[Spanish National Research Council (CSIC)] Sugars are key biomolecules in living organisms, as they form the backbone of DNA and RNA and play a fundamental role in metabolic processes. In […]
Green Bank Telescope
Posted inCallisto, Europa, Ganymede, Habitable Zones, Icy Worlds, Journal articles, Press Release, Water/Hycean Worlds & Oceanography
Radar Echoes From Europa Reveal Secrets Beneath the Ice
A team of scientists has used NASA’s Goldstone Solar System Radar and the U.S. National Science Foundation Green Bank Telescope (NSF GBT) to carry out the most extensive radar study […]
Posted inAstronomy & Telescopes, Citizen Science / Open Science, Intelligence & Language, SETI & Technosignatures, Status Report
Results Of Ten Tears Of UCLA SETI Searches With The Green Bank Telescope
We have been conducting a search for narrowband radio signals with the L-band receiver (1.15-1.73 GHz) of the 100 m diameter Green Bank Telescope (Margot et al., 2023). So far, […]
![Overview of the L1544 (LEFT panel) and IRAS 16293–2422 (RIGHT panel) regions as traced by the Herschel3 continuum maps at 350 𝜇m. The white contours correspond to [5,7,9,12,14]𝜎, where 𝜎 is 12 MJy sr−1 in L1544, and 1.1 MJy sr−1 in IRAS 16293–2422, respectively. The FoVs of the GBT observations are shown as blue circles – solid line for Ku-band and dashed line for X-band observations (see Sect. 3). Green diamonds identify the continuum (∼1.3 mm) peak position in L1544 (Ward-Thompson et al. 1999) and the position of the A/B, and E objects in IRAS 16293–2422 (Kahle et al. 2023). The size of the Herschel beam (25′′) is shown in the bottom left corner, while the scale bar is shown in the bottom right. -- astro-ph.GA](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/02/Carbon-chain-diversity.png?resize=1200%2C716&ssl=1)
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Status Report
Carbon Chain Diversity In L1544 And IRAS 16293-2422: An Astrochemical Pathfinder Study For The SKAO
Astrochemical observations have revealed a surprisingly high level of chemical complexity, including long carbon chains, in the earliest stages of Sun-like star formation.
Posted inAstronomy & Telescopes, Comets and Asteroids, Imaging & Spectroscopy, Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report
Breakthrough Listen Observations Of 3I/ATLAS With The Green Bank Telescope at 1-12 GHz
3I/ATLAS (also designated C/2025 N1 (ATLAS) and, formerly, A11pl3Z) is the third interstellar object (ISO), following 1I/‘Oumuamua and 2I/Borisov, to be discovered during a passage through the Solar System. The […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Press Release
Rotational Spectra And Search For Aromatic Imines: 9-Iminofluorene And Benzophenone Imine
Interstellar detections of several cyano derivatives of large polycyclic aromatic hydrocarbons (PAHs) have now been achieved, enabled by accurate laboratory measurements of their microwave rotational spectra.
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Press Release
Astrochemistry: The Largest Molecular Survey To-date: GOTHAM Legacy Data Goes Public
A groundbreaking new dataset from the U.S. National Science Foundation Green Bank Telescope (NSF GBT) is now publicly available, opening the door for scientists worldwide to make discoveries in one […]
Posted inAlpha Centauri, Astronomy & Telescopes, Barnard's Star, Biosignatures & Paleobiology, Intelligence & Language, SETI & Technosignatures, Status Report
Simulation Of The Earth’s Radio Leakage From Mobile Towers As Seen From Selected Nearby Stellar Systems
Mobile communication towers represent a relatively new but growing contributor to the total radio leakage associated with planet Earth.
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Status Report
Discovery of the 7-ring PAH Cyanocoronene (C24H11CN) in GOTHAM Observations of TMC-1
We present the synthesis and laboratory rotational spectroscopy of the 7-ring polycyclic aromatic hydrocarbon (PAH) cyanocoronene (C24H11CN) using a laser-ablation assisted cavity-enhanced Fourier transform microwave spectrometer.
![RGB compilation in the Cygnus X region covering the footprint that we surveyed; in red is the CGPS 1.4 GHz continuum (Taylor et al. 2003), green is MSX 8 µm PAH emission Schneider et al. (2006), and blue is 13CO (1-0) tracing (some of the) molecular gas (Schneider et al. 2010). Left: The numbers enclosed by a circle in black indicate the ‘DR’ continuum sources identified in 5 GHz observations by Downes & Rinehart (1966), which are mostly thermal H ii regions, except for DR3 and DR4 that make up the supernova remnant γ-Cygni. Dotted circles show the Cyg OB2 association and open clusters NGC 6910 and NGC 6913. The region at ℓ > 80◦ commonly referred to as Cyg X North and at ℓ < 80◦ (also typically at lower latitudes) as Cyg X South are also indicated. Right: Contours of velocity-integrated C273α (moment 0), drawn at [3, 5.5, 8, ...28]σ. C273α is detected from 75% of the mapped region. -- astro-ph.GA](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/01/Cold-Dark-Gas-in-Cygnus-X.png?resize=1200%2C720&ssl=1)
Posted inAstrochemistry, Astronomy & Telescopes, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Status Report
Cold Dark Gas in Cygnus X: The First Large-scale Mapping of Low-frequency Carbon Recombination Lines
Understanding the transition from atomic gas to molecular gas is critical to explain the formation and evolution of molecular clouds.