Thursday, October 31, 2019

Second interstellar visitor may be carrying water from beyond our solar system, shocking study

A shocking new study suggests that the second interstellar object ever discovered, Comet 2I/Borisov, could be carrying water on it from beyond the Solar System.

The study suggests that 2I/Borisov, discovered on Aug. 30 by astronomer Gennady Borisov, is releasing water vapor on its journey.

"Using a simple sublimation model we estimate an H2O active area of 1.7 km2 [0.65 miles squared], which for current estimates for the size of Borisov suggests active fractions between 1-150 [percent], consistent with values measured in Solar System comets," the study's abstract states! Videos for Second Interstellar Visitor May Be 1:04 Interstellar Comet 'Borisov' May Hold Alien Water, Scientists Say MSN!! It is common for asteroids in the Solar System to carry water.

The study was submitted to The Astrophysical Journal Letters and can be read on the  arXiv repository ,

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"The discovery of interstellar comet 2I/Borisov provides an opportunity to sample the volatile composition of a comet that is unambiguously from outside our own Solar System, providing constraints on the physics and chemistry of other protostellar discs," the researchers wrote in the paper.

Publisher: Fox News
Date: 2019-10-31
Twitter: @foxnews
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Best pictures of the solar system from the decade you were born - Business Insider

For decades, scientists have pointed Earthly lenses toward the sky to capture images of the cosmos. Even the earliest rockets that launched off the planet brought cameras into space. 

At first, our photos of the solar system came back grainy, unclear, and colorless. The very first image taken in space, for example, came from a 33mm motion-picture camera that American scientists strapped to a captured German rocket and launched off Earth at the end of World War II. The camera fell back to Earth and shattered, but the film survived.

Other early solar-system images came as NASA and the Soviet Union explored the moon for the first time — people born in the 1950s and 60s grew up with the iconic photos of the first astronauts walking on the moon.

Since then, increasingly sophisticated missions have ventured farther into space with better and better cameras! 0:56 How To Get Primal Hide: Makes Space Suits, Won't Travel - The Outer Worlds YouTube!! Kids in the '80s got the first up-close images of Saturn and Neptune, while children today are accustomed to high-quality colorful shots of the deserts of Mars and swirling clouds of Jupiter. 

Publisher: Business Insider
Date: 2019-10-22
Author: Morgan McFall Johnsen
Twitter: @SciInsider
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Alien comets may be common, object from beyond Solar System suggests | Science | AAAS

The comet is an alien intruder from another star system. But 2I/Borisov, the second known interstellar visitor after far smaller 'Oumuamua , discovered in 2017, looks remarkably like a normal comet from our own Solar System: an object a few kilometers across spewing carbon monoxide gas, water vapor, and dust. Researchers who announced their analysis this week say the size of the two objects, along with the rate of their discovery and other factors, suggests that at any given moment more than a dozen interstellar visitors at least as large as 'Oumuamua are passing through the Solar System.

"Our current telescopes are not powerful enough to detect all of these objects," says Bryce Bolin, an astronomer at the California Institute of Technology in Pasadena and lead author of the new study! Second interstellar visitor may be carrying water from ...water...A shocking new study suggests that the second interstellar object ever discovered, Comet 2I/Borisov, could be carrying water on it from beyond t Second interstellar visitor may be carrying water from beyond our solar system, shocking study suggests | CHOCHILINO!! But in the future, he says, large telescopes will be able to catch these visitors more often, perhaps two or three times a year.

Publisher: Science | AAAS
Date: 2019-10-29T12:42:14-04:00
Author: W Wayt Gibbs
Twitter: @newsfromscience
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NASA's Voyager Missions Were Amazing. Now Scientists Want a True Interstellar Probe | Space

WASHINGTON — Humanity should consider building an interstellar probe to see our neighborhood from an outside point of view, argued several scientists at a recent conference.

NASA's Voyager 1 and 2 spacecraft are the only machines that people have sent beyond our solar system. These 42-year-old spacecraft are still functioning well enough to send us information from interstellar space, and many of their insights have been surprising, according to Stamatios (Tom) Krimigis, the principal investigator of the low-energy charged particle experiment that is still working on both spacecraft.

"The models have been wrong," Krimigis told delegates on Oct. 25 at the International Astronautical Congress held here. One prominent example was the shape of the heliosphere, or the region of space in which the stream of charged particles emanates from our sun and wraps around the solar system! Second interstellar visitor may be carrying water from ...water...close Video Fox News Flash top headlines for Oct. 31 Fox News Flash top headlines for Oct. 31 are here. Check out what's clicking on Foxnews.com A shocking new study suggests that the second interstellar object ever discovered, Comet 2I/Borisov, could be carrying water on it from beyond the Solar System. The study suggests that 2I/Borisov, discovered on Aug. 30 by astronomer Gennady Borisov ...!! Until the 2010s, scientists thought it had a fan shape; the Voyagers, upon crossing the heliosphere in 2012 and 2018, revealed it is more like a bubble. 

Publisher: Space.com
Date: 2019-10-30T16:00:00+00:00
Author: https www facebook com spacecom
Twitter: @SPACEdotcom
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This is the closest solar system to Earth containing multiple planets - CNN

(CNN) Just 11 light years from earth is the GJ 15 A star system with two planets orbiting a red-dwarf star. This makes it the closest solar system to Earth that contains multiple planets.

Publisher: CNN
Date: 2019-10-16T22:26:17Z
Author: Ashley Strickland CNN
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In a Distant Galaxy, Colliding Exoplanets Are Upending What We Knew About Solar System Formation

"This is a rare opportunity to study catastrophic collisions occurring late in a planetary system's history," Alycia Weinberger, a staff scientist at the Carnegie Institution for Science in Washington, D.C., and author of a recent paper on the collision, said in a statement .

Clouds of dust are ubiquitous in space. Planets form when the dust particles floating around young stars clump together and grow over millions of years into large, gravitationally dense objects! Second interstellar visitor may be carrying water from ...-carrying...Second interstellar visitor may be carrying water from beyond our solar system, shocking study suggests 0 shares A shocking new study suggests that the second interstellar object ever discovered, Comet 2I/Borisov, could be carrying water on it from beyond the Solar System.!! By the time planets settle into their orbits around a star, much of the smaller particles of dust and debris in the environment have either been pulled into the star as fuel, or swept away by solar winds into a ring of schmutz on the solar system's cold outer edges. 

Our solar system's frigid Kuiper Belt , which stretches for hundreds of millions of miles beyond the orbit of Neptune and contains thousands of rocky objects (including the dwarf planet Pluto), is a prime example of this. The dust, asteroids and planetoids out there are extremely cold, due to their distance from the sun.

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Publisher: _____
Date: 2019-10-24T20:10:25+00:00
Author: _____
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