The oldest dated solids in the solar system are calcium-aluminum–rich inclusions (CAIs), and these samples provide a direct record of solar system formation. These micrometer- to centimeter-sized inclusions in meteorites formed in a high-temperature environment (more than 1,300 Kelvin), probably near the young sun. They were then transported outward to the region where carbonaceous chondrite meteorites (and their parent bodies) formed, where they are found today.
This is where the LLNL team comes in. The international team measured the molybdenum (Mo) isotopic and trace element compositions of a variety of CAIs taken from carbonaceous chondrite meteorites, including Allende, the largest carbonaceous chondrite found on Earth.
This may worth something:
Sinister Sounds of the Solar System | NASA Solar System Exploration
You’ve heard the creaks, cracks, and cackling noises of our universe before. Using data from our spacecraft, our scientists gathered NEW sinister sounds from the depths of space in time for Halloween.
Listen to our playlist filled with new “moans” and “whistles” from our universe that would scare the most ghoulish of creatures.
Our solar system was formed in less than 200,000 years, study reveals | Daily Mail Online
Researchers had expected the timeframe for the solar system's development be closer to one to two million years, judging by the development of other star systems.
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'Previously, the timeframe of formation was not really known for our solar system,' said LLNL cosmochemist Greg Brennecka, lead author of a paper published Thursday in the journal Science.
'This work shows that this collapse, which led to the formation of the solar system, happened very quickly, in less than 200,000 years.'
Every Planet In the Solar System Will Appear This Week, Even Ex-Planet Pluto | Science Times
This November, we may not have a meteor shower show, a blue moon, and only certain countries have the privilege of witnessing the Northern Lights. What we do have in a single week, however, is the appearance of every planet in our Solar System.
Some nearby planets such as Jupiter and Mars can be seen even without binoculars. However, the furthest planets like Neptune and ex-planet Pluto can be spotted with a telescope.
Jupiter and Saturn will be found near the crescent Moon and easily spotted in the sky's southwestern region. The two gas giants are also moving closer together each day and will appear the brightest right after the New Moon.
While you're here, how about this:
Lunar water: Solving the biggest mysteries in the solar system
As part of NASA's upcoming Artemis mission, the space agency wants to build a permanent base on the Moon that will help astronauts reach further into the cosmos.
Critical for these journeys into space? Water. Having enough lunar H20 could make interstellar travel considerably cheaper and easier. And, in a game-changing discovery, scientists have finally found the best evidence yet that not only is there water on the Moon — but there's plenty of it.
Astronomical context of Solar System formation from molybdenum isotopes in meteorite inclusions |
The oldest solids that formed in the Solar System are calcium-aluminium–rich inclusions (CAIs), small metallic droplets that were later incorporated into meteorites. The ages of CAIs are conventionally taken as the age of the Solar System, but which exact moment in star formation they correspond to has been unclear. Brennecka et al. measured molybdenum isotope ratios in CAIs and found a wide range of origins in both the inner and outer Solar System.
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By Gregory A. Brennecka , Christoph Burkhardt , Gerrit Budde , Thomas S. Kruijer , Francis Nimmo , Thorsten Kleine
'Planet hunter' telescope to chart 1,000 planets outside our solar system - The Irish News
The European Space Agency (ESA) has given the green light to the world’s first space telescope – dubbed the planet hunter – to study the atmospheres of planets outside our solar system.
The information will provide scientists with a full picture of what exoplanets are made of, how they were formed and how they will evolve.
The Atmospheric Remote-sensing Infrared Exoplanet Large-survey (Ariel) has undergone a rigorous review process throughout 2020 and is now due for launch in 2029.
Humans Have Been Around for Longer Than it Took the Solar System to Form, Study Claims
Compared to the rest of the universe, our solar system is just a teenager — it formed 4.5 billion years ago compared to the universe's 13.8 billion years . But more shocking is how quickly our entire star system took shape in the first place.
According to research published Friday in the venerable journal Science based on a new analysis of ancient meteorites, it took less than 200,000 years for the whole Sun and solar system to form. By comparison, scientists believe the human species has been walking the Earth for 100,000 years longer than that — a comparison that shows just how quickly our star and planets came together.
Happening on Twitter
In case you didn't think our Solar System was amazing, try Europa, a moon of Jupiter that seems to glow in the dark! https://t.co/FjPjvdPzBE BillNye (from Los Angeles, CA) Fri Nov 13 20:28:11 +0000 2020
Today, Voyager 1 is the most distant spacecraft from Earth, more than 14 billion miles away, and continues its jour… https://t.co/wR19yFydFs NASA_Johnson (from Houston, TX) Thu Nov 12 14:00:01 +0000 2020
This week, there will be some not so familiar sights in the sky: several planets that make up our solar system will… https://t.co/D0IfCPMoGo CNN Fri Nov 13 21:12:46 +0000 2020
Astronomers find the biggest black hole ever measured. With a mass of 40 billion suns, the goliath black hole packs… https://t.co/me7cAQzZKk AstronomyMag (from Our tiny corner of the cosmos) Thu Nov 12 14:30:21 +0000 2020
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