Loki Lego Launcher 2.0 soars high above central Washington on July 30. (Courtesy of Rebecca and Kimberly Yeung) Update: A new YouTube video, below, captures the preparation and launch of Loki Lego ...

Most famous spacecraft are born inside sprawling, high-tech facilities, but the Loki Lego Launcher that brought 10-year-old Kimberly and 12-year old Rebecca Yeung to fame was made right in their ...

Two Seattle sisters send a spacecraft — featuring a picture of their beloved feline — 78,000 feet into the sky Kimberly and Rebecca Yeung’s cat has gone where few cats have gone before, thanks to a ...

Three Lego minifigures sit on the workbench inside the Yeung sisters’ garage-turned-workshop. The flight computer aboard the Loki Lego Launcher. Kimberly Yeung studies their mission binder to decide ...

Kim Malcolm speaks with Seattle sisters Rebecca, 11, and Kimberly Yeung, 9, about bringing their "spacecraft," the Loki Lego Launcher, to the White House Science Fair. Before the White House, the Loki ...

The Seattle sisters behind a series of missions to launch Lego toys into the stratosphere on high-altitude balloons are at it again. This time, they’re teaming up with the pros at NASA for a flight ...

Two new additions to my list of inspirational ladies: Rebecca and Kimberly Yeung, ages 11 and 9, respectively. The sisters jumpstarted their scientific career when they designed and built the Loki ...

"We'll remember this day for the rest of our lives," Rebecca and Kimberly Yeung wrote in a blog Thursday. The day was Wednesday and the two girls from Seattle displayed their scientific project along ...

Little girls launch homemade craft to the edge of space Video by Winston Yeung. Seattle sisters 10-year-old Rebecca Yeung and 8-year-old Kimberly Yeung build a homemade craft and launch R2-D2 and a ...