These images highlight the diversity of shapes and sizes that these disks can take and show the outer reaches of star systems in their formative years.
A circumstellar disk around star HD 129590 selected from the larger sample of 26 disks obtained with the Gemini South telescope in Chile using the Gemini Planet Imager (GPI).
Researchers from the University of California Berkeley and other organizations including the SETI Institute released the largest collection of images showing debris discs around young stars, providing a glimpse of what our solar system might have looked like when its planets were forming. The images were part of data collected over four years by the Gemini Planet Imager (GPI), located on the Gemini South Telescope in Chile.
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Solar panels get cheaper - HoustonChronicle.com
Solar system costs are falling across in the United States, primarily driven by lower prices for solar panels, according to the research firm Wood Mackenzie.
The price of residential solar systems made with silicon crystal panels is expected to decline 17 percent from 2020 to 2025, according to Wood Mackenzie. The utility scale version is expected to decrease in price by 20 percent during the same period.
As the price of solar panels fall, Wood Mackenzie predicts developers will turn their attention to lowering other costs. That includes the so-called "soft cost" of marketing to acquire customers in the residential market which has been a huge barrier to lowering overall costs.
NASA simulates sunsets throughout the solar system - UPI.com
June 23 (UPI) -- Tired of those boring Earth sunsets? NASA has the antidote: a new video simulation featuring sunsets from across the solar system.
The new online animation visualizes a sunset from the perspective of a view on the surfaces of Venus, Mars, Uranus and Titan. For comparison, the video also features a typical sunset on Earth. Advertisement
Sunsets happen as a planet rotates away from the sun, causing the star to dip below the horizon. As the sunlight's photons interact with the molecules in a planet's atmosphere, some wavelengths are reflected or absorbed, while others pass through, giving each sunset a unique color palette.
Antares is a supergiant star that would fill the Solar System beyond Mars, but its atmosphere is
The photosphere, the layer of a star that emits visible light (and hence is the best working definition of “surface” that we can get when it comes to giant balls of plasma ) is about 700 times wider that the sun. If placed inside our own solar system, the photosphere of Antares would engulf the planets Mercury, Venus, Earth, and even Mars, stretching to roughly the orbit of the asteroid belt.
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Using combined high-resolution from the ALMA (Atacama Large Millimeter Array) and the Karl G. Jansky Very Large Array (VLA), astronomers determined that the atmosphere of that bloated star stretches far bigger than it reasonable ought to.
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Newborn star's X-rays shine light on our solar system's early days | Space
In a new study, astronomers report the first detection of X-rays from a sun-like star in the earliest phase of its evolution. This discovery may help scientists explore the earliest days of our solar system and rewrite cosmic history, study team members said.
In 2017, NASA's Chandra X-ray Observatory detected an X-ray flare coming from the very young star HOPS 383, which is the same type of star as our sun. The star, which is known as a "protostar" because it's in the earliest phase of star evolution, lies about 1,400 light-years away from Earth and, once it has matured, will grow to have about half the mass of our sun.
Rogue's gallery of dusty star systems reveals exoplanet nurseries | Berkeley News
This figure shows the dust rings around young stars captured by the Gemini Planet Imager Exoplanet Survey, or GPIES. The rings show a diversity of shapes and sizes, made more extreme by the different projections of the rings on the sky. (UC Berkeley image by Thomas Esposito)
Astronomers this month released the largest collection of sharp, detailed images of debris disks around young stars, showcasing the great variety of shapes and sizes of stellar systems during their prime planet-forming years. Surprisingly, nearly all showed evidence of planets.
Comet NEOWISE tracker: Comet is 'looking healthy' as it travels through solar system |
However, both comets began to crumble and break apart as they voyaged past the planets of the solar system.
But the latest comet - Comet NEOWISE - looks a safe bet to make its way past Earth as it voyages through the solar system.
Following observations from Solar and Heliospheric Observatory's (SOHO) telescope, astronomers believe it is looking healthy and will be near to Earth on July 3.
Website Space Weather said: "Comet NEOWISE (C/2020 F3) is plunging toward the sun for a close encounter near the orbit of Mercury on July 3rd.
Astronomy shock: Infant star X-ray helps NASA understand solar system's formation | Science
By studying the young star's X-ray flare, astronomers are able to learn more about the Sun's, and indeed the solar system's, evolution.
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Astronomers already knew that young stars emit more X-ray flares than older ones, but it was still unclear when stars begin emitting these flares.
However, this research "resets the timeline for when astronomers think sun-like stars start blasting X-rays into space," according to the statement.
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