Sunday, December 15, 2019

Interstellar comet 2I/Borisov is whizzing through the solar system. - Vox

The Hubble Space telescope recently captured the alien visitor, which is moving at around 100,000 mph.

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This is a Hubble Space Telescope image of a comet that is passing through our solar system. It was born around a star that is not our own, then flung off into space by some unknown cataclysm.

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Publisher: Vox
Date: 2019-12-13T15:10:00-05:00
Author: Brian Resnick
Twitter: @voxdotcom
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And here's another article:

China plans space program to search beyond solar system - CCTV News - CCTV.com English

China has started preliminary research for a futuristic scientific program scheduled to be launched around 2030 to search for potentially habitable planets outside our solar system, according to a key figure in the nation's space industry.

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An artist's conception of an exoplanet beyond our own solar system known to astronomers as LHS 3844b, which lies about 48.6 light years from Earth is shown in this handout photo obtained August 19, 2019. [Photo/Agencies]

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Moon FARSIDE: Lunar Astronomy Proposal Takes Aim at Cosmic Dark Ages and Exoplanets | Space

The far side of the moon is an attention grabber for many reasons. A new mission idea capitalizes on those reasons in a project dubbed the Farside Array for Radio Science Investigations of the Dark ages and Exoplanets, shortened to this enlightened abbreviation: FARSIDE.

The concept would place a low-radio-frequency interferometric array on the far side of the moon . Jack Burns of the University of Colorado Boulder and Gregg Hallinan of the California Institute of Technology have sketched out a way to execute the mission in a NASA-funded report published last month.

Publisher: Space.com
Date: 2019-12-15T13:51:37+00:00
Author: https www facebook com spacecom
Twitter: @SPACEdotcom
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Lethbridge will soon feature Canada's largest scale model of the solar system

The Lethbridge Astronomy Society came up with the idea, and city council approved the project this week.

A few blocks down the street, there will be a pedestal with a scale model of Mercury — at three quarters of an inch in diameter, it will be in scale with the diameter of the sun.

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Earth, for example, will be the size of a tennis ball in relation the the size of the "sun". Mars will be inside city limits. Neptune, the furthest planet, will be about 10 kilometres outside city limits.

Publisher: CBC
Twitter: @cbc
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Quite a lot has been going on:

Comet Borisov visits from outside solar system

It was only two years ago that the first confirmed interstellar object was identified passing through the solar system. The fact that the asteroid-like object ‘Oumuamua appeared to be very elongated – about 10 times as long as it was wide – made for some great science fiction speculation.

This month our solar system has its second confirmed visiting object – comet 2I/Borisov. Named after its discoverer, it made its closest approach to the sun (somewhat outside the orbit of Mars) on Dec. 8. It will make its closest approach to the Earth on Dec. 28. Because it is only barely in what is considered the inner solar system, you would need at least a 10-inch-diameter telescope to see it.

Publisher: Durango Herald
Date: 2019-12-14 04:03:08 -0700
Twitter: @durangoherald
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Tesla releases giant new home solar power system - Electrek

Tesla has released a giant new version of its latest home solar system – a 15.4 kW solar system suitable for 4,000+ sq ft homes.

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More recently, Tesla launched a new solar rental service under which homeowners can get a solar panel system for just $50 per month.

The company has been making its pricing simpler, more transparent, and they have been pushing the energy products more actively.

Tesla has now updated its home solar offering with a giant new solar rooftop option with a 15.2 kW capacity:

Publisher: Electrek
Date: 2019-12-14T20:11:04+00:00
Twitter: @electrekco
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We're All Made of Stardust. But an Unusual Amount on Earth Comes From Red Giants

We've all heard this one: when you drink a glass of water, that water has already been through a bunch of other people's digestive tracts. Maybe Attila the Hun's or Vlad the Impaler's; maybe even a Tyrannosaurus Rex's.

That's what a team of researchers at ETH Zurich (Ecole polytechnique federale de Zurich) wanted to know.

Within that disc of material were dust grains that had formed around certain other stars. These special grains were distributed unevenly throughout the disc, "like salt and pepper," according to Maria Schönbächler, a professor at the Institute of Geochemistry and Petrology at ETH Zurich.

Publisher: ScienceAlert
Author: Evan Gough Universe Today
Twitter: @ScienceAlert
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Water is 'common' in the atmospheres of planets outside our solar system - but only in tiny

It is common for distant exoplanets orbiting faraway stars to have water in their atmosphere, a shock new study reveals.

Scientists scouring the composition of 19 worlds for five years say that water is often spotted on alien worlds, but in low amounts.

A total of 14 of these worlds had water vapour floating in its atmosphere, and key chemicals sodium and potassium were each present on six.

Publisher: Mail Online
Date: 2019-12-11T13:15:25+0000
Author: Joe Pinkstone
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