Recently in the Spaceflight Category

In this paper I revisit proposed definitions of the boundary between the Earth's atmosphere and outer space, considering orbital and suborbital trajectories used by space vehicles.

The Science of Star Trek

Is Star Trek really a science show, or just a lot of "gee, whiz" nonsensical sci-fi?

Dream Chaser Completes Ground Tow Tests

Sierra Nevada Corporation (SNC) announces the completion of the Dream Chaser Space System tow testing at NASA's Dryden Flight Research Center in Edwards, Calif. The ground tow tests were conducted in preparation for the upcoming approach and landing test scheduled for the third quarter 2013.

NASA ISS On-Orbit Status 26 July 2013

New Status: Extravehicular Activity (EVA) Mobility Unit (EMU) Troubleshooting: Flight Engineer (FE)-3 Cassidy and FE-6 Nyberg performed a series of EMU troubleshooting steps on EMU 3011 to investigate the likely causes of the water issue experienced by FE-5 Parmitano during EVA 23.

An Ariane 5 launcher containing Europe's largest telecom satellite Alphasat and India's INSAT-3D was launched from Kourou, French Guiana yesterday afternoon.

New Status: 50 Progress (50P) Undocking: The Progress 50P vehicle (M-18M, No. 418) successfully undocked from the ISS Russian Segment Docking Compartment 1 (DC1) nadir docking port at 3:44 pm CDT, after the command to open the vehicle hooks was issued at 3:41 pm CDT.

New Status: Binary Colloidal Alloy Test (BCAT) Operations: Flight Engineer (FE)-5 Parmitano performed homogenization and took pictures of the ten Slow Growth Sample Module and mixed the contents of samples 1 - 10.

New Status: Marangoni-UVP2 Removal: Flight Engineer (FE)-3 Cassidy removed the processed Spatio-temporal Flow Structure in Marangoni Convection (Marangoni-UVP2) from the Fluid Physics Experiment Facility (FPEF) in advance of the installation of the next Marangoni experiment series.

NASA has appointed a board to investigate the July 16 early termination of a spacewalk outside the International Space Station, develop a set of lessons learned from the incident and suggest ways to prevent a similar problem in the future.

NASA astronauts Serena Aunon and Randy Bresnik conducted flight suit evaluations inside a fully outfitted test version of The Boeing Company's CST-100 spacecraft July 22, the first time the world got a glimpse of the crew capsule's interior.

New Status: Robonaut Tele-operations: Flight Engineer (FE)-6 Nyberg, in cooperation with the Robonaut Principal Investigator (PI), performed Robonaut Tele-operations today.

NASA Television will provide live coverage of the departure of one Russian cargo spacecraft from the International Space Station (ISS) on Thursday, July 25 and the launch and docking of another to the station Saturday, July 27.

European Space Agency astronaut Luca Parmitano, Expedition 36 flight engineer, attired in an Extravehicular Mobility Unit (EMU) spacesuit, participates in a session of extravehicular activity (EVA) as work continues on the International Space Station.