Climate change has caused a rise in sea levels. This has increased the amount of salt in fresh water used…
South Korea is dealing with increasing amounts of waste from electronic devices. These useless or unwanted parts are often called…
Kenya is East Africa's largest economy. Its capital Nairobi is growing quickly. But so is the city's crime rate --…
Five years ago, the Mars Rover Spirit got stuck in sand on the red planet. Spirit is one of the…
The gas methane has been linked to rising temperatures on Earth. But methane does not stay in the atmosphere as long as another "greenhouse…
Testing new drugs for safety and effectiveness is a costly process in the United States. It also can take a…
We know more about the surface of the planet Mars than we know about what is at the bottom of Earth's oceans.…
Powerful winds from the sun affect the earth's atmosphere. These solar winds cause the beautiful aurora borealis, also known as the northern…
Three-dimensional printers are fast becoming everyday devices in the United States. Three-D printers are used to make everything from automobile…
An American spacecraft reached Mars late Sunday after a 10-month-long journey. It traveled a total of 711-million kilometers from Earth to…