Missing Stars
Why don't pictures of space show any stars? (Shutter speed not long enough.)
Big Dipper
How big is the Big Dipper? (size of 50 full moons or 276 trillion miles, depending)
Dark Sky
Why don't the stars light up the night sky? (Low intensity, light hasn't gotten here yet)
Faces in Space
Using a computer to watch an astronaut's facial expressions to diagnose any stress/health problems.
Bacteria Ballistics
Shooting bacteria out of agun to see if they could have survived an impact on Mars
Expanding Universe
What is the universe expanding into? (Nothing, except for a mysterious fourth dimension.)
Mars Roundup
Earth & Mars at closest distance in 55 million years; Multiple probes approaching Mars for even closer look
Protecting Satellites
Special satellites could change space weather by knocking out charged particles from the sun.
Deep Universe
How far away can scientists see into the universe? (about 13 billion light years away)
Morphing Planes
NASA's Morphing Project is working on planes that can adapt to changing flight conditions.
Gravity Detector
Detecting exploding stars and other stellar events by monitoring minute changes in gravity
Stardust Roundup
Stardust from the atmosphere, tracking earthquakes by looking at leaning trees, and better software for clearing up traffic jams
Our Moon
Why doesn't our moon have a name? (It does: Luna. But we use the Germanic name, Moon.)
Eco-Friendly Rocket Fuel
An environmentally nontoxic rocket fuel made from candle wax (paraffin).
Mars Dust Devils
Dust devils spotted and sensed by Pathfinder on Mars -- much like Earth counterparts
Gas Giant Origins
A new model for the formation of gas giant planets explains why so many have been discovered recently.
Sun Rings
A new piece by the Kronos Quartet incorporates sounds from outer space.
Solar Power from Moon
Putting solar cells on the moon could fulfill all of Earth's electricity needs.
Asteroid Mover
An asteroid's path could be altered to prevent it from hitting the Earth.
Power Cord in Space
Geocentric spacecraft may one day be propelled by a tether that dangles into the earth's magnetic field; Concept to be tested July 2002
Mars Hotel
A hotel in orbit around the sun could ferry astronauts between Earth and Mars.
Aerosols and Climate
Tracking aerosols with satellites helps scientists learn of their environmental effects