nasa
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March 21, 2012 In Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida, space shuttle Endeavour’s left orbital maneuvering system OMS pod ...
Science@NASA
HSF - International Space Station
ISS Science Looks to Mars Can humans live on Mars? Is it safe? The Vision for Space Exploration opens the door for NASA to find out.
Sea and Sky's Astronomy Resources: Celestial Events Calenda
January 3, 4 - Quadrantids Meteor Shower. The Quadrantids are an above average shower, with up to 40 meteors per hour at their peak. The shower usually peaks on January 3 & 4, but some meteors can be visible from January 1 - 5.
During the course of a year the Earth completes one orbit around the Sun. To us on Earth we see this as the Sun moving against the background of stars through the year, along an imaginary line which we call the ecliptic . This defines the plane in which the Earth and most of the other planets orbit around the Sun. The directions to the north and south ecliptic poles are at right angles to this.
Equinoxes and solstices : Time & timekeeping : Fact files :
sea & sky
"Our loyalties are to the species and the planet. We speak for Earth. Our obligation to survive is owed not just to ourselves but also to that Cosmos, ancient and vast, from which we spring."
