asia, saying it was having an "adverse impact" on his country's security and on global peace. Singh's comments come ahead of a May conference in New York called to review the nuclear Non-Proliferation Treaty (NPT), which bans the transfer of nuclear weapons and the technology to make them. Singh did not name rival Pakistan but made it clear that recent disclosures of proliferation from the neighbouring country was one of the reasons India is staying away from the nuclear treaty. Khan is under virtual house arrest but Pakistan President Pervez Musharraf pardoned him.
Born Again Sols Could Bring Life Again To Dying Stellar Systems - SpaceDaily  Dying stars may warm previously frozen worlds around them to the point where liquid water temperature exists long enough for life to form, according to a new analysis of the evolution of habitable zones around stars by an international team of astronomers. The Sun's habitable zone is presently estimated to range from about 0.95 to 1.67 Astronomical Units (AU). The transit of the habitable zone, for planets between 2 and 9 AU from a solar-mass star, lasts from a few hundred million years to a couple billion years, according to the team. This is about the same amount of time as the estimate for the development of life. The earliest known fossils are about 3.5 billion years old, from bacteria existing about a billion years after our planet's formation. There is indirect evidence that life existed a few hundred million years before the oldest fossils. 

NASA Study Finds Soot May Be Changing The Arctic Environment - SpaceDaily  "This research offers additional evidence black carbon, generated through the process of incomplete combustion, may have a significant warming impact on the Arctic," Koch said. The Arctic is especially susceptible to the impact of human-generated particles and other pollution. In recent years the Arctic has significantly warmed, and sea-ice cover and glacial snow have diminished. Black carbon has been implicated as playing a role in melting ice and snow. About one-third of the soot comes from South Asia, one-third from burning biomass or vegetation around the world, and the remainder from Russia, Europe and North America.   

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