Prof. Zhao Yinghe from the Yunnan Observatories of the Chinese Academy of Sciences, along with collaborators, have conducted a study examining the correlation between the [C II] 158 micron emission and the CO(1−0) line. Their findings were published in The Astrophysical Journal.

Molecular gas (H₂) plays a critical role in star formation, a key factor in the evolution of galaxies. Therefore, measuring the gas content in galaxies is crucial. However, the traditional tracer for H₂ mass, the CO(1−0) line, is challenging to detect in the early universe due to various factors, including lower metal content.

As a result, there is a pressing need for alternative H₂ tracers, especially as more galaxies at high redshifts are being discovered.

The Last Question is a short story by Isaac Asimov which details the evolution of humanity and our journey to answering the one question that will determine the fate of the universe.

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Assets:
Entropy: https://fs.blog/2018/11/entropy/ Inte… ship by Igor Sobolevsky: https://www.artstation.com/artwork/r1… Vessel by Paul Chadeisson: https://www.artstation.com/artwork/mQ… artist: / is_somebody_able_to_remove_the_little_atomic.

Music: uncharted worlds — mass effect: • mass effect — uncharted worlds extend…

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Intro/Outro Music: Home — Resonance.

Six years ago, NASA’s Dawn mission communicated with Earth for the last time, ending its exploration of Ceres and Vesta, the two largest bodies in the asteroid belt. Since then, Ceres —a water-rich dwarf planet showing signs of geological activity— has been at the center of intense debates about its origin and evolution.

Now, a study led by IAA-CSIC, using Dawn data and an innovative methodology, has identified 11 new regions suggesting the existence of an internal reservoir of organic materials in the dwarf planet. The results, published in The Planetary Science Journal, provide critical insights into the potential nature of this celestial body.

In 2017, the Dawn spacecraft detected organic compounds near the Ernutet crater in Ceres’ northern hemisphere, sparking discussions about their origin. One leading hypothesis proposed an exogenous origin, suggesting these materials were delivered by recent impacts of organic-rich comets or asteroids.

Indian astronomers have performed a multiwavelength study of a gamma-ray emitting compact symmetric object known as DA 362. Results of the study, presented in a research paper published December 17 on the pre-print server arXiv, yield more insights into the nature of this enigmatic object.

Compact symmetric objects (CSOs) are young jetted active galactic nuclei (AGN) with an overall projected size below 3,300 light years. Although CSOs are still not well investigated, observations found that they showcase symmetric radio morphologies and are likely to be in the early stages of their evolution with kinematic ages smaller than a few thousand years. To date, only four CSOs have been found to emit gamma-rays.

The newest gamma-ray emitting CSO is DA 362, also known as B2 1413+34. It was initially classified as a blazar candidate of uncertain type, associated with a gamma-ray source designated 4FGL J1416.0+3443.