Astronomers have spotted what they believe to be the most distant object ever seen in our solar system.

The dwarf planet, known for now simply as V774104, is more than 100 times farther from the sun than we are. Astronomers aren't sure what it's doing out there, but they're hoping follow-up studies of its orbit will teach them more.

Our Tools of the Trade series examines iconic objects of the education world.

The 24 juniors and seniors in the astronomy class at Thomas Jefferson High School in Alexandria, Va., sink into plush red theater seats. They're in a big half-circle around what looks like a giant telescope with a globe on the end. Their teacher, Lee Ann Hennig, stands at a wooden control panel which, appropriately, has enough buttons and dials to launch a rocket.

Monday's extraordinary news that running water exists on Mars is enough to get any wanna-be space explorer's blood pumping.

Oh, to be sailing the high frontier, braving the unknown with nothing but your trusty "bot" by your side. Going where no one has gone before etc., etc.

A University of Washington professor has taken a very unusual picture: It’s the most detailed photograph ever produced of a large spiral galaxy outside of our own. The massive panorama of the Andromeda Galaxy combines about 3,000 images snapped over three years by NASA’s Hubble Space Telescope.

Zack Gainsforth

An unmanned NASA research mission led by a Seattle scientist has caught what are believed to be seven tiny pieces of distant stars and brought them back to Earth.

The Stardust Mission sent a spacecraft on three trips around the sun, dipping into an extremely faint jet of interstellar particles flowing into the solar system. It grabbed seven motes of interstellar dust, giving us a glimpse of what stars other than the Sun are like.

ADMX Collaboration

Think of the immense amount of stuff in the cosmos: stars, planets, interstellar dust and clusters of galaxies. Now consider this: all that stuff is probably only about one-sixth of the matter in the universe.

The rest is thought to be a mysterious invisible substance called dark matter — something scientists have been hunting for decades. Now an unexpected turn of events has put a low-key research team in Seattle right at the center of the dark matter search.


A University of Washington researcher may have helped solve a Martian mystery by explaining how the chilly surface of Mars could have once flowed with water.

Pictures of Mars clearly show features that look like valleys and old lakebeds, suggesting liquid water once churned on the planet's surface. And yet that surface is really cold, at -80 degrees Fahrenheit, on average.

Troy Cryder / NASA

The Space Shuttle Endeavor is headed to the International Space Station after a successful launch. On board is an experiment conducted by students in Seattle

A team from Ballard High School is cultivating E. Coli in space to see how it compares to bacteria on Earth.

Ted S. Warren / AP

Nick Risinger has always gazed up at the sky. But last year the amateur astronomer and photographer quit his day job as a Seattle marketing director and lugged six synchronized cameras about 60,000 miles to capture an image of the entire night sky.


Western Washington can look forward to an added gift of the Winter Solstice: a total eclipse of the moon. The heavenly event begins at 10:32 pm tonight, with the moon in full eclipse from 11:41 pm to 12:53 am, according to NASA.