Wednesday, April 23, 2008 By Jocelyn Rice Topic: New technologies aim to reduce the risks and improve the accuracy of prenatal genetic tests. May Jun Issue Topic: Soldiers with traumatic brain injuries face an uncertain future. Topic: Google's App Engine is the latest service to reduce operating costs for Web startups. Top Stories Tuesday, April 22, 2008 May Jun Issue By Emily Singer Topic: Thousands of U.S. soldiers have survived powerful explosions. Many are returning home with brain injuries that could result in lingering disabilities. By Anna Davison Topic: Researchers are testing a distributed network to detect early signs of damaging quakes. By John Borland Topic: Will a new low-price, high-def video camera make traditional still cameras obsolete? By Edward Boyden Topic: Empowering students to improve a billion lives. Friday, April 18, 2008 By Kevin Bullis Topic: Demand for corn-derived fuel is driving up food prices, but new technologies could help. By Kate Greene Topic: A new device gives researchers unprecedented control over an unwieldy part of the spectrum. By David Talbot Topic: Structural weakness forces Boeing to retrofit the 787 Dreamliner. Thursday, April 17, 2008 By Emily Singer Topic: Forget the $1, 000 genome. Some companies are looking far past that goal to create a really inexpensive sequencing technology. By Peter Fairley Topic: ...