Oak Ridge Today

UT, ORNL, NASA, TVA help robotic ‘football’ kick off this week

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FIRST Robotics' Aerial Assist

This image shows what a game of FIRST Robotics’ Aerial Assist, a football-like game played by robots, might look like. (Photo courtesy University of Tennessee)

KNOXVILLE—Football season is still months away, but those needing a quick fix before fall can get a chance to see a version of the game played by competitors functioning like well-oiled machines.

The FIRST Robotics Competition Smoky Mountain Regional returns to the Knoxville Convention Center March 26-29, and is centered around a game featuring strong elements from football and soccer called Aerial Assist.

The idea behind Aerial Assist is that the 50 teams at the competition—from as far away as St. Louis and as close as the L&N STEM Academy across World’s Fair Park—will each build a robot capable of throwing, kicking, or running with a round ball with the goal of scoring a goal at each end of a field, or one capable of playing defense.

The University of Tennessee’s College of Engineering in Knoxville helps sponsor the event along with various technology and industry organizations such as NASA, Oak Ridge National Laboratory, and the Tennessee Valley Authority. [Read more…]

UT professor helps discover near-Earth asteroid really a comet

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Don Quixote Orbit

This image displays Don Quixote’s orbit. (Image courtesy University of Tennessee)

KNOXVILLE—Some things are not always what they seem—even in space. For 30 years, scientists believed a large near-Earth object was an asteroid. Now, an international team including Joshua Emery, assistant professor of earth and planetary sciences at the University of Tennessee in Knoxville, has discovered it is actually a comet.

Called 3552 Don Quixote, the body is the third largest near-Earth object—mostly rocky bodies, or asteroids, that orbit the sun in the vicinity of Earth. About 5 percent of near-Earth objects are thought to be “dead” comets that have shed all the water and carbon dioxide in the form of ice that give them their coma—a cloud surrounding the comet nucleus—and tail. [Read more…]

Mars Curiosity Rover provides strong evidence for flowing water

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Mars Curiosity Rock Outcropping

Multiple outcroppings of rocks like this one (termed a pebble conglomerate) were observed along the first 275 meters traversed by the rover with the high-resolution Mastcam. (Submitted photo)

KNOXVILLE—Despite satellite images that show vast networks of channels, past Mars rover missions have shown limited evidence for flowing water on Mars.

Now, rocks analyzed by NASA’s Mars Curiosity Rover team, including Linda Kah, associate professor of earth and planetary sciences at the University of Tennessee in Knoxville, provide solid evidence that Mars had rivers or streams. This suggests that the environment was drastically different than today’s cold and dry conditions, with the potential to support life.

A paper on the team’s findings is published in this week’s edition of Science magazine. [Read more…]

Former astronaut on mission to promote math and science

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Astronaut Bernard Harris at ORNL

Astronaut Bernard A. Harris Jr., right, talks to Scott Wood, an Oak Ridge National Laboratory computer analyst and Roane State Community College observatory volunteer, after a Friday morning talk at ORNL.

He had prepared for this space mission for years, starting as a boy fascinated by the Apollo program and continuing through rigorous astronaut training.

Still, as Bernard A. Harris Jr. stepped out of the space shuttle Discovery in 1995—the first African-American to walk in space—he hesitated, afraid he might get sucked out of the craft’s air lock and fall 250 miles to Earth.

Holy cow, Harris thought as the Earth flew by far below at 17,500 miles per hour.

“I am really doing this,” Harris recalled thinking. “It was just incredible.”

[Read more…]