Explore the Universe in real time through some of the world’s best astronomical resources.
Astronomy is no longer something we only read about in books. Today, anyone can explore the sky, follow spacecraft, observe the Sun, study the Moon and travel through the Solar System from home.
These free tools open a window to the Universe. Choose a resource below and start exploring.
Explore the Night Sky
Identify stars, constellations, planets and deep-sky objects visible from your location. One of the best ways to learn the night sky is simply to explore it.
NASA Eyes
Travel through the Solar System in real time using NASA’s interactive 3D visualization. Explore planets, moons, asteroids and spacecraft from every angle.
Earth from Space
View our remarkable planet from space and discover its beauty through stunning satellite imagery. Explore Earth’s continents, oceans, weather systems and changing environment from a unique perspective.
ISS Live Tracker
Follow the International Space Station as it orbits Earth in real time. See its current location, discover when it will pass overhead, and learn more about humanity’s permanent home in space.
Solar Activity
Explore the Sun through live images and discover sunspots, solar flares, prominences and current space weather as they happen.
The Moon
Explore detailed maps of the Moon, discover craters, mountains and historic landing sites, and experience our nearest celestial neighbour in remarkable detail.
Deep Sky Explorer
Journey beyond our Solar System and explore galaxies, nebulae and star clusters through breathtaking images captured by the world’s most powerful telescopes.
Explore the Future
Discover current and future space missions, next-generation observatories and the technologies that will shape humanity’s exploration of the Universe.