A heavily modified Boeing 777-200ER formerly operated by Japan Air Lines will soon become NASA's largest flying science laboratory. The retired commercial jet arrived at NASA's Langley Research Center ...

Update for 11 p.m. ET on Aug. 27: SpaceX has now delayed the Polaris Dawn launch until no earlier than Aug. 30 due to a helium leak and bad weather. Read our delay stories here and here. Call it one ...