Saturday, June 13, 2020

Observatories Around the Solar System Team Up to Study Sun's Influence | NASA

Publisher: NASA
Date: 2020-05-29T13:21-04:00
Twitter: @11348282
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This may worth something:

NASA's New Horizons Captures 'Alien Sky' at Edge of Solar System | king5.com
Publisher: king5.com
Date: 6/12/2020 2:46:52 PM
Twitter: @KING5Seattle
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Colliding galaxies created the solar system, say astronomers – Physics World

The solar system may have been formed in a long-ago collision between the Milky Way and its orbiting companion the Sagittarius dwarf galaxy. That is the conclusion of astrophysicists in Spain, who have analysed data from the Gaia space observatory . This cosmic “fender bender” – which occurred as Sagittarius' orbit plunged it through the plane of our galaxy – helped to concentrate cosmic dust in and usher in a period of heightened star formation.

First identified as a satellite galaxy of the Milky Way in 1994, the Sagittarius Dwarf Spheroidal Galaxy is around one tenth of the diameter of the Milky Way. Made up of four main globular clusters of stars, our elliptical-shaped neighbour is spiralling around our galaxy on a polar orbit about 50,000 light-years from the galactic core. This brought the galaxy through the plane of the Milky Way several times in the past.

Publisher: Physics World
Date: 2020-06-12T12:13:36 00:00
Twitter: @PhysicsWorld
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Rocks Go Wild: How to Make a Solar System | astrobites

First Author's Institution: School of Interdisciplinary Social and Human Sciences, Kindai University

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The authors also have different configurations of the gas giant planets which we believe should have mostly formed by the time terrestrial planets started to form. Their location and eccentricities would affect the movements of bodies within 2AU.  They run 540 different combinations of these initial contentions and let the rocks go wild.

Out of these 540 different solar systems, it's time to find the systems that are most like our solar system. There are a few criteria  to narrow them down. They define the region within 2 AU of the star [where 1 AU is the distance of the Earth to the sun, today] as the planetary region, and outside of that is the asteroid belt. Are there at least three planets in the planetary region? Yes? Good. Moving on. Are there at least two that are Venus/Earth massed? Yeah? Fantastic.

Publisher: astrobites
Date: 2020-05-29T13:09:45-04:00
Author: Jenny Calahan
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While you're here, how about this:

NASA sun observatory spies Comet Atlas in the solar wind. (Mercury, too!) | Space

You'll need a minute to take it all in, there's a lot going on in this stunning view of the inner solar system , including a comet, Mercury and some solar weather.

First, let's get oriented. You're looking through the eyes of NASA's Solar Terrestrial Relations Observatory A, or STEREO-A. The spacecraft launched in 2006 with its now-silent twin to study the sun, in particular from angles we can't see from Earth. The spacecraft is about one-sixth of an orbit ahead (hence the A in its name) of Earth, with the sun off-screen to the left in the new images.

Publisher: Space.com
Date: 2020-06-09T17:27:09 00:00
Author: https www facebook com spacecom
Twitter: @SPACEdotcom
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New Energy Equity develops 789-kW tracking solar project at Ohio school

New Energy Equity (NEE), a solar developer and financier based in Annapolis, Maryland, collaborated with New Resource Solutions (NRS) and Solscient Energy to complete a 789-kW ground-mounted solar array for Hicksville Public Schools in Hicksville, Ohio.

The project is part of a series of clean energy transformations made by Hicksville Schools over the past 10 years.

“This project is one our district has researched for the past couple years. We are excited to have it up and running and look forward to the substantial savings it will provide the district,” said Keith Countryman, superintendent.

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Publisher: Solar Power World
Date: 2020-06-12T12:58:35 00:00
Author: facebook com solarpowerworld
Twitter: @SolarPowerWorld
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Solar industry warns new plan 'devastate' rooftop solar

"It feels very simple to me. This is just a complete, existential attack on solar," said Dave Rosenfeld, executive director of the Solar Rights Alliance, which advocates for solar users in California. "And in just one fell swoop, it would devastate solar."

For years, FERC has maintained that states have jurisdiction over net metering and that it would not take control. In its petition, NERA is asking the federal agency to do just that.

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Here's how net metering works. If you have solar panels installed on your house, you likely use less electricity during the day than the panels generate. Those excess electrons are pushed onto the grid, and you receive a credit that counts against your bill for the power you'll need to purchase from the local utility at other times, like at night, during cloudy days or during hours of peak demand.

Publisher: Desert Sun
Author: Mark Olalde
Twitter: @mydesert
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Saturn's moon Titan is rapidly migrating away from the planet

CNN – Titan, Saturn's largest moon, is moving away from its planet a hundred times faster than previously established, according to a new study.

The giant moon isn't alone in this behavior; other moons among the 150 known moons in our solar system are also slowly distancing themselves from the planets they orbit, including our own moon. Earth's moon moves about 1.5 inches away each year, according to NASA .

This is caused by the moon's gravity tugging on the planet, which creates a temporary bulge in the planet. That energy pushes the moon further away.

Publisher: KSAT
Date: 2020-06-10T13:55:07.865Z
Author: Ashley Strickland
Twitter: @KSAT
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