In many parts of the world, the year is made up of four different seasons. These seasons are spring, summer, autumn and winter. Each has its own pattern of weather and varying hours of sunlight during the days.
Explore the Universe through Hubble's eye, and witness the most dangerous, spectacular and mysterious depths of the cosmos.
Space and NASA News
Get the latest outer space and science news, NASA information and watch space flight videos at Space.com.
NASA Street View
Street View - NASA’s Kennedy Space Center, USA
The 116 photos NASA picked to ...
The 116 photos NASA picked to explain our world to aliens.
Rotating Moon Video and Images
The video, a patchwork of images of the moon's various surfaces at their peak of solar illumination, ‘shows that there is no dark side of the moon — there's a far side,’ scientist Noah Petro says.
Explore the planets, black holes, stars and more.
How the Moon Evolved
According to a new study, scientists think Earth's moon formed about 95 million years after the first solids condensed in the solar system.
The Scale of the Universe
Zoom from quantum foam to the edge of the observable Universe.
Tour the Solar System
Warning: For those wanna-be astronauts and space travelers out there, this interactive model of the solar system could prove to be highly addictive. With one click, you can visit Saturn, Venus, or the other planets and then spin and explore them in three dimensions. The interface uses NASA calculations to precisely position all celestial bodies.
Explore the Universe.
Astronomy Through the Ages
Learn about the progression of astronomy from 2400 bc - 2011.
A Speck in the Universe
The Earth, our Solar System, the Sun, Arcturus, Antares, the Milky Way and the Universe. How does the size of Earth stack up.
Interactive - How big is Space?
Pilot a rocket through the Solar System.
Meteor Impact Craters Around the ...
Hey there meteorite fans! We all want to get our hands on some of the most beautiful (and if possible, rare!) meteorites out there. But have we ever taken the time to step back from our astronomical pursuits, and think – where did it all come from? That bit of the universe that we hold in our hand now – where did it originate? What is it composed of? And where did it impact on the Earth?
Sharpest Views of the Cosmos Ever
StarStruck invites you to discover the cosmos and go behind the scenes of space exploration. Also learn what's coming up in your night sky.
Exploring the Universe.
12 Diagrams That Changed How We ...
These days, we are treated to glorious images of the cosmos through astrophotography and sophisticated three-dimensional visualizations of the universe. In the early centuries of astronomy, however, our visions of the cosmos often took the shape of diagrams—representing what we believed about our solar system.
Star Stuff ABC Science
Hosted by Stuart Gary, StarStuff takes us on a weekly journey across the universe. StarStuff reports on the latest news and discoveries in science, with a special focus on astronomy, space sciences and cosmology.
iPad App NASA
Come explore with NASA and discover the latest images, videos, mission information, news, feature stories, tweets, NASA TV and featured content with the NASA App for iOS.
iPad App Rocket Science 101
You don't have to be a rocket scientist to launch a NASA spacecraft with NASA's Rocket Science 101 (RS101)! Select your favorite NASA mission and build a rocket to send the spacecraft into orbit. As you take the RS101 challenge, you can learn more about thrilling missions and the various components of the launch vehicles, how they are configured and how they work together to successfully launch a NASA spacecraft.
iPad App Exoplanet
The Exoplanet app is a highly visual and interactive catalogue of all known exoplanets. Exoplanets are planets orbiting stars beyond our own Solar System. It is frequently updated whenever new discoveries are confirmed. An amazing model of the Milky Way lets you explore our universe all the way from the Solar System to the cosmic microwave background.
iPad App 3D Sun
"3D Sun" lets you carry a virtual window onto today's sun, right in your pocket. Open this app anytime to see what's happening today on the sun's ever-changing surface. See when major solar flares erupt on the sun's surface. Track sunspots that reveal the churning activity inside the sun's fiery inferno.
iPad App NASA Visualization Explorer
A direct connection to NASA’s extraordinary fleet of research spacecraft, this app presents cutting edge research stories in an engaging and exciting format. See the Earth as you’ve never seen it before; travel to places otherwise unavailable to even the most intrepid explorers! Download it now, tap into the power of NASA’s cutting-edge research today and check for new stories every week!
iPad App Hubble Top 100
Feel the Universe at your fingertips and access a universe of knowledge with the ESA/Hubble Top 100 Images, which brings users the best Hubble pictures from ESA, as NASA’s partner in this international project.
iPad App Space Images
Discover stunning images and videos of space, stars and planets -- including Earth and the sun! -- at your fingertips with the Space Images app from NASA's Jet Propulsion Laboratory, a leader in robotic exploration of the solar system.
iPad App Moon
Moon is a perfect resource to help you learn about the moon. Moon constantly updates a panel of information that tells you everything you want to know about the moon.