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Get ready for a wet weekend. There's a 70 percent chance that a low in the Gulf could become Tropical Storm Debby soon -- perhaps as early as today. The storm is now expected to his the Tampa Bay region before crossing Florida.

It's tomato time here in the mid-Atlantic – the critical moment when those of us eager to pull fat, bright fruit off our own backyard vines in a couple months are scurrying to get tender little plants in the ground.

But as anyone who's spent a few summers of kneeling in the dirt can tell you, healthy-looking vines will not necessarily get you a mind-blowingly delicious tomato. And why?

Courtesy of NASA.gov

The transit of Venus, when the planet can be seen as a black dot moving across the sun, is happening today starting at 6 PM.

The transit of Venus happens every 100 years or so and tonight's viewing is the last one of the century. The next viewing won't be until December 2117.

The transits usually occur in pairs and in a time span of about 8 years. The first one happened in 2004.

Private Rocket Launch Successful, Heads to Space Station

May 22, 2012
John Raoux / AP

A commercial rocket blasted off at 3:44 a.m. Tuesday with a load of supplies for the International Space Station. The SpaceX company's Falcon 9 rocket took flight from Cape Canaveral carrying a capsule named Dragon that is packed with 1,000 pounds of space station provisions.

Nell Greenfieldboyce covered the launch for National Public Radio:

Doug Finger / Gainesville Sun

A pair of University of South Florida researchers has won the third annual Cade Museum Prize for Innovation for a device they've developed that uses sound waves from inside a patient's body to diagnose health problems.

Phil Hipol, the engineering director at USF Health's Center for Advanced Medical Learning and Simulation (CAMLS), and Dr. Stuart Hart, professor in USF Health's Department of Obstetrics and Gynecology, won the prize for their electronic catheter stethoscope, or "eCath."

Carol and Barney Barnett - members of the family that founded the Publix Supermarket chain - have donated $1 million for series of new classrooms at the Florida Aquarium.

It will be called the Carol and Barney Barnett Learning Center—part of the Aquarium’s "Rising Tides Campaign," which aims to raise $15 million in donations.

Roberto Gonzalez/Getty Images

NASA's oldest space shuttle, Discovery, made its final flight today aboard a modified 747 jumbo jet.  It left Kennedy Space Center at Cape Canaveral just after sunrise Tuesday morning bound for Dulles International Airport in Virginia.

It will go on display at Smithsonian Air & Space Museum hanger at the airport.

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