Scientists Now Say Interstellar Object May Have Been Alien Probe

Scientists Now Say Interstellar Object May Have Been Alien Probe

Harvard scientists reexamined the bizarre, interstellar space object known as “Oumuamua,” which rocketed through our solar system late last year, resurrecting the possibility that it may be an alien probe. Academics and scientists were quick to write off the cigar-shaped object as a previously unknown type of bolide – a comet or asteroid – propelled in a highly unusual manner, but their observations are once again, being challenged.

Oumuamua, which means “a messenger sent to reach out in advance,” was first observed by Robert Weryk at the Pan-STARRS 1 telescope in Hawaii. He measured the object to be several hundred meters in length, or the size of a large sports stadium.

The size and shape of the object were calculated to be able to hold up to collisions with space dust and debris while maintaining enough momentum to travel the vast distance between stars, but recent examinations found a discrepancy in its mass-to-area ratio that doesn’t quite add up.

“Known solar system objects, like asteroids and comets, have mass-to-area ratios orders of magnitude larger than our estimate for ‘Oumuamua,” said Shmuel Bialy and Abraham Loeb of the Harvard Smithsonian Center for Astrophysics.

“If radiation pressure is the accelerating force, then ‘Oumuamua represents a new class of thin, interstellar material, either produced naturally, or of an artificial origin.”

They went on to speculate about the possibility of Oumuamua as a type of artificial satellite known as a lightsail, which is currently in development by the Breakthrough Initiative program founded by Yuri Milner and Stephen Hawking. Loeb is a member of the Breakthrough Starshot Initiative.

“The lightsail technology might be abundantly used for transportation of cargos between planets or between stars. In the former case, dynamical ejection from a planetary system could result in space debris of equipment that is not operational anymore and is floating at the characteristic speed of stars relative to each other in the Solar neighborhood. This would account for the various anomalies of ‘Oumuamua, such as the unusual geometry inferred from its lightcurve,” Bialy and Loeb said.

Oumuamua hurdled through our solar system at 58,000 mph when it was discovered on Oct. 19, 2017. The object was then propelled by the Sun’s gravity, causing it to blast off on a hyperbolic trajectory out of our solar system at a rate of 196,000 mph.

This exit speed was initially attributed to a combination of a gravity assist from the Sun and outgassing – the release of gasses from a comet as its surface heats. But scientists noticed that Oumuamua didn’t show the typical “coma,” or cloud of gas, one might expect from an outgassing comet, making its high escape velocity especially strange.

This led Loeb and Bialy to consider another potential for Oumuamua… a more exciting one.

“Alternatively, a more exotic scenario is that ‘Oumuamua may be a fully operational probe sent intentionally to Earth vicinity by an alien civilization,” the authors said.

Unfortunately it’s way too late for us to send a probe to Oumuamua or even to photograph it so that it could be studied properly, due to simply to its sheer speed and the distance it’s already travelled from Earth. Instead, Bialy and Loeb suggest we keep our eyes out for similar objects careening through our local celestial neighborhood.

For more on the potential techno-signatures of extraterrestrial civilizations watch this episode of Deep Space :



The Longest Lunar Eclipse of the Century is This Week

The longest partial lunar eclipse is this week. What can we learn from the ancients about this celestial transitional event?

In the early morning hours of November 19, the moon will be in partial eclipse. NASA says the moon will slip behind the Earth’s shadow for about two and a half hours, and weather permitting, a huge swatch of the planet will be able to see at least some of the eclipse. The moon, as well as other celestial bodies, have played a big role in the lives of ancient peoples, mystics, and shamans.

Jack Cary, researcher and author of “Paranormal Planet,” said about the history and significance of the eclipse, “In ancient times, eclipses were always seen as an omen, whether it be good or bad. As the sun or the moon becomes shaded over, you’re seeing a connection both of the feminine and the masculine qualities of existence, and because of that it was seen as a holy union.”

What is the connection between the moon and divine feminine energy throughout history?

“The moon itself has always been seen as the goddess of the sky, and because of that all goddesses that were worshipped around the world in ancient civilizations all had this symbolism of the moon itself,” Cary said.

What did the ancient people know about the planets that we should remember now?

Read Article

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