Vincent Chevrier of the University of Arkansas will give a virtual seminar titled "The search for habitable conditions in the solar system: The case for Mars and Titan" on Zoom from 3:30-4:30 p.m. Friday, March 12. The talk is free and open to the public.
Chevrier is an assistant research professor at the Arkansas Center for Space and Planetary Sciences. His primary research interest include surface processes on Mars and icy bodies.
Many things are taking place:
Extinct atom reveals the long-kept secrets of the solar system
Yet scientists have continued to make use of the extinct radionuclide in the form of the 92 Nb- 92 Zr chronometer, with which they can date events that took place in the early solar system some 4.57 billion years ago.
Use of the 92 Nb- 92 Zr chronometer has hitherto been limited by a lack of precise information regarding the amount of 92 Nb that was present at the birth of the solar system. This compromises its use for dating and determining the production of these radionuclides in stellar environments.
Radioactivity in Meteorites Sheds Light on Origin of Heaviest Elements in Our Solar System
Artist illustration of the formation of the solar system, capturing the moment where radioactive nuclei got incorporated into solids that would become meteorites. Credit: Bill Saxton / NSF / AUI / NRAO
A team of international researchers went back to the formation of the solar system 4.6 billion years ago to gain new insights into the cosmic origin of the heaviest elements on the periodic table.
Led by scientists who collaborate as part of the International Research Network for Nuclear Astrophysics (IReNA) and the Joint Institute for Nuclear Astrophysics – Center for the Evolution of the Elements (JINA-CEE), the study is published in the latest issue of the journal Science .
Wham Cam: Biggest volcano in the solar system? | wnep.com
Joe's thinking heat in this week's Wham Cam. He wants to know what is the biggest volcano in the solar system.
This may worth something:
Half of Earth's Nitrogen May Be Homegrown - Eos
Our solar system began as clouds of gas and dust in a swirling disk. At the center of the swirl, most material formed the Sun. Farther out, matter accumulated and formed the nuclei of the planets we know today. Volatile elements like nitrogen and carbon have traditionally been thought to have condensed in the outer reaches of the disk, beyond the orbit of today's Jupiter, and to have been carried to the inner planets by meteoroids.
In the past decade, scientists figured out that Earth's meteorites can be separated into two distinct categories : those that came from the inner part of the solar system and others that came from beyond Jupiter. Further analysis revealed that isotopes of nonvolatile elements (like molybdenum and tungsten) in these meteorites are also split between "inner" and "outer" categories.
Researchers use extinct atom to date events in the early solar system - SlashGear
"Farfarout" Indeed: Planetoid Confirmed to Be Solar System's Most Distant Known Object
This illustration imagines what the distant object nicknamed “Farfarout” might look like in the outer reaches of our Solar System. The most distant object yet discovered in our Solar System, Farfarout is 132 astronomical units from the Sun, which is 132 times farther from the Sun than Earth is. Estimated to be about 400 kilometers (250 miles) across, Farfarout is shown in the lower right, while the Sun appears in the upper left.
With the help of the international Gemini Observatory, a Program of NSF’s NOIRLab, and other ground-based telescopes, astronomers have confirmed that a faint object discovered in 2018 and nicknamed “Farfarout” is indeed the most distant object yet found in our Solar System. The object has just received its designation from the International Astronomical Union.
Copel switches on 3-MWp solar system in Brazil
March 3 (Renewables Now) - Brazilian power utility Copel (BVMF:CPLE6) has put into operations the first three units, totalling 3-MWp, of its Bandeirantes solar photovoltaic (PV) plant in the North region of Parana state.
Located in the municipality of Bandeirantes, this initial phase consists of 6,900 PV panels spread across an area of 10.35 hectares (25.57 acres), Parana's state government announced on Tuesday.
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In addition to these three arrays, the utility plans to start power generation on three more before the end of the year. Once all six PV farms are up and running, the facility will have a total installed capacity of 5.36 MWp, which is enough power to meet the demand of some 10,000 people.
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