Monday, May 10, 2021

NASA's Voyager 1 detects faint, persistent hum beyond our solar system - CNET

The border is a messy "edge" where the sun's influence disappears and the interstellar medium begins. The medium is typically characterized as empty, desolate and dark, but the PWS on Voyager 1 has detected a low, constant pattering against its detector, space raindrops gently falling on a window. Those drops signify plasma waves -- or interstellar gas -- is constant company for the spacecraft.

"We're detecting the faint, persistent hum of interstellar gas," said Stella Koch Ocker, a doctoral student at Cornell University who lead the research. "It's very faint and monotone, because it is in a narrow frequency bandwidth."

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Publisher: CNET
Author: Jackson Ryan
Twitter: @CNET
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Massive Flare Seen on Closest Star to the Solar System: What It Means for Chances of Alien

Proxima Centauri is the closest star to the solar system and is home to a potentially habitable planet. Credit: Hubble, European Space Agency

Proxima Centauri is the closest star to this solar system. A couple of years ago, a team discovered that there is a planet – called Proxima b – orbiting the star . It’s just a little bit bigger than Earth, it’s probably rocky and it is in what is called the habitable zone, or the Goldilocks zone. This means that Proxima b is about the right distance from the star so that it could have liquid water on its surface.

Publisher: SciTechDaily
Author: Mike O
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First in Flight: NASA Just Proved Flying on Mars Is Possible--Next Up Is the Solar System -

Picture the scene: A small drone the size of a suitcase descends into a dark Martian crevasse—perhaps a lava tube that was formed billions of years ago by volcanic activity on the Red Planet. The drone illuminates its surroundings, recording views never seen before by human eyes as its suite of instruments seeks out signs of past or present alien biology. Finally, its reconnaissance complete, the drone flies back to a landing zone on the surface to transmit invaluable data back to Earth.

Publisher: Scientific American
Author: Jonathan O
Twitter: @sciam
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We Don't Need Elon Musk to Explore the Solar System

Elon Musk, the third-richest man in the world, CEO of SpaceX and Tesla (and dabbler in online edgelord provocation), issued a strange Twitter post last month in defense of his wealth.

And then, this week, the centibillionaire further provoked when he mentioned in an interview about Martian colonization that, while it would be a glorious experience, "a bunch of people will probably die in the beginning."

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Florida Solar System Installation – Speedy/Saver Service

Pensacola, United States, May 08, 2021 (GLOBE NEWSWIRE) -- Sunny Day Solar has launched its updated solar system installation service in Florida. The company specializes in helping customers achieve energy independence.

Installing a solar system with Sunny Day Solar increases the value of any building for homeowners looking to sell their home later. Energy efficient buildings are becoming increasingly popular among buyers and equipping your home or business with a solar system will make the property more attractive for prospective buyers by offering them long term savings on their energy bill without ever having one to begin with.

Publisher: GlobeNewswire News Room
Date: 5/8/2021 9:46:09 AM
Author: Sunny Day Solar Farms LLC
Twitter: @globenewswire
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Is primordial black hole causing Uranus to have unusual orbit?

On March 13, 1781, astronomer William Herschel pointed his telescope into the night sky and discovered the planet Uranus, the first such discovery in historical times. Over the next 45 years, as astronomers observed Uranus looking for possible moons, they realized its orbit didn't follow the known laws of gravity. Some astronomers surmised that perhaps Newton's gravitational laws didn't work so far from the sun.

But two mathematicians decided that the discrepancy occurred due to the gravitational attraction of an eighth planet even farther out. Unbeknownst to each other, French astronomer Rubin Le Perrier and British mathematician John Couch Adams both began calculating the likely position of such a planet based on the aberrations of the orbit of Uranus. On Sept. 23, 1846, French astronomer Johanne Galle found Neptune within one degree of the predicted position.

Publisher: The Oklahoman
Author: Wayne Harris Wyrick
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Travel the solar system as Planet Walk returns to Anne Arundel - Capital Gazette

Planet Walk is a tradition on the B&A Trail that explores the solar system through a series of sculptures representing different planets (and poor Pluto).

This year, Planet Walk lectures and discussions will be conducted virtually on Saturday, thanks to COVID-19 precautions. But you can still walk the sculpture path from Severna Park to Glen Burnie to get a sense of the solar system's size.

Presented by The Friends of Anne Arundel County Trails, NASA's Goddard Space Flight Center and the Anne Arundel Community College Astronomy Club, this year's walk program will be a free, virtual event.

Publisher: capitalgazette.com
Date: AAC9C18F70AC386BC4DCF4DDF9BF1786
Author: Capital Gazette staff
Twitter: @capgaznews
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Solar 101: How to evaluate solar contractors for rooftop projects – pv magazine

A well-designed rooftop solar system should last 20 or 30 years, or longer. This guide for choosing the right contractor should help ease your concerns.

The first articles in our Solar 101 series, ( Is my roof ready for solar? ) and ( Attaching your solar system to your roof ) examined how the age and physical characteristics of a roof affect the design and payback of a prospective solar system. We also discussed the design constraints resulting from wind, dirt, and precipitation.

Publisher: pv magazine International
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NASA spacecraft begins 2-year trip home with asteroid rubble - ABC News

CAPE CANAVERAL, Fla. -- With rubble from an asteroid tucked inside, a NASA spacecraft fired its engines and began the long journey back to Earth on Monday, leaving the ancient space rock in its rearview mirror.

Osiris-Rex reached asteroid Bennu in 2018 and spent two years flying near and around it, before collecting rubble from the surface last fall.

The University of Arizona's Dante Lauretta, the principal scientist, estimates the spacecraft holds between a half pound and 1 pound (200 grams and 400 grams) of mostly bite-size chunks. Either way, it easily exceeds the target of at least 2 ounces (60 grams).

Publisher: ABC News
Date: 2021-05-10T21:33:15Z
Author: ABC News
Twitter: @ABC
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