Not to change the topic here:
Rovers of the Solar System | NASA Solar System Exploration
From the Lunar Reconnaissance Orbiter Camera Team: A coloring and activity booklet featuring past, present, and future rovers across the solar system. Grab your coloring tools & let's see what you create!
Heating events in the nascent solar system recorded by rare earth element isotopic fractionation
Equilibrium condensation of solar gas is often invoked to explain the abundance of refractory elements in planets and meteorites. This is partly motivated, by the observation that the depletions in both the least and most refractory rare earth elements (REEs) in meteoritic group II calcium-aluminum–rich inclusions (CAIs) can be reproduced by thermodynamic models of solar nebula condensation.
During condensation from a supersaturated medium, the light isotopes will impinge on mineral surfaces more frequently than the heavy isotopes, resulting in a light isotope enrichment in the condensed phase relative to the vapor. Conversely, during evaporation in an undersaturated medium, the light isotopes will be more readily lost than the heavy ones, resulting in a heavy isotope enrichment of the condensed phase relative to the vapor.
Exoplanet Found by Hubble Resembles Reputed "Planet Nine" in Our Solar System
Astronomers confirm bound orbit for planet far from its star, showing that far-flung planets exist.
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The big question, until now, has been whether the planet, called HD 106906 b, is in an orbit perpetually bound to the binary star — which is a mere 15 million years old compared to the 4.5 billion-year age of our sun — or whether it’s on its way out of the planetary system, never to return.
In a paper published in December 2020 in The Astronomical Journal , astronomers finally answer that question. By precisely tracking the planet’s position over 14 years, they determined that it is likely bound to the star in a 15,000-year, highly eccentric orbit, making it a distant cousin of Planet Nine.
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Harvard Physicist Avi Loeb Claims Alien Object Pierced Our Solar System in 2017
A renowned Harvard physicist has a bold theory -- a celestial object that hurled through our solar system in 2017 was actually not of our galaxy ... but from another, perhaps light-years away.
Check it out ... Avi says when it was studied by physicists and other scientists at the time, it had none of the makings of a typical asteroid or meteor that we would see from a distant star in the Milky Way. On the contrary, he explains that it was actually propelled by an unknown source, and appears (to him, anyway) to have pierced through from a faraway place.
Mars canyon is larger than Grand Canyon, biggest in solar system: NASA
Arizona's Grand Canyon may be awe-inspiring, but it's just "a scratch" compared to the massive Valles Marineris Canyon on Mars.
Slicing along the Martian equator for about 2,500 miles, the canyon would reach from New York City to San Francisco if placed in the United States, according to NASA . The canyon floor sinks 7 miles into the surrounding plains. That is as deep as some of the deepest parts of Earth's ocean.
It's the largest canyon in the solar system, and new images from the Mars Reconnaissance Orbiter reveal details about its colossal size.
"Sent By an Alien World?
Home » Astrobiology » “Sent By an Alien World?” –Extraterrestrial Object Visited Our Solar System in 2017
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All hell broke out when Loeb followed up with a new paper suggesting that the interstellar object we now know as Oumuamua might be a spaceship, “a lightsail, from an alien civilization."
“The Last Word” –Clashing Conclusions on the Oumuamua Interstellar Mystery from SETI’s Seth Shostak and Harvard’s Avi Loeb
Home Solar Is Growing, but Big Installers Are Still Losing Money - The New York Times
Solar panels atop a home in Brooklyn. Home solar installations, measured by their power capacity, grew 17 percent last year. Credit... Karsten Moran for The New York Times
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Those losses are an ominous reminder of how hard it can be to make money in an industry widely viewed by political leaders and business executives as an important part of the global effort to address climate change. Solving this problem could help determine whether the use of residential solar power is quickly and widely adopted.
Happening on Twitter
Nasa's new space telescope to unlock the mysteries of the Big Bang https://t.co/Pft0WkOfdy Independent (from London, England) Wed Jan 06 23:57:56 +0000 2021
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