Latest articles by Bill Christensen
Sushi in Space: What Astronauts Are Eating These Days
Sushi is now on the menu for the International Space Station, thanks to a Japanese astronaut.
Gravitational Corridors Act Like Space Lanes
The energy inherent in gravitational corridors would make ideal space lanes for interstellar travel.
Stuck Mars Rover Takes Up Stargazing
The Mars Spirit robot may be stuck in sand, but is still sending back amazing images.
Inflatable Space Tower Proposed
An inflatable space tower tall enough launch spacecraft has been proposed by Brendan Quine, Raj Seth and George Zhu at York University in Toronto, Canada, according to a New Scientist report.
Cell Phone Ultrasound Device Like Trek 'Tricorder'
Handheld ultrasound probe is used in conjunction with a Windows-based mobile phone.
Ballutes Studied For Hypersonic Space Vehicles
Global Aerospace has been given NASA funding to study the use of ballutes in planetary atmospheric entry and descent.
Space Debris Cleanup Suggestions Ignored
Science fiction writers weigh in on how to solve space debris problems.
NASA's Multi-Robot Planetary Exploration Plans
Multi-robot planetary exploration would be a complex affair, with humans working with a diverse team of mobile robots operating in a variety of control modes.
Meet Axel: NASA's 'Marsupial' Rover to Explore Craters
NASA's Axel rover is a whirling robot to tackle the most challenging terrain on the Moon and beyond.
Meet Jaluro, a Two-Wheeled Open-Source Lunar Rover
Jaluro is a two-wheeled moon rover entry in the $30 million Google Lunar X Prize contest.
Diamagnetic Cavity Shields For Spacecraft?
Radiation force shields may leap from science fiction to fact via magnetic fields.
Navigating By X-Ray Pulsar
Navigating by x-rays from pulsars could be the GPS of the solar system.
Physics and Fitness Meld for Space Tourist, NFL Player
Space tourist and former NFL player create sports for space.
NASA to Deploy Solar Sail This Summer
Scientists hope to deploy a solar sail called NanoSail-D this summer.
Space Fleets Stay In Formation Magnetically
Spacecraft flying in formation could use magnets to align themselves.
Universal Translator May Be Possible
Could all languages have a universal structure?
DARPA Works to Perfect Self-Forging, High-Velocity 'Spears'
MAHEM is a new DARPA project, but familiar to science fiction fans.
'Aliens' Attacking Bosnian Man with Meteorites
Five meteorites have fallen on Radivoje Lajic's house in six months.
Robotic Lunar Base With Legs Changes Everything
This ATHLETE could play an essential role in new lunar bases.
