One of our solar system's fundamental boundaries may have existed since the very beginning, a new study reports.
That demarcation, which lies just beyond Jupiter's orbit, is a dramatic one. The planets , asteroids and other objects sunward from the invisible line are lacking in carbon-containing organic compounds, whereas the stuff farther out is rich in organics.
Jupiter's hefty gravitational presence has been widely invoked to explain this "Great Divide." But computer simulations indicate that the gas giant was never big enough early in its history to keep the carbon-rich rocks and pebbles from spiraling into the inner solar system with the observed effectiveness, the new study found.
Other things to check out:
A giant wave of gas lurks near our solar system | Science News
HONOLULU — The Earth and sun are right next to a wavy rope of star-forming gas, but astronomers only just noticed it.
Many of the most well-known nearby stellar nurseries — places like the Orion Nebula — are actually strung along a continuous thread of gas that stretches roughly 9,000 light-years , researchers report. The thread resembles a sine wave, soaring above and below the disk of the galaxy by about 500 light-years, and at one point, coming within 1,000 light-years of our solar system.
'When the Earth Had Two Moons' Review: A Smashing Solar System - WSJ
Closest asteroid circling the sun is a new class of objects in the solar system: Astronomers-
A team of astronomers has discovered an asteroid that orbits the sun very closely. Most asteroids orbiting the Sun fall into the asteroid belt, which is located beyond Jupiter, at the outer edge of the solar system.
The newly-discovered asteroid, however, has an orbit between Mars and Venus. Dubbed 2020 AV2, the newly-discovered asteroid has an orbit between Mercury and Venus. It has a diameter between one to three kilometers.
Astronomers have described the space rock as an entirely "new class of solar system objects." What with it being so close to the Sun, it has the smallest axis and aphelion of any objects known so far, they added.
This may worth something:
Venus and it's hellish landscape could be more like Earth than you think
A new study co-authored by University of Hawaii planetary scientist David Trang not only shows that some lava flows on Venus could be a few years old ― but that the planet could be volcanically active.
If it is, it would be the only planet in the solar system (other than Earth) with recent eruptions.
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It's the second planet from the Sun, and it's really, really hot ― 870 degrees Fahrenheit hot. In fact, scientists, say, it's the hottest planet in the solar system because of its heat-trapping atmosphere.
Ancient stardust leads to clearer picture of solar system | Mirage News
A region of star births nestled within the ingredients needed for star formation: clouds of interstellar gas and space dust. The nebula here resides 20,000 light-years away in the constellation Carina. It contains a central cluster of huge, hot stars. Image courtesy of Hubble Heritage Team/NASA/ESA
Stardust grains are the oldest datable solid samples available for study in the laboratory and provide invaluable insight into the presolar chronology of our galaxy.
SpaceX Scours the Solar System in Search of Profit
SpaceX, the private aerospace company founded by Elon Musk, has managed to upend the space launch industry by offering pioneering launch vehicle technology at a lower cost than established industry rivals.
The company, under the leadership of Musk, has done what many thought impossible, including landing booster rockets for reuse. But SpaceX is now struggling to find a way to justify its bulging valuation.
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Musk is no stranger to disruptive enterprise, as his leadership of Tesla Inc. (NASDAQ:TSLA) can attest. Yet, no amount of disruptive thinking can overcome the iron laws of economics.
Wacoal America adds near 1-MW rooftop solar system to its headquarters via Dynamic Energy
The 965 kW rooftop system generates solar energy for Wacoal America’s headquarters and distribution center in Lyndhurst, NJ.
Investing in this rooftop solar facility underscores Wacoal America’s commitment to technical innovation and environmental stewardship. The project is yet another example of the state of New Jersey’s leadership in the global transition to a clean electric grid.
In light of New Jersey’s imminent transition to a new solar incentive regime, Dynamic Energy mobilized an accelerated construction schedule to ensure Wacoal America secured the maximum benefits possible for their project, successfully executing contracting, turnkey development, installation, and commercial operation in under 12 months.
Happening on Twitter
Jupiter may not have caused our solar System's 'Great Divide' after all https://t.co/GlpNESsch1 https://t.co/WyfEe8ofe8 SPACEdotcom (from NYC) Tue Jan 14 14:57:03 +0000 2020
Jupiter is not really flinging asteroids at Earth. If you read the full story and underlying research paper it's ba… https://t.co/JlMVBcedOC eugenegu (from eugene@coolquit.com) Fri Jan 10 02:10:16 +0000 2020
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