A NASA scientist explains the differences between these two heavenly objects.
Read about what makes an airplane fly.
Fifth-graders take home an award for their video on how a NASA technology helps protect skin against exposure to harmful ultraviolet rays.
On April 12, 2011, students were presented the NASA OPTIMUS PRIME trophy.
4.18.11 - Learn the message behind the mission patch in this interactive feature.› Read Non-Flash Version | › Download viewer
05.11.11 - Astronaut Alan Shepard was the first American in space.
See the winning videos created by students for the OPTIMUS PRIME contest.
04.13.11 - Clouds are masses of water or ice in the air and an important part of Earth's weather and climate.
In California, volunteers help install solar panels on the homes of people who cannot afford to buy them.
03.30.11 - Mercury is the smallest of the eight planets and is closest to the sun.
Check out the newest show from the PBS Design Squad. Judy and Adam team up with NASA to help 15-year-old Felipe design a human-powered glider.› "One Giant Leap" Part 1 → | › "One Giant Leap" Part 2 → | › Design Squad Website →
The planet closest to the sun is named for the ancient Roman god of trade and profit.
The Voyager spacecraft are hurtling toward interstellar space, more than 10 billion miles from the sun. Submit your students' questions about the Voyager missions to be answered in a live TV event on April 28, 2011.
03.16.11 - Gemini was a NASA spaceflight program that paved the way for the moon landings.
10.22.10 - Move Space Kid from platform to platform and intercept knowledge about the STS-133 space shuttle mission.
02.16.11 - A FIRST LEGO League team of fifth-graders proposes a device to keep drivers from texting or talking on cell phones while driving.
Find out what inspired these NASA scientists and engineers to study technical fields.
The first official image taken from the International Space Station's new Window Observational Research Facility features British Columbia.
01.19.11 - Planet Earth has an abundance of water that makes it unique and perfect for life to exist.
Expedition 26 Commander Scott Kelly shows off the International Space Station's Cupola.