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"Last September, two satellites - the smallest ever discovered - were found orbiting Jupiter. That brings the number of Jovian moons to a whopping 66. The moons - each about 1 km in size - are very distant from Jupiter. It takes the tiny satellites 580 and 726 days to orbit the gas giant."

"The deepest depths of space, out beyond our atmosphere, our Solar System, and even our galaxy, hold the richness of the great Universe beyond. Stretching for billions of light years in every direction, there are structures large and small, dense and sparse, everywhere we've ever dared to look. "

"re-purposing two NRO telescopes appears to be a wonderful Band-Aid for a tricky space telescope problem. Also, as hardware construction consumes a lot of funds and time ahead of any space telescope mission, these two telescopes would save NASA a lot of cash."

""From January 2009 to January 2012, there had been a gradual increase of about 25 percent in the amount of galactic cosmic rays Voyager was encountering," said Stone. "More recently, we have seen very rapid escalation in that part of the energy spectrum. Beginning on May 7, the cosmic ray hits have increased five percent in a week and nine percent in a month.""

"How do we actually use these numbers to measure the universe? That's precisely what the Royal Observatory Greenwich answers in this wonderful short animation, a teaser for a new exhibition titled Measuring the Universe: from the transit of Venus to the edge of the cosmos"

"If you caught last night's transit of Venus, you might have seen the sun as a smooth bright ball with a hole punched in it. NASA's orbiting Solar Dynamics Observatory (SDO) had a much more dramatic view. "

remarkable animation - be sure to scroll all the way to the left and right to see the entire representation

"The app features a variety of views of our ringed planet and 20 of its satellites. Each image has an explanation sourced from NASA/JPL. You can swipe from image to image, or use a drop-down menu to explore the images. "

source of free science projects and experiments for parents, teachers, and children of all ages.

The Milky Way Project aims to sort and measure our galaxy, the Milky Way. Initially we're asking you to help us find and draw bubbles in beautiful infrared data from the Spitzer Space Telescope. Understanding the cold, dusty material that we see in these images, helps scientists to learn how stars form and how our galaxy changes and evolves with time.

Moon Zoo - with your help, we hope to study the lunar surface in unprecedented detail. Thanks to the help of the Moon Zoo community we have already visually classified 1,599,082 images from NASA's Lunar Reconnaissance Orbiter (LRO).

Speakers over the years have included Nobel-prize winners, members of the National Academy of Sciences, the first woman in history to discover a planet, an astrophysicist who is an award-winning science fiction writer, and many other well-known scientists explaining astronomical developments in everyday language.

"The Known Universe takes viewers from the Himalayas through our atmosphere and the inky black of space to the afterglow of the Big Bang. Every star, planet, and quasar seen in the film is possible because of the world's most complete four-dimensional map of the universe, the Digital Universe Atlas that is maintained and updated by astrophysicists at the American Museum of Natural History. The new film, created by the Museum, is part of an exhibition, Visions of the Cosmos: From the Milky Ocean to an Evolving Universe, at the Rubin Museum of Art in Manhattan through May 2010. Data: Digital Universe, American Museum of Natural History http://www.haydenplanetarium.org/universe/"

"the night sky and the Ocean. Taking series of images and combining them into a time lapse video sequence made it even more interesting. I have since experimented with all-night time lapses, panning motion, etc."