Agriculture
Keeping Bugs Away from Food
Getting the dirt on carbon
Silkís superpowers
Amphibians
Poison Dart Frogs
Tree Frogs
Bullfrogs
Animals
Missing Moose
Eyes on the Depths
Bee Heat Cooks Invaders
Behavior
Flower family knows its roots
Math is a real brain bender
Listen and Learn
Birds
Chicken
Cassowaries
Kookaburras
Chemistry and Materials
Big Machine Reveals Small Worlds
Small but WISE
When frog gender flips
Computers
Toxic Dirt + Avian Flu = Science Fair Success
Look into My Eyes
Supersonic Splash
Dinosaurs and Fossils
A Dino King's Ancestor
The Paleontologist and the Three Dinosaurs
A Living Fossil
E Learning Jamaica
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Earth
A Volcano's Deadly Ash
Surf Watch
Island of Hope
Environment
Hazy with a Chance of Sunshine
What is groundwater
Fishing for Fun Takes Toll
Finding the Past
Oldest Writing in the New World
Ancient Cave Behavior
Unearthing Ancient Astronomy
Fish
A Jellyfish's Blurry View
Puffer Fish
Barracudas
Food and Nutrition
Chew for Health
Chocolate Rules
Healing Honey
GSAT English Rules
Who vs. Whom
Pronouns
Problems with Prepositions
GSAT Exam Preparation Jamaica
Tarrant High overcoming the odds
GSAT stars reap scholarship glory
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
GSAT Exams Jamaica Scholarships
GSAT Scholarship
Access denied - Disabled boy aces GSAT
GSAT stars reap scholarship glory
GSAT Mathematics
42,000 students will sit for the GSAT Exam in two weeks
Play for Science
A Sweet Advance in Candy Packing
Human Body
Fighting Off Micro-Invader Epidemics
Cell Phones and Possible Health Hazards
Kids now getting 'adult' disease
Invertebrates
Mollusks
Leeches
Corals
Mammals
Labradors
Asiatic Bears
Cats
Parents
Choosing a Preschool: What to Consider
What Not to Say to Emerging Readers
Expert report highlights the importance to parents of reading to children!
Physics
One ring around them all
Thinner Air, Less Splatter
The Mirror Universe of Antimatter
Plants
City Trees Beat Country Trees
A Change in Leaf Color
Making the most of a meal
Reptiles
Snapping Turtles
Reptiles
Asp
Space and Astronomy
World of Three Suns
Intruder Alert: Sweeping Space for Dust
Planet Hunters Nab Three More
Technology and Engineering
Searching for Alien Life
Switchable Lenses Improve Vision
Algae Motors
The Parts of Speech
What is a Noun
What is a Preposition?
Pronouns
Transportation
Ready, unplug, drive
Reach for the Sky
Charged cars that would charge
Weather
A Dire Shortage of Water
Antarctica warms, which threatens penguins
Either Martians or Mars has gas
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™