April 10th, 2013
Every year on April 12, people around the globe gather to celebrate the anniversary of the launch of the first person to orbit the Earth, Soviet cosmonaut Yuri Gagarin.
The official coordinating website of the events, yurisnight.net, says:
Yuri’s Night is a global celebration of humanity’s past, present, and future in space. Read More
April 4th, 2013
Since North Korea’s missiles are in the news and seem to be generating confusion, I’m giving here my understanding of where these various systems stand, based in part of my modeling of their capabilities. Read More
March 22nd, 2013
Thirty years ago tomorrow—March 23, 1983—President Ronald Reagan’s “Star Wars” speech spawned an enthusiasm for missile defense that even today dominates defense discussions in Washington. Much has changed in those 30 years, so where are we? Read More
February 22nd, 2013
North Korea’s launches of its Unha-3 rocket in April and December 2012, along with the recovery and analysis of debris from the December launch, have provided a lot of new information that was not previously available. That information has allowed me and others to reassess our earlier conclusions about Pyongyang’s rocket, and has led to some significant changes. Read More
February 10th, 2013
In assessing the ballistic missile threat, a key issue is estimating how long it might take countries like North Korea and Iran to build missiles that could carry a nuclear-warhead-sized payload to the United States. Both countries use liquid fuel in their satellite launchers and have developed that technology further than solid fuel. Read More
February 7th, 2013
Ed Lyman sent a letter today to NRC Chair Allison Macfarlane urging the NRC to reject recent requests by legislators to weaken critical post-Fukushima safety reforms and slow down their implementation. His letter is responding to recent letters sent to the NRC by Senate and House Republicans complaining that the agency is moving too quickly with costly post-Fukushima safety upgrade requirements. Read More
January 25th, 2013
South Korea recently released a short summary (in Korean) of its analysis of the pieces it recovered of North Korea’s first stage from its Dec. 11 satellite launch. Parts of the analysis have been showing up in the South Korean press in the last few days. Read More
January 24th, 2013
Last Tuesday, January 15, the NRC released its decision not to accept Duke Energy’s request for an extension to comply with fire regulations at its Oconee reactors, which I discussed in an earlier post. Read More
January 11th, 2013
Dave Lochbaum was one of nine experts testifying on emergency pressure-relief vents at an NRC hearing last Wednesday, December 9. Read More
January 3rd, 2013
One of the top safety issues the NRC needs to address is requiring nuclear plants to comply with fire regulations to make sure that fires can’t disable multiple layers of safety features that could lead to core damage. Read More
© 2013
