Technology Interstellar Asteroids Trapped by the Sun and Jupiter Could Deliver Alien Life to Our Solar System

18:00  03 february  2018
18:00  03 february  2018 Source:   europe.newsweek.com

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The mysterious asteroid could be a galactic bus carrying life between solar systems . ESO/M. Interstellar Asteroids Trapped by the Sun and Jupiter Could Deliver Alien Life to Our Solar System .

The interstellar asteroid ‘Oumuamua that is visiting our solar system from across the universe probably has an icy heart and dry skin, according to new astronomical Scientists are looking for alien signals from the bizarre-looking asteroid that is the first to visit our solar system from another place.

a close up of a logo: An artist’s depiction of what Oumuamua might look like. The mysterious asteroid could be a galactic bus carrying life between solar systems . © Provided by IBT Media (UK) An artist’s depiction of what Oumuamua might look like. The mysterious asteroid could be a galactic bus carrying life between solar systems . There could be thousands of alien rocks from distant solar systems just killing time in our neighborhood, according to a new pre-print paper posted to the site arxiv.org. If that's true, it could not only change the way we think about our solar system, but also have huge implications for the search for alien life.

The high number is the result of the inexorable tug of the two largest objects in our neighborhood, the sun and Jupiter. "The solar system acts as a fishing net," co-author Avi Loeb, an astronomer at Harvard University, told Newsweek. "Just like when you go fishing with a net you catch some fish, the solar system can capture interstellar objects."

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This mysterious object is zooming out of our solar system at more than 25 kilometers per second, but is still within reach of current or near-future spacecraft. But a mission employing the in-development BFR, with speed-boosting flybys of Jupiter and the sun , could theoretically chase 'Oumuamua down

Here, not listed in any particular order, are 12 unintentional ways we could do some serious damage to our Solar System , too. With life extinguished and Jupiter sucked up into a black hole, our neighborhood would be a complete mess.

The paper works from the recent discovery of Oumuamua, the first confirmed interstellar asteroid ever. Before spotting Oumuamua, scientists had thought that these long-distance travelers existed, but in relatively small numbers. But now that they've spotted one, they could use information like how long they looked at how much sky to estimate how many other interstellar objects could be in our solar system at any given time.

And once they knew that, Loeb and his co-author asked about the speed objects like Oumuamua could be traveling at. Their speed, combined with the mass of and distance between the sun and Jupiter, can tell astronomers whether or not objects hurtling in from beyond our solar system will get stuck here.

That's because the "fishing net" effect is caused by the combined gravity of the sun and Jupiter. If an object is moving fairly slowly, it gets sucked in by that gravity; if it's moving much faster—like Oumuamua, in fact—it can zoom through the solar system without getting trapped.

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Astronomers named our solar system visitor 'Oumuamua, which is Hawaiian for "scout" or "messenger" as it was fist It is the first interstellar object we've ever found in the solar system , and its elongated shape means it is totally unlike a normal asteroid . We Can ’t Detect Alien Life Just Yet.

The most likely visitor to our solar system would be a giant lump of ice. If all stars are as wasteful as our sun in building solar systems , there should be large numbers of interstellar objects out there in our galaxy. Jan 27, 2018. Could ' aliens ' already know there's life on Earth?

Once trapped, the study calculates, alien objects could be stuck in our neighborhood for a half a million years, or even longer. Some might be indistinguishable, but scientists should be able to catch at least the masqueraders that are icy by studying the chemical fingerprint of water vapor evaporating away. All in all, the trap means there should be plenty of time to study them and learn more about where they came from.

Loeb compares it to a family dinner. "You sit down for dinner and you're looking around the table and you assume that everyone is a member of the family," he said, but occasionally you realize there's a guest not related to the others. "Then you can learn about the outside world by examining that person."

In the case of asteroids, that could include answering questions like whether life exists beyond our planet, and if so, whether it can survive trips between different outposts. "It's almost like saving you the trip," Loeb said. "You don't need to go far, just in your backyard you can look at the fish that were caught up by the solar system."

And our solar system's table probably isn't the most crowded one out there. The new paper ran the same calculation on the nearest solar system to us, the Alpha Centauri system. Because that system has two suns instead of a sun and a large planet, the gravitational pull is stronger, which means more objects would be snared into orbit.

NASA is keeping tabs on Elon Musk's Tesla roadster .
SpaceX sent Elon Musk's roadster into deep space this week. Now, astronomers are tracking it just like a comet or asteroid.Elon Musk, the entrepreneur behind Tesla and SpaceX, put on a stunning show Tuesday with the inaugural launch of SpaceX's Falcon Heavy, which became the most powerful operational rocket in the world.

Source: http://us.pressfrom.com/news/science-and-technology/-117420-interstellar-asteroids-trapped-by-the-sun-and-jupiter-could-deliver-alien-life-to-our-solar-system/

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