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How China's Pollution Sniffers Work
science.howstuffworks.com/environmental/green-science/pollution-sniffer.htm
Air pollution in China has spurred the training of air pollution sniffers to detect toxic gas. Read more about air pollution detection through smell.
How Voyager Works
science.howstuffworks.com/voyager.htm
The Voyager program launched two unmanned probes into space. The Voyager spacecrafts captured amazing images and made incredible scientific discoveries.
Something Produced a Surprising Spike of Methane on Mars
science.howstuffworks.com/methane-spike-mars.htm
Of all the discoveries made on Mars, the detection of methane blowing in the air is probably the most compelling. HowStuffWorks investigates the Mars methane mystery.
How Long Does It Take to Get to Mars?
science.howstuffworks.com/long-does-it-take-to-get-to-mars.htm
Missions to Mars are increasing and the dream of landing a human on the red planet is no longer far-fetched - it might even happen in the next decade. So, how long does it take to get there?
Why Is an Asteroid Worth $10,000,000,000,000,000,000?
science.howstuffworks.com/psyche-16-asteroid.htm
A distant asteroid made mostly of iron is potentially worth $10,000 quadrillion, making it many times more valuable than the global economy.
How a Weather Balloon Works?
science.howstuffworks.com/nature/climate-weather/meteorological-instruments/weather-balloon.htm
Have you ever wondered how weather stations gather all of their data? Even though technology for predicting the weather has improved, simple weather balloons do a lot of the hard work every day.
Space Lettuce Is Out of This World Good
science.howstuffworks.com/space-lettuce.htm
Lettuce has key nutrients that give both astronauts and Earth-dwellers alike a physical and psychological boost. And the lettuce grown in space is no less nutritious than the Earth-bound variety.
Zeno Acne Treatment Device
health.howstuffworks.com/skin-care/problems/treating/zeno-acne-treatment-device.htm
The Zeno acne treatment device is designed to fight acne with heat. Find out how the Zeno acne treatment device works at HowStuffWorks.
Exploring Jovian Planets, the Titans of Our Solar System
science.howstuffworks.com/jovian-planets.htm
The four Jovian planets are officially designated as gas (and/or ice) giants. Which planets are they and what makes them so unique?
Can We Get Into Space Without Big Rockets?
science.howstuffworks.com/can-get-into-space-without-big-rocket.htm
Visionaries have proposed various ways to get into space without using large rockets for propulsion, such as building a space elevator or harnessing magnetic levitation.