interactive Astronomy Software for everyone

The Source for Space History and Artifacts

HubbleTelescope- Images from the Hubble Space Telescope

The planisphere overlays the night sky in Google Earth with a grid showing you what you can see right now, including the positions of the Sun, Moon and planets (and Pluto too).

Human settlement of Mars in 2023 Mars One will establish the first human settlement on Mars in 2023. A habitable settlement will be waiting for the settlers when they land. The settlement will support them while they live and work on Mars the rest of their lives. Every two years after 2023 an additional crew will arrive, such that there is a real living, growing community on Mars. Mars One has created a technical plan for this mission that is as simple as possible. For every component of the mission we have identified at least one potential supplier. Mars One invites you to join us in this next giant leap for mankind!

The Starry Messenger is Phase I of the Electronic History of Astronomy developed in the Whipple Museum of the History of Science and the Department of History and Philosophy of Science. This phase was directed by Dr Sachiko Kusukawa and Dr Liba Taub, and supported by funding from Trinity College, Cambridge. Dr David Chart was the Project Manager.

SpaceEngine - is a free space simulation software that lets you explore the universe in three dimensions, starting from planet Earth to the most distant galaxies. Areas of the known universe are represented using actual astronomical data, while regions uncharted by human astronomy are generated procedurally. Millions of galaxies, trillions of stars, countless planets!

Creating a better future by exploring other worlds and understanding our own.

The Blue Marble is a famous photograph of the Earth, taken on December 7, 1972, by the crew of the Apollo 17 spacecraft, at a distance of about 45,000 kilometres (28,000 mi).[1]

Planetary Resources is establishing a new paradigm for resource discovery and utilization that will bring the solar system into humanity's sphere of influence. Our technical principals boast extensive experience in all phases of robotic space missions, from designing and building, to testing and operating.

"Eyes on the Solar System" is a 3-D environment full of real NASA mission data. Explore the cosmos from your computer. Hop on an asteroid. Fly with NASA's Voyager 2 spacecraft. See the entire solar system moving in real time. It's up to you. You control space and time.

Clear Sky Charts are perhaps the most accurate and the most usable forecasters of astronomical observing conditions for over 1900 observatories and observing sites in North America.

Located at New Mexico Skies and CTIO, Star Shadows Remote Observatory (SSRO) is a cooperative astro-imaging venture operated by Lewis Garrett, Jacob Gerritsen, Rick Gilbert,  Jack Harvey, Steve Mazlin, Michael Smith, Teri Smoot, and Daniel Verschatse.

SETILive is taking the Search for Extraterrestrial Intelligence (SETI) directly to you by presenting radio frequency signals LIVE from the SETI Institute's Allen Telescope Array (ATA) while it's pointed at stars that, based on Kepler exoplanet discoveries, have the best chances of being home to an alien civilization. We'll also be putting you "in the loop" where if enough of you see a potential extraterrestrial (ET) signal in the same data, then within minutes, the ATA will be interrupted and sent back to take a second look. The data you see will be from frequencies where human-made Radio Frequency Interference (RFI) crowds them and we believe the human eye will have a better chance than SETI's computer algorithms to find ET signals there.