Agriculture
Earth-Friendly Fabrics
Treating peanut allergy bit by bit
Watering the Air
Amphibians
Tree Frogs
Poison Dart Frogs
Bullfrogs
Animals
No Fair: Monkey Sees, Doesn't
A Wild Ferret Rise
Assembling the Tree of Life
Behavior
Primate Memory Showdown
Mice sense each other's fear
Ear pain, weight gain
Birds
Pelicans
Kiwis
Blue Jays
Chemistry and Materials
Unscrambling a Gem of a Mystery
Atomic Drive
Mother-of-Pearl on Ice
Computers
The solar system's biggest junkyard
New twists for phantom limbs
Supersonic Splash
Dinosaurs and Fossils
Dinosaurs Grow Up
A Rainforest Trapped in Amber
Mammals in the Shadow of Dinosaurs
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Earth
Life trapped under a glacier
A Global Warming Flap
Challenging the Forces of Nature
Environment
Missing Tigers in India
A Change in Leaf Color
Blooming Jellies
Finding the Past
A Human Migration Fueled by Dung?
Of Lice and Old Clothes
A Long Haul
Fish
Nurse Sharks
Pygmy Sharks
Goldfish
Food and Nutrition
A Pepper Part that Burns Fat
Chocolate Rules
Strong Bones for Life
GSAT English Rules
Adjectives and Adverbs
Who vs. Whom
Problems with Prepositions
GSAT Exam Preparation Jamaica
The Annual GSAT Scholarships
Preparing for the GSAT Exam
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Exams Jamaica Scholarships
GSAT Exam Preparation
Access denied - Disabled boy aces GSAT
Results of GSAT are in schools this week
GSAT Mathematics
42,000 students will sit for the GSAT Exam in two weeks
Math and our number sense: PassGSAT.com
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
Human Body
Heavy Sleep
Attacking Asthma
Opening a Channel for Tasting Salt
Invertebrates
Grasshoppers
Tapeworms
Dragonflies
Mammals
Bandicoot
Baboons
Bobcats
Parents
What Not to Say to Emerging Readers
Choosing a Preschool: What to Consider
Expert report highlights the importance to parents of reading to children!
Physics
Black Hole Journey
Dreams of Floating in Space
Hold on to your stars, ladies and gentlemen
Plants
Fast-flying fungal spores
Pumping Up Poison Ivy
Bright Blooms That Glow
Reptiles
Snakes
Turtles
Boa Constrictors
Space and Astronomy
Galaxies Divide Sharply Along Color Lines
A Darker, Warmer Red Planet
Pluto's New Moons
Technology and Engineering
A Micro-Dose of Your Own Medicine
Slip Sliming Away
Morphing a Wing to Save Fuel
The Parts of Speech
Pronouns
What is a Noun
Problems with Prepositions
Transportation
Robots on the Road, Again
Reach for the Sky
Charged cars that would charge
Weather
The Best Defense Is a Good Snow Fence
Science loses out when ice caps melt
Watering the Air
Add your Article

Either Martians or Mars has gas

Cows and Mars have at least one thing in common ó methane. Like flatulent (or farting) cows that produce the gas, the Red Planet releases clouds of methane, according to a recent study. Researchers wonder whether colonies of bacteria hidden beneath Marsí red surface could be the cause. The gas comes from three different areas of the planet, reports Mike Mumma, a NASA scientist at the Goddard Space Flight Center in Greenbelt, Md. At each location, the amount of methane fluctuated throughout the year. The biggest plumes were in the Martian summer and the smallest during the planetís winter. Other research teams have claimed to find Martian methane, but this was the first time that anyone could say so for sure. Detecting the methane clouds was no easy task. The scientists measured Marsí methane levels for three Martian years (equivalent to seven Earth years) using three special telescopes on Earth. These instruments can detect an invisible kind of light called infrared light. Scientists use these infrared telescopes to measure gases in space. But since the telescopes were on Earth, they also measured gases in our atmosphere. So the scientists had to use some tricks to figure out which gases came from Earth and which came from Mars. ďMumma and his team have been painstakingly careful,Ē says Christopher Chyba, an astrobiologist (someone who studies extraterrestrial life) at Princeton University. ďThe reward is that we have observations of methane that show variations over season and by location. Itís fantastic.Ē Methane is an unstable compound. Unless there is a constant source of the gas, the methane on Mars would eventually disappear. Spotting the methane over several years means that it is replenished regularly, Mumma said. The scientists donít know for sure what is causing methane to spew from Marsí rocky floor. But they have a couple ideas. It could be that the gas is trapped in ice-covered rocks. In the summer, the planet warms, and the ice melts. Then the gas could slip out of cracks in the rock. When winter rolls around again, the ice reforms and plugs up the leaks. That could explain why there is more methane in the summer than in the winter. In the other scenario, the methane is still trapped, but this time itís locked inside little molecular cages called clathrates. These are basically chunks of ice with lots of methane inside. The summer sun unlocks the cages and frees the methane. Neither of these hypotheses explains what creates the methane in the first place. That is still a bit of a mystery. About 90 percent of the methane in Earthís atmosphere comes from livestock and rotting plants, but bacteria also create the gas. Itís possible that Marsí methane could be coming from bacteria too. But itís too soon to say. There is not enough evidence yet to say one way or another, Chyba says. That will be the next challenge for Mumma and his team ó finding out if living organisms on Mars produce all that methane. But one thing is for sure: Itís not coming from cows.

Either Martians or Mars has gas
Either Martians or Mars has gas








Designed and Powered by HBJamaica.com™