Scientists have identified solar wind flowing from funnel-shaped magnetic fields in the Sun's corona, originating in coronal funnels with a speed of about 10 km/s. This discovery improves our understanding of the solar wind's magnetic nature and source region.
Scientists have long puzzled over the origin of chondrules, glassy particles found in meteorites that formed in the solar nebula. New calculations suggest that spiral arms in the disk surrounding Jupiter may have generated shock waves that melted dust clumps to form these particles.
Astronomers have discovered the smallest extra-solar planet to date, orbiting a pulsar in a planetary system resembling our own inner solar system. The new planet is estimated to be one-fifth the mass of Pluto and has an orbit approximately six times larger than its third planet.
A Chinese-American team of scientists has discovered a rare isotope, sulfur-36, associated with sodalite in a meteorite. The finding provides strong evidence for the past presence of chlorine-36 in the early solar system, which was likely formed in a supernova explosion.
Researchers at Georgia Tech have developed a new approach to creating lightweight organic solar cells using pentacene, converting sunlight into electricity with high efficiency. The cells' flexibility and minimal weight make them suitable for powering various devices, from RFID tags to electronic devices.
Scientists at NCAR's High Altitude Observatory developed a new model that accounts for the evolution of sunspots caused by plasma circulation. The forecast predicts solar storms and cycle 24 starting around 2007-2008, with potential implications for understanding stars similar to the Sun.
Researchers have discovered that carbon isotopic compositions in IDPs are different from those on Earth and in other parts of the Solar System, indicating it was formed in molecular clouds before the formation of the Solar System. The findings help understand the Solar System's formation and the origin of organic matter on Earth.
The SORCE satellite has tracked exceptionally high levels of solar activity, including the third most powerful solar flare ever observed in X-rays. This comprehensive dataset will help scientists better understand the mechanisms of solar spectral-irradiance variability and their possible climatic impacts.
Researchers predict a decrease in solar activity's impact on global warming over the next 100 years, with potential returns to current levels by 2200. The study suggests that solar variability will not amplify climate change, but rather subdue its effects.
The new AO76 system, developed by the National Optical Astronomy Observatory in New Mexico, produces sharper images under worse seeing conditions than the previous AO24 system. This allows existing solar telescopes to produce higher resolution images and greatly improve their scientific output.
A NASA study has found a significant increase in solar radiation over the past 24 years, which could contribute to global climate change. The trend is comparable to one previously reported by the Intergovernmental Panel on Climate Change and may have been present throughout the 20th century.
Researchers create alloy of indium gallium nitride that corresponds to the entire solar spectrum, allowing for more efficient solar cells. The alloy's defect-tolerant properties hold promise for improved performance in solar cells.
The Upper Atmosphere Research Satellite (UARS) has recorded the Sun's influence on ozone and atmospheric gases over an 11-year solar cycle. The complete dataset provides key measurements toward understanding natural and man-made influences on ozone.
A new study suggests that dust in the Kuiper Belt produces anomalous cosmic rays, which have been puzzling scientists. The research provides a possible explanation for the origin of these high-energy particles and offers insights into the composition and interactions of the solar system.
Researchers at the University of Houston are developing methods to manufacture huge solar cell arrays on the moon using materials from lunar soil. The goal is to generate enough electricity to supply a lunar base or colonies, as well as beam electricity back to Earth for use in local grids.
The NASA Living With a Star program aims to understand the dynamics of the Earth-Sun system. The Stanford-led SDO mission will study the Sun's magnetic fields, creating 3D images of solar magnetic regions and surface fields, to predict destructive flares and solar storms.
Researchers have developed nanoparticles that can absorb all visible light but reject invisible light, increasing the efficiency of solar cells. This technology has the potential to make solar energy dirt cheap to produce and competitive with fossil fuels.
Researchers discovered that fluctuations in solar wind magnetic energy density are more likely to occur in extreme events, similar to stock market indices. The solar wind's self-similar pattern at various time scales allows for the application of knowledge from one field to understand the other.
Researchers at UC Berkeley have developed a technology for creating cheap plastic solar cells that can be painted onto any surface, enabling applications such as powering wearables or small devices. The efficiency of the solar cells is currently low, but the team believes it has the potential to improve with further development.
Researchers analyzed NOAA data on solar radio bursts to determine their impact on cellular communications. They found that bursts of 1,000 SFU occur on 10-20 days per year, causing disruptions every 40-80 days or several times a year.
Scientists from Japan, US, and UK collaborate to build instruments for Solar-B, a satellite studying the Sun's magnetic field and its impact on Earth's climate. The mission aims to understand how magnetic fields interact with the Sun's atmosphere and release energy in solar flares and coronal mass ejections.
Scientists at NASA's Goddard Space Flight Center presented new findings on lower dust absorption of sunlight, Arctic stratospheric temperature control and the impact of a large solar proton event on the atmosphere. The studies aim to improve climate modeling and understanding of climate change.
Researchers have directly observed magnetic field line shrinkage or reconnection outflow during solar flares, resolving a long-standing mystery. The discovery sheds light on the behavior of magnetic fields in solar flares and their impact on space weather.
Loren Acton, a former astronaut and solar physicist, has won the prestigious George Ellery Hale Prize for his outstanding contributions to solar astronomy. Acton's research focuses on understanding the Sun's behavior, shapes, colors, and motions.
The NEAR Shoemaker mission suggests asteroid Eros is a primordial relic from the solar system's formation, with an elemental composition similar to chondritic meteorites. Studying Eros could help scientists understand how rocky planets evolved.
Scientists have discovered a new mechanism for coronal mass ejections, which are large-scale eruptions on the Sun that can cause geomagnetic storms and disrupt power generation. Shock waves generated by solar flares in other regions of the sun can cause these eruptions, contrary to previous thought.
The solar system's ultimate fate is predicted to be a collapse of the sun into a white dwarf, incinerating the Earth and inner planets in the process. However, a close encounter with a passing star may rescue life by hurling the Earth out of the solar system.
A new study found that a sharp decrease in solar wind density caused Earth's magnetosphere to balloon to more than 100 times its normal volume, reaching nearly to the moon. The event, dubbed "The Day the Solar Wind Ran Out of Gas," was rare and only seen a few times since satellites began measuring solar wind 35 years ago.
Researchers at the University of Washington have developed a new propulsion system called M2P2 that could potentially increase spacecraft speeds by up to 10 times, surpassing Voyager I's distance from Earth. The system uses a plasma chamber and electromagnetic field to harness the solar wind for propulsion.
The Ninth Sede Boker Symposium on Solar Electricity Production will focus on ground-breaking work in solar power generation from around the world. Experts will share knowledge and problem-solving techniques with Arab and Israeli users of a large photovoltaic system designed for agricultural communities.
A new study reveals that the detailed spectral behavior of solar flares falls into just two categories, suggesting a common mechanism for particle acceleration. The finding could provide insight into how particles are accelerated to high energies in solar flares.
A worldwide study of the Sun's quiet period reveals insights into solar activity and its effects on Earth. The research, published in the Journal of Geophysical Research, explores the Sun's large-scale, stable structures that dominate the solar corona at solar minimum.
An international team of scientists identified regions on the Sun where the high speed solar wind originates using the Solar Ultraviolet Measurements of Emitted Radiation spectrometer on SOHO. The research will lead to a better understanding of the solar wind's effect on Earth's space environment.
A solar flare on July 9, 1996, generated a massive seismic wave that resembles those created by terrestrial earthquakes. The seismic wave contained about 40,000 times the energy released in the San Francisco earthquake of 1906.
The UNC-CH physics and astronomy department has launched a new program called SOLAR, which allows North Carolina public school teachers and students to use and remotely control the Morehead Observatory telescope. The program offers students access to real scientific data and the opportunity to capture their own images of the universe.
Scientists Harry van Loon and Karin Labitzke found a mirror image of the solar-stratosphere correlation in the Southern Hemisphere, spanning three solar cycles. The analysis suggests that the sun's 11-year solar cycle drives periodic changes in temperatures and pressure heights of the lower stratosphere from pole to pole.
Researchers found that defects in silicon wafers, not grain boundaries, cause low efficiency; optimizing processes can remove contaminants and improve performance. The goal is to achieve 18% efficiency on the production line, a significant step towards making solar cells more profitable.
New data from the University of Delaware reveals that solar wind is not a simple, wave-like entity but rather a dynamic phenomenon with complex fluctuations. Understanding these fluctuations may enable prediction of cosmic disturbances and provide warnings for astronauts and utility companies.
Researchers have developed methods to improve efficiency and stability of amorphous silicon solar cells, enabling mass production. Stacking solar cells on panels has increased conversion of sunlight to power, with efficiencies reaching over 14 percent.
Researchers used SOHO spacecraft to track solar dynamo's position and conditions. They found turbulence and shear flows indicative of dynamo presence at a layer 38,000 miles thick.