Will you be the first to find real star dust this week on planetary radio. Hi everyone, welcome to Public Radio's travel show that takes you to the final frontier.

I'm Matt Kaplan. He's back and he needs your help.

Andrew Westfall of the Stardust At Home Project wants you and your sharp eyes

to help find microscopic dust particles that have come from beyond our solar system.

He'll tell us more in just a few minutes.

Bruce Betts is pretty excited that Star Dust at home is open for business.

He's also anxious to tell us about the night sky and the surprising

answer to our latest trivia contest. And he'll provide yet another chance to win a planetary

radio t-shirt in this week's what's up. Feeling cramped, don't think there's

enough room for all your galaxies, quasars, and cosmic dust bunnies, then show your

gratitude to a team of astronomers at Ohio State University.

In an article about to appear in the astrophysical journal, they say we've been using the wrong

number for the Hubble constant. If they're right, the universe is about 15%

larger than most scientists thought, and a couple of billion years older too. Other researchers

are impressed, but aren't quite ready to revise their

maps to the Stars homes just yet. Space Shuttle Atlantis made it to pad 39A last

week. The four-mile trip from the vehicle assembly building took almost eight hours.

That's about a half mile or less than a kilometer an hour. Six astronauts will travel considerably

faster as they bring an 18 ton solar power array to the

international space station.

The launch window opens on August 27.

Speaking of solar power, things are looking up for spirit and opportunity as the sun

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