Oumuamua: Interstellar rock or sun-powered alien UFO?

As a mysterious flying object exits our solar system,
we asked experts to speculate on its origins

Last year, astronomers spotted an unusual interstellar object moving through the solar system at the breezy pace of 26 km per second. [...]

By Sarah Niedoba www.macleans.ca 12-28-18

This month, a pair of Harvard scientists published a paper suggesting that the object might be an abandoned alien spacecraft pushed forward by a “solar sail”—a device using energy from the sun to propel the vessel through space. In January 2019, it will travel beyond Saturn’s orbit on its way out of our solar system. In the interest of scientific rigour, Maclean’s has rounded up the hottest takes from Canada’s leading experts on what they believe ‘Oumuamua might be.

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Bill Nye's LightSail Spacecraft – Communication Lost

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By Arielle Duhaime-Ross
5-29-15

     Bill Nye's solar particle-powered spacecraft, LightSail, has lost communication with Earth. The spacecraft launched a week ago, but a software glitch has removed the craft's ability to send data back to Earth. So far, efforts to remotely reboot the craft's computer have failed. The only solution that scientists can think of right now is to push the manual reset button — an idea that isn't exactly realistic.

"There’s nobody in outer space to push that reset button," Bill Nye told The Planetary Society, the non-profit behind the LightSail project.

LightSail is made up of a small satellite with a 344-square-foot solar sail attached. It launched on May 20th, carrying many researchers' dreams of solar propulsion with it. . . .

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NASA to Launch World's Largest Solar Sail in 2014 | SPACE NEWS

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NASA to Launch World's Largest Solar Sail in 2014 | SPACE NEWS

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By Leonard David
www.space.com
1-31-13

      The largest solar sail ever constructed is headed for the launch pad in 2014 on a mission to demonstrate the value of "propellantless propulsion"— the act of using photons from the sun to push a craft through space.

Dubbed Sunjammer, the giant solar sail measures about 124 feet (38 meters) on a side and boasts a total surface area of nearly 13,000 square feet (1,208 square m, or one-third of an acre). The project is under the wing of NASA's Space Technology Program, within the agency's Office of the Chief Technologist.

NASA has contracted with a team of high-tech "solar sailors" at L'Garde Inc. of Tustin, Calif., to build Sunjammer.

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See Also:

Cosmos 1 'Lost in Space'

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Heavily Shielded Twin spacecraft Will Enter Treacherous Van Allen Radiation Belts

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