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Search results for “Astronomy”

1,000+ results for "Astronomy"

Planets form through domino effect

A recent study using radio astronomy observations has revealed that planets help form the next by concentrating dust grains into a narrow region at their orbits. This sequential formation process can explain how our Solar System formed, with each planet triggering the next like a line of falling dominos.

SourceNational Institutes of Natural Sciences·JournalThe Astrophysical Journal Letters·TypeObservational study·DateDec 12, 2024

Astronomers find the nearest massive black hole, a missing link in massive black hole formation

Researchers have found the nearest massive black hole to Earth, located at the center of Omega Centauri, a galaxy that was swallowed by the Milky Way. The discovery provides insight into the formation history of galaxies and confirms long-held suspicions about the existence of intermediate-mass black holes.

SourceMax Planck Institute for Astronomy·JournalNature·TypeObservational study·DateJul 10, 2024

The carbon emissions of academic astronomy

A recent study found that air travel to professional conferences contributes substantially to academia's carbon emissions, with an estimated 42,500 tCO2e released in 2019. To mitigate this issue, researchers suggest prioritizing venue locations near most participants and exploring virtual meeting solutions.

SourcePNAS Nexus·JournalPNAS Nexus·DateApr 30, 2024

Lighting up the future

Researchers at the Organic Semiconductor Centre have proposed a new approach to designing efficient light-emitting materials. The guidelines developed by the team will help OLED researchers develop materials that maintain high efficiency at high brightness, enabling brighter, more colourful displays and lighting.

SourceUniversity of St. Andrews·JournalNature·DateMar 27, 2024

Migration solves exoplanet puzzle

Research suggests that planetary migration is the key to explaining the mysterious gap in the size distribution of super-Earths. Simulations show that sub-Neptunes' evolution contributes to the observed radius valley, while rocky planets 'shrink' by losing their atmosphere.

SourceMax Planck Institute for Astronomy·JournalNature Astronomy·TypeComputational simulation/modeling·DateFeb 9, 2024

Is oxygen the cosmic key to alien technology?

A new study by Adam Frank and Amedeo Balbi suggests that high levels of atmospheric oxygen are necessary for the emergence of advanced technology on distant planets. They propose the concept of an 'oxygen bottleneck,' which implies that only planets with significant oxygen concentrations can develop technospheres, leaving detectable te...

SourceUniversity of Rochester·JournalNature Astronomy·DateJan 2, 2024

We achieved gender parity in astronomy in just five years

A national Australian astronomy centre achieved gender parity in just five years by implementing evidence-based strategies and creating a supportive culture. The Centre's program reached a tipping point when there were 40% women in leadership positions, resulting in accelerated student enrolments by women.

SourceARC Centre of Excellence for All Sky Astrophysics in 3D (ASTRO 3D)·JournalNature Astronomy·TypeExperimental study·DateNov 16, 2023

Finding explanation for Milky Way’s warp

Astronomers at Harvard University have discovered a tilted dark matter halo, explaining the Milky Way's warp and flare. The team used models to calculate star orbits within a warped, oblong dark matter halo, matching existing observations of a distorted galaxy.

SourceHarvard University·JournalNature Astronomy·TypeData/statistical analysis·DateOct 10, 2023

Study sheds new light on strange lava worlds

A new study reveals that magma oceans on rocky exoplanets can affect their size, evolutionary path, and mantle structure. The research found that these ocean's compressible nature can make lava-rich planets denser than solid planets of similar size.

SourceOhio State University·JournalThe Astrophysical Journal·TypeObservational study·DateSep 26, 2023

‘Thermometer’ molecule confirmed on exoplanet WASP-31b

Researchers have confirmed the presence of chromium hydride in the atmosphere of hot Jupiter exoplanet WASP-31b using high-resolution spectral observations. This detection opens the possibility of using chromium hydride as a 'thermometer' to determine the temperature and other characteristics of exoplanets.

SourceCornell University·JournalThe Astrophysical Journal Letters·DateAug 28, 2023

Astronomers discover striking evidence of ‘unusual’ stellar evolution

Researchers from Ohio State University found that some low-mass stars have unexpectedly strong surface magnetic fields, which could intensify their radiation for billions of years. This discovery challenges current models of stellar evolution and has important implications for the search for life on other planets.

SourceOhio State University·JournalThe Astrophysical Journal Letters·TypeObservational study·DateJul 17, 2023

Research uncovers details about the mysterious author of early astronomy textbooks

Researchers discovered previously unknown details about Margaret Bryan's background and family through a paper published in Notes and Records: The Royal Society Journal of the History of Science. Girolami found that Bryan was born around 1759, married William Bryan in 1783, and had two daughters, Ann Marian and Maria.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalNotes and Records the Royal Society Journal of the History of Science·TypeNews article·DateMar 22, 2023

Volcano-like rupture could have caused magnetar slowdown

A study published in Nature Astronomy suggests that a volcano-like rupture on the surface of a neutron star could have caused its sudden slowdown. The research used X-ray data from orbiting telescopes to analyze the magnetar's rotation and found evidence supporting this theory.

SourceRice University·JournalNature Astronomy·TypeData/statistical analysis·DateJan 27, 2023