Archival Chandra image of ACT-CL J0329. Credit: Sikhosana et al., 2024.A global team of astronomers conducted radio observations of the large galaxy cluster ACT-CL J0329.2-2330, uncovering a new radio halo within the cluster. The discovery was detailed in a research paper published on April 5 on the pre-print server arXiv.In fact, radio halos are...
In the realm of galaxies, our minds often conjure images of luminous spiral formations teeming with stars and cosmic gases. However, a distinct category known as low-surface-brightness galaxies challenges this conventional perception. These galaxies, characterized by sparse stars and unconventional appearances, typically harbor more dark matter and predominantly consist of gas, with few discernible...
Sagittarius A*, the black hole at the center of the Milky Way galaxyEHT Collaboration/CCA4.0Examining the stars in the night sky, it's unlikely you'd distinguish one as foreign. However, astronomers have identified a star near the supermassive black hole at the Milky Way's center, suggesting it originated in a smaller galaxy consumed by ours.Among...
Credit: UnsplashALMA, a big telescope, looked at an old star and saw it really well. The star has a ring of gas around it, and some of the gas is moving away into space. Using this powerful telescope in the future will help us understand not only how stars end but also how planets...
Planet Venus. Credit: Unsplash.For the first time, oxygen atoms have been identified in the dayside atmosphere of Venus, free from being part of larger molecules. This revelation not only marks a significant advancement in our understanding of Venus but also paves the way for future missions to the enigmatic planet.Revised TextFor the first time...
Credit: Unsplush.A recent analysis of images captured by the Hubble Space Telescope (HST) has unveiled an intriguing find within the Sombrero Galaxy. Conducted by Elio Quiroga Rodriguez from the Mid Atlantic University in Spain, this discovery sheds light on a previously unnoticed galaxy that harbors an active galactic nucleus (AGN). The findings were detailed...
The configuration of 10 distant galaxies is depicted in this deep galaxy field from Webb's NIRCam (Near-Infrared Camera) as eight white circles arranged in a diagonal, thread-like line. (Two of the circles have many galaxies in them.) This 3 million light-year-long filament is held in place by a quasar, a galaxy with an active...
Artist impression of the Euclid mission in space. The spacecraft is white and gold and consists of three main elements: a flat sunshield, a large cylinder where the light from space will enter, and a 'boxy' bottom containing the instruments. The spacecraft is shown half in the shadow, because the sunshield will always be...
This artist’s impression depicts a star being torn apart by an intermediate-mass black hole, surrounded by an accretion disk. Image credit: Hubble / NASA / ESA / M. Kornmesser.According to space experts, there is a possibility of the existence of intermediate-mass black holes. These are black holes that can consume some of the stray...
This system consists of a pair of galaxies, dubbed IC 694 and NGC 3690, which made a close pass some 700 million years ago. As a result of this interaction, the system underwent a fierce burst of star formation. In the last fifteen years or so six supernovae have popped off in the outer...
