Agriculture
Keeping Bugs Away from Food
Microbes at the Gas Pump
Protecting Cows—and People—from a Deadly Disease
Amphibians
Tree Frogs
Toads
Salamanders
Animals
Walktopus
Feeding School for Meerkats
Monkeys Count
Behavior
Internet Generation
Flower family knows its roots
Between a rock and a wet place
Birds
Pigeons
Ibises
Roadrunners
Chemistry and Materials
Lighting goes digital
The newest superheavy in town
Big Machine Reveals Small Worlds
Computers
Galaxies far, far, far away
The Shape of the Internet
New twists for phantom limbs
Dinosaurs and Fossils
Dino-bite!
The Paleontologist and the Three Dinosaurs
Dino Babies
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Earth
Distant Quake Changes Geyser Eruptions
Hints of Life in Ancient Lava
Coral Islands Survive a Tsunami
Environment
Easy Ways to Conserve Water
Inspired by Nature
Alien Invasions
Finding the Past
A Long Haul
Unearthing Ancient Astronomy
Early Maya Writing
Fish
Salmon
Mako Sharks
Dogfish
Food and Nutrition
Packing Fat
Building a Food Pyramid
Eat Out, Eat Smart
GSAT English Rules
Who vs. That vs. Which
Adjectives and Adverbs
Pronouns
GSAT Exam Preparation Jamaica
GSAT Exam Preparation
How are students placed after passing the GSAT exam
Results of GSAT are in schools this week
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
Results of GSAT are in schools this week
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Mathematics
Math of the World
10 Common Mistakes When Preparing for the GSAT Math Test
A Sweet Advance in Candy Packing
Human Body
Kids now getting 'adult' disease
Germ Zapper
Fighting Off Micro-Invader Epidemics
Invertebrates
Squid
Crustaceans
Clams
Mammals
Giraffes
Pugs
Cougars
Parents
Expert report highlights the importance to parents of reading to children!
How children learn
Raise a Lifelong Reader by Reading Aloud
Physics
Spin, Splat, and Scramble
Dreams of Floating in Space
Road Bumps
Plants
Surprise Visitor
Hungry bug seeks hot meal
Tracking the Sun Improves Plant Pollen
Reptiles
Asp
Turtles
Reptiles
Space and Astronomy
Mercury's magnetic twisters
Intruder Alert: Sweeping Space for Dust
Baby Star
Technology and Engineering
Crime Lab
Machine Copy
Space Umbrellas to Shield Earth
The Parts of Speech
What is a Noun
Pronouns
Adjectives and Adverbs
Transportation
Tinkering With the Basic Bike
Are Propellers Fin-ished?
Where rivers run uphill
Weather
A Dire Shortage of Water
Antarctica warms, which threatens penguins
Polar Ice Feels the Heat
Add your Article

Either Martians or Mars has gas

Cows and Mars have at least one thing in common — 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 Mars’ 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 planet’s 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 Mars’ 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. “Mumma and his team have been painstakingly careful,” says Christopher Chyba, an astrobiologist (someone who studies extraterrestrial life) at Princeton University. “The reward is that we have observations of methane that show variations over season and by location. It’s fantastic.” 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 don’t know for sure what is causing methane to spew from Mars’ 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 it’s 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 Earth’s atmosphere comes from livestock and rotting plants, but bacteria also create the gas. It’s possible that Mars’ methane could be coming from bacteria too. But it’s 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 — finding out if living organisms on Mars produce all that methane. But one thing is for sure: It’s not coming from cows.

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








Designed and Powered by HBJamaica.com™