According to the most popular theory, proposed by Dutch astronomer Jan Oort, during a very early phase of the solar system’s formation, the giant planets scattered objects into the outer regions far away from the sun. There, the icy rocks and dust particles formed a kind of cloud.
Passing stars may then scatter these objects back into the inner solar system, where we observe them as comets. Coming from the Oort cloud, these long-period comets often take many more than 200 years to orbit the sun.
Check out this next:
“The Outer Solar System: A Window to the Creative Breadth of Divinity” | Dan Peterson
I call your attention to something that has just been posted on the website of the Interpreter Foundation:
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Science & Mormonism Series 1: Cosmos, Earth, and Man : The Outer Solar System: A Window to the Creative Breadth of Divinity
Part of our book chapter reprint series, this article by Jani Radebaugh originally appeared in Science & Mormonism Series 1: Cosmos, Earth, and Man (2016).
Here are two quotations from Modern Physics and Ancient Faith , by Stephen M. Barr, a cosmologist and theoretical particle physicist at the University of Delaware:
This website can calculate your age on other planets in solar system - tech - Hindustan Times
San Francisco-based museum of science, technology and arts, The Exploratorium has a website that calculates the age of users on any planet in the solar system as per their date of birth on Earth.
The age calculator also tells users when they can celebrate their next birthday on a different planet. The age is calculated based on the planet’s rotation and revolution around the sun.
Thus for a person, who is born on July, 1989 and aged 30 years on Earth, the calculator computes their age to be 126.6 years on Mercury, 49.5 years on Venus, 16.2 years on Mars, 0.122 years on Pluto and so on, so forth.
"Gargantua" –The Black Hole That Could Swallow Our Solar System (2019 Most Popular) | The Daily
This past April 2019, with an event that was as epic as the Apollo 11 landing on the Moon, the world viewed its first image of what had once been purely theoretical, a black hole at the heart of galaxy M87, frozen in time it was 55 million years ago, the size of our solar system, and bigger, with the mass of six and a half billion suns that was captured by a lens the size of planet Earth and 4,000 times more powerful than the Hubble Space Telescope.
While you're here, how about this:
Meteors: Dust streams in the solar system
During the course of its annual circuit around the sun, the Earth encounters numerous streams of dust that have been left behind by comets passing through the inner solar system. When this happens, the individual grains of dust within these streams enter our atmosphere at speeds of up to several tens of miles per second, leaving behind a bright streak of light as they burn up due to friction; in other words, a meteor.
There are many such dust streams within the inner solar system, and, indeed, well over a hundred meteor showers have now been identified. The vast majority of these are very minor affairs, producing at most no more than two or three meteors per hour, and are barely distinguishable above the background "noise" of random meteors. There are less than a dozen of what could be considered "significant" meteor showers, i.e., those that produce ten or twenty, or more, meteors per hour.
Solar panels on homes are increasingly popular, but should you buy, lease or
Across the U.S., a majority of homeowners have either seriously considered installing solar panels or have already done so, according to a Pew survey last month.
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Sunrun, which sells solar panels primarily through long-term lease agreements, in October saw traffic spike 1,500% to the page on its website that explains how to power through blackouts, shortly after California's Pacific Gas & Electric cut power proactively to thousands of people hoping to prevent wildfires.
One Year Ago, NASA's New Horizons Made the Most Distant Flyby in Space History | Space
In the early hours of 2019, NASA's New Horizons zipped past the Kuiper Belt Object 2014 MU69, making the most distant spacecraft flyby ever performed. Over the last 12 months, researchers have teased a lot of information out of the images captured over the few hours leading up to and after the exploration of one of the most primordial objects in the solar system.
Team member Kelsi Singer, a planetary scientist at the Southwest Research Center in Colorado, echoed the sentiment. "I can't believe it was already a year ago," Singer said.
Rocket Launches, Trips to Mars and More 2020 Space and Astronomy Events - The New York Times
If you follow space news and astronomy, the past year offered no shortage of highlights. Astronomers provided humanity's first glimpse of a black hole. China landed on the moon's far side. And the 50th anniversary of the Apollo 11 moon landing inspired us to look ahead to our future in space.
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Roughly every two years, the orbits of Earth and Mars come closer than usual . Space agencies on Earth often send missions to the red planet during that window, and in 2020 four such launches are scheduled.
Happening on Twitter
Ring in a #HappyNewYear with beautiful Saturn! 😍 No other planet in our solar system has rings as splendid as Sat… https://t.co/MdvzE8cotG NASA Wed Jan 01 05:01:04 +0000 2020
We landed on Mars twice; flew between Saturn and its rings; discovered ocean worlds and found planets beyond our so… https://t.co/Hn4SxliTT1 NASAJPL_Edu (from Pasadena, CA) Tue Dec 31 18:46:24 +0000 2019
For centuries, we've been fumbling around in the dark while trying to understand what lies beyond our solar system. https://t.co/BqzuPeVg4A PopMech (from New York City) Tue Dec 31 19:00:07 +0000 2019
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