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James Webb Space Telescope reveals new surprises on galaxy organic molecules near black holes

The James Webb Space Telescope has discovered that polycyclic aromatic hydrocarbons (PAHs) can survive in the vicinity of supermassive black holes at the centers of active galaxies. This challenges previous studies that predicted their destruction, and reveals new insights into galaxy evolution.

SourceUniversity of Oxford·JournalAstronomy and Astrophysics·TypeData/statistical analysis·DateOct 11, 2022

ExoClock counts down Ariel exoplanet targets

The ExoClock project, supported by European Space Agency's Ariel mission, has presented 450 candidate exoplanet target orbits and received contributions from 217 professional and amateur astronomers. Small telescopes can successfully observe most targets, highlighting the value of amateur community involvement in space research.

Study: Astronomers risk misinterpreting planetary signals in James Webb data

A new MIT study suggests that current opacity models used by astronomers may not be accurate enough to interpret the precise light-based signals from the James Webb Space Telescope. The researchers predict that properties of planetary atmospheres, such as temperature and elemental composition, could be off by an order of magnitude if e...

SourceMassachusetts Institute of Technology·JournalNature Astronomy·DateSep 15, 2022

Discovery of the oldest visible planetary nebula hosted by a 500 million year old galactic cluster – a rare beauty with a hot blue heart

Researchers have found the oldest visible planetary nebula, a rare celestial jewel, hosted by a 500 million-year-old galactic cluster. The team determined that the PN has a 'kinematic age' of 70,000 years and estimates its progenitor star's mass and residual core's mass.

SourceThe University of Hong Kong·JournalThe Astrophysical Journal Letters·TypeObservational study·DateAug 29, 2022

An extrasolar world covered in water?

Researchers from the University of Montreal have discovered an exoplanet that could be an 'ocean planet,' completely covered by a thick layer of water. The exoplanet, TOI-1452 b, has a radius and mass similar to Earth but is believed to be rocky with a possible abundance of water.

SourceUniversity of Montreal·JournalThe Astronomical Journal·DateAug 24, 2022

How do galaxies evolve? A UMass Amherst undergrad may have provided the missing link

A UMass Amherst undergraduate student's work has provided key insight into how galaxies evolve, linking supermassive black hole growth to star formation. The study uses mid-infrared spectra to quantify the connection between these phenomena, paving the way for the James Webb Space Telescope to investigate galaxy evolution.

SourceUniversity of Massachusetts Amherst·JournalThe Astrophysical Journal·DateJul 21, 2022

Why Jupiter doesn’t have rings like Saturn

New research by UC Riverside astrophysicist Stephen Kane suggests that Jupiter's four main moons would quickly destroy any large ring formations. This prevents Jupiter from having substantial rings, unlike Saturn. The study provides evidence of catastrophic events in the past through the analysis of ring compositions and shapes.

SourceUniversity of California - Riverside·JournalPlanetary Science·TypeComputational simulation/modeling·DateJul 21, 2022

Hubble Space Telescope captures largest near-infrared image to find universe’s rarest galaxies

The Hubble Space Telescope has released the largest near-infrared image ever taken, allowing researchers to map star-forming regions and understand how the earliest galaxies originated. This high-resolution survey will enable the identification of rare objects such as massive galaxies, highly active black holes, and colliding galaxies.

SourceUniversity of Toronto·JournalThe Astrophysical Journal·TypeImaging analysis·DateJun 6, 2022

Mysteries of gas giants known as ‘hot Jupiters’ unravelled

Researchers have uncovered significant trends in hot Jupiters' atmospheres, including dramatic temperature swings and the presence of metallic elements. The study's findings provide valuable insights into the evolution of our solar system and offer a better understanding of exoplanet populations.

SourceUniversity College London·JournalThe Astrophysical Journal Supplement Series·TypeComputational simulation/modeling·DateApr 25, 2022

Pushing the boundaries of space exploration with X-ray polarimetry

The Imaging X-ray Polarimetry Explorer (IXPE) mission enables new measurements of cosmic X-ray sources, such as pulsars, black holes, and neutron stars. With its state-of-the-art telescopes and detectors, IXPE will provide high-quality polarization data of various sources, including supernova remnants, active galaxies, and blazars.

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Astronomical Telescopes Instruments and Systems·DateApr 22, 2022

Extraordinary black hole found in neighboring galaxy

Astronomers have found an intermediate-mass black hole in the Andromeda galaxy, one of only a few confirmed objects of its kind. The discovery sheds light on the formation of galaxies and provides insights into the population of black holes at the centers of low-mass galaxies.

SourceUniversity of Utah·JournalThe Astrophysical Journal·TypeComputational simulation/modeling·DateJan 24, 2022

CHEOPS reveals a rugby ball-shaped exoplanet

The CHEOPS space telescope has detected the deformation of exoplanet WASP-103b, a rugby ball-shaped world with extreme tides. The planet's Love number indicates similarities with Jupiter's internal structure, suggesting it may be highly inflated due to heating from its star.

SourceUniversity of Bern·JournalAstronomy and Astrophysics·TypeObservational study·DateJan 11, 2022

Eccentric exoplanet discovered

A sub-Neptune exoplanet named TOI-2257 b has been found to have an eccentric orbit around its host star, making it a candidate for further study. The planet's distance from the star allows for liquid water and potentially life-supporting conditions.

SourceUniversity of Bern·JournalAstronomy and Astrophysics·DateJan 7, 2022

Tread lightly: ‘Eggshell planets’ possible around other stars

Researchers from Washington University in St. Louis have discovered a new type of exoplanet known as 'eggshell planets,' which are likely to have little topography and no plate tectonics. These planets may resemble the lowlands on Venus, with vast expanses of lava but little high-standing terrain.

SourceWashington University in St. Louis·JournalJournal of Geophysical Research Planets·TypeComputational simulation/modeling·DateNov 10, 2021

Gamma ray discovery could advance understanding of UFOs’ role in the evolution of galaxies

Researchers detected gamma rays from ultra-fast outflows (UFOs) launched by supermassive black holes, providing a basis for understanding their role in regulating black hole growth and galaxy evolution. UFOs create shock waves that accelerate charged particles, influencing the surrounding matter and accelerating star formation.

SourceClemson University·JournalThe Astrophysical Journal·DateNov 10, 2021

Cloud-spotting on a distant exoplanet

Clouds have been detected on the distant exoplanet WASP-127b, and their altitude has been measured for the first time. The observations reveal that water vapor is present at lower levels but screened by clouds opaque to visible light, while sodium is found in an unexpected place.

Astronomers spot the same supernova three times — and predict a fourth sighting in 16 years

Researchers used gravitational lensing to observe the same exploding star in three different locations and predict a fourth image will appear in the sky by 2037. This study provides an opportunity to explore the expansion of our universe and sheds light on cosmological riddles, including the expansion rate.

SourceUniversity of Copenhagen - Faculty of Science·JournalNature·TypeObservational study·DateSep 13, 2021