Researchers have identified a novel, straightforward chemical reaction involving benzene and hydrogen cyanide (HCN) that efficiently explains the formation of nucleobases, the fundamental building blocks of DNA and RNA.
#PlanetaryAtmosphericChemistry #PrebioticChemistry #Astrobiology #sflorg
https://www.sflorg.com/2026/06/chm06152602.html
Life's Origins: A Novel Chemical Pathway

Discover a simplified chemical pathway using benzene and hydrogen cyanide that explains how the building blocks of DNA and RNA formed on early Earth.

Astronomers have identified a substantial aquatic exoplanet situated within the circumstellar habitable zone of its host star. This region, frequently referred to as the Goldilocks zone, maintains the precise thermal conditions necessary to support liquid water on a planetary surface. The discovery provides critical data for atmospheric characterization studies and advances our understanding of planetary composition and the potential for life beyond our solar system. Such findings are pivotal in refining current models of planetary evolution and habitability across the galaxy.

#space #astronomy #astrobiology

@[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @science @space @[email protected] #space #science #nasa #astronomy
Aliens might exist, but there are three reasons why they're not visiting us

The United States government's recent release of hundreds of previously classified unidentified anomalous phenomena (UAPs) cases spanning the 1940s to the present, along with the new Steven Spielberg movie, "Disclosure Day," about extraterrestrial life, has fueled the idea that aliens are visiting Earth.

Phys.org

Science and fiction have their say on UFO ‘Disclosure Day’
"Disclosure Day" is nigh!

We're not talking about end times for UFO believers, but about this week's debut of Steven Spielberg's latest movie about space aliens.

"Disclosure Day" is something of a second coming for the c
https://cosmiclog.com/2026/06/12/science-and-fiction-have-their-say-on-ufo-disclosure-day/
#FictionScienceClub #Aliens #Astrobiology #Books #CLUBClub #FictionScience #Movies #ScienceFiction #Space #UFOs

Science and fiction have their say on UFO ‘Disclosure Day’

“Disclosure Day” is nigh! We’re not talking about end times for UFO believers, but about this week’s debut of Steven Spielberg’s latest movie about space aliens. &#822…

Cosmic Log

Quit praying for a giant meteor to fix our problems here on Earth. It's much better to pray for comet Bernadelli-Bernstein: the Solar System's largest comet ever

https://bigthink.com/starts-with-a-bang/largest-comet-earth/?utm_source=fark&utm_medium=website&utm_content=link&utm_campaign=fark&ICID=ref_fark

#stem #science #space #astrophysics #astrobiology #creepy

Move over, giant meteor. Here's what the largest comet would do to Earth

Oort cloud object Bernardinelli–Bernstein has the largest known cometary nucleus: 119 km wide. An impact with Earth would be catastrophic.

Big Think

10-Jun-2026
How our #cells evolved: #Genome analysis rewrites the origin of the first #eukaryotes
Using the MareNostrum supercomputer, researchers at BSC-CNS and IRB Barcelona discover that the first complex cells emerged from a gradual, millions-year alliance involving giant #viruses and multiple bacterial groups

https://www.eurekalert.org/news-releases/1131233

#science #evolution #astrobiology #complexity #symbiosis

How our cells evolved: Genome analysis rewrites the origin of the first eukaryotes

Published in Nature, the team led by Dr. Toni Gabaldón used the MareNostrum supercomputer to reconstruct the genetic origin of the last common ancestor of all eukaryotes—the cellular lineage to which animals, plants, fungi, and protists belong. The study challenges the idea that cellular complexity emerged from a single evolutionary encounter, pointing instead to a gradual process of interactions among different microorganisms that lasted for millions of years. The findings, which culminate more than five years of computational work, identify contributions from several bacteria in addition to the one that gave rise to mitochondria, and suggest that giant viruses may have acted as vehicles for gene transfer.

EurekAlert!
Deep sea an untapped ‘evolutionary engine’ says new study

The deep sea is a unique ‘evolutionary engine’ with one of the richest and most unexplored sources of genetic diversity on Earth, according to a major new study that has assessed its potential to transform biotechnology and DNA sequencing technologies.

EurekAlert!

Every time scientists talk about life beyond Earth, audience questions range from profound to unexpected. Here are honest, up-to-date answer to 10 of the biggest ones

https://bigthink.com/starts-with-a-bang/big-questions-life-beyond-earth/?utm_source=fark&utm_medium=website&utm_content=link&utm_campaign=fark&ICID=ref_fark

#stem #science #space #astronomy #astrobiology #interesting

JWST reveals dawn-dusk atmosphere split on ultra-hot exoplanet WASP-121 b

Astronomers have revealed distinct differences in atmospheric conditions between the morning and evening transition zones of the ultra-hot gas planet WASP-121 b, which separate day from night, commonly called terminators. This achievement was only possible due to the unmatched sensitivity of the James Webb Space Telescope (JWST).

Phys.org

When a scientific controversy or breakthrough dominates headlines, press officers and journalists often quote a handful of experts.

These views may be insightful, but they rarely tell us what the wider scientific community thinks.

And yet public discussions frequently rely on phrases such as “the science says” or “scientists believe”, as if there were a clear and measurable answer.

In reality, systematic evidence about scientific opinion is often missing.

Attempts to find evidence for #life beyond Earth provide fascinating case studies into diversity of scientific opinion.

#science #astrobiology
https://theconversation.com/could-it-be-aliens-from-cheyava-falls-on-mars-to-exoplanet-k2-18b-heres-what-scientists-really-think-284393

Could it be aliens? From Cheyava Falls on Mars to exoplanet K2-18b – here’s what scientists really think

Only 6.6% of surveyed astrobiologists agreed that scientists had probably found extraterrestrial life on exoplanet K2-18b.

The Conversation