Sixty Years of Observing Our Earth
Satellites are a part of our everyday life. We use global positioning system (GPS) satellites to help us find directions. Satellite television and telephones bring us entertainment, and they connect people all over the world. Weather satellites help us create forecasts, and if there’s a disaster — such as […]
There are many places on Earth where it snows, but did you know it snows on other worlds, too? Here are just a few of the places where you might find snow beyond Earth:
The north pole and south pole of Mars have ice caps that grow and shrink with the seasons. These […]
The United States had a rough hurricane season this year. Scientists collect information before and during hurricanes to understand the storms and help people stay safe. However, collecting information during a violent storm is
Hurricanes are constantly changing. This means that we need a lot of really precise data about the storm. […]
Have you ever seen a cloud that looks sort of like a rabbit? Or maybe a rock formation that looks a bit like an elephant? Although you know that a cloud isn’t really a giant rabbit in the sky, it’s still fun to look for patterns in images from nature. Can you spot some familiar […]
Cassini Says Goodbye
On Sept. 15, the Cassini spacecraft began its final mission. It started its dive into the planet Saturn, where it will gather information and send it back to Earth for as long as possible. During the dive, it will eventually burn up in the atmosphere, much like a […]
On Aug. 21, the sky darkened, the temperature dropped and all 50 United States were able to see the moon pass — at least partially — in front of the sun. It’s a solar eclipse!
A solar eclipse happens when the moon passes between the sun and Earth, casting its shadow on Earth. Sometimes […]
On July 4, 1997, NASA’s Mars Pathfinder landed on the surface of Mars. It landed in an ancient flood plain that is now dry and covered with rocks. Pathfinder’s mission was to study the Martian climate, atmosphere and geology. At the same time, the mission also tested lots of new technologies.
For example, the Pathfinder […]
WHAT CAN WE LEARN FROM LIGHT? By Teagan Wall
When you look up at the night sky and see stars, what you’re seeing is light produced by those stars many years ago. Because this is how we study the stars, it helps to know a few cool things about light. For example, light always travels […]
GETTING A BOOST FROM GRAVITY By Linda Hermans-Killiam
It takes a lot of fuel to escape Earth’s gravity. The more a spacecraft weighs, the more fuel rockets need to launch them. Spacecraft also have to carry fuel to help them travel through space. Every bit of fuel adds weight and cost to space missions. Fortunately, […]
Did you know that when you check the weather on your phone or watch your local weather forecaster on TV, you’re actually looking at information from a faraway satellite?
In 2017, a new satellite will be launched that will give us a better understanding of Earth’s climate and environment. It is part of a mission […]