Results 61 to 70 of about 1,293 (185)

Prediscovery Activity of New Interstellar Object 3I/ATLAS: Rapid Brightening from 6 to 4 au

The Astrophysical Journal Letters
We report on the prediscovery observations and constraints of the new interstellar comet 3I/2025 N1 (ATLAS), made by the Zwicky Transient Facility, for the inbound leg of the comet out to a heliocentric distance of r _h  = 17 au, or approximately a year ...
Quanzhi Ye, Michael S. P. Kelley, Henry H. Hsieh, Eric C. Bellm, Tracy X. Chen, Richard Dekany, Andrew Drake, Steven L. Groom, George Helou, Shrinivas R. Kulkarni, Thomas A. Prince, Reed Riddle   +11 more
doaj   +1 more source

Combustion and Pyrolysis EA‐IRMS Techniques to Determine the δ2H of Diamonds

Rapid Communications in Mass Spectrometry, Volume 40, Issue 10, 30 May 2026.
ABSTRACT Rationale Diamonds are generally considered to be metasomatic minerals originating from the Earth's mantle. They formed through the interaction of carbon‐bearing fluids or melts with the surrounding deep lithology. Most knowledge about the formation of diamonds comes from studying their mineral inclusions or stable isotopes.
François Fourel, Christophe Lécuyer, Emilie Thomassot, Etienne Deloule, Charles Ojeimi   +4 more
wiley   +1 more source

C. F. v. Weizsächer on Quasistationary Isotropic Turbulence Compared With Onsager's Statistical Hydrodynamics

Natural Sciences, Volume 6, Issue 2, April 2026.
v. Weizsäcker and Heisenberg began their turbulence collaboration in 1945 while still quarantined at Farm Hall. Their papers were submitted separately in 1946 from Göttingen. v. Weizsäcker had derived the 5/3 law for dissipation while using dimensional analysis in real space.
Joseph L. McCauley
wiley   +1 more source

Intercepting 3I/ATLAS at Its Closest Approach to Jupiter with the Juno Spacecraft

Aerospace
The interstellar object 3I/ATLAS is expected to arrive at a distance of 53.56(±0.45) million km (0.358±0.003 au) from Jupiter on 16 March 2026. We show that applying a total thrust ΔV of 2.6755kms−1 to the lower perijove on 9 September 2025 and then ...
Abraham Loeb, Adam Hibberd, Adam Crowl
doaj   +1 more source

Technosignature Searches of Interstellar Objects

With the discovery of the third confirmed interstellar object (ISO), 3I/ATLAS, we have entered a new phase in the exploration of these long-predicted objects. Though confirmed discovery of ISOs is quite recent, their utility as targets in the search for technosignatures (historically known as the Search for Extraterrestrial Intelligence -- SETI) has ...
Davenport, James R. A., Sheikh, Sofia Z., Croft, Steve, Lacki, Brian C., Wright, Jason T., Lintott, Chris, Frank, Adam, Lazio, T. Joseph W., Chandler, Colin Orion, Siemion, Andrew P. V., DiKerby, Stephen, White, Ellie, Lopez, Valeria Garcia, Yu, Emma E., Frissell, Maxwell K., Yoachim, Peter, Morato, Naomi, Singh, Devanshi, Zhang, Jinshuo, Seligman, Darryl Z.   +19 more
openaire   +2 more sources

Interstellar Migration, the Population ‘Problem’ and the Climate Emergency

Critical Quarterly, EarlyView.
Anna Hartnell
wiley   +1 more source

The Dynamics of Reading Genre Fiction: Researching and Teaching Interpretive Practices

Reading Research Quarterly, Volume 61, Issue 2, April/May/June 2026.
Conceptual model positioning genre fiction as a site for studying how narrative form organizes reader interpretation, identifying four dynamics—iterability, narrative interest, serialization, and spectacle—to guide empirical research on reading processes.
Robert Jean LeBlanc, Amy Stornaiuolo
wiley   +1 more source

Fragmentation Pathways of Diaminomaleonitrile: Automated Discovery and High‐Level Energetics Under Laser‐Driven Conditions

ChemPhysChem, Volume 27, Issue 6, 27 March 2026.
Laser irradiation of a 2,3‐diaminomaleonitrile (DAMN) molecule (white) induces decomposition into the highlighted products (yellow). The laptop denotes a computational simulation designed to mimic the laser ablation experiment. We investigate the fragmentation chemistry of 2,3‐diaminomaleonitrile (DAMN), a key hydrogen cyanide (HCN) tetramer in ...
Marta Castiñeira Reis, Antonio Fernández Ramos   +1 more
wiley   +1 more source

Artificial Broadcasts as Galactic Populations. I. A Point Process Formalism for Extraterrestrial Intelligences and Their Broadcasts

The Astrophysical Journal
Artificial broadcasts from extraterrestrial intelligences are a hypothetical class of celestial phenomena. Unlike known astrophysical objects, the societies that generate them may be able to replicate on galactic scales through interstellar travel ...
Brian C. Lacki
doaj   +1 more source

First Principles Rovibronic Absorption Spectra of HF Molecule

Journal of Computational Chemistry, Volume 47, Issue 6, March 5, 2026.
Hydrogen fluoride (HF) is astrophysically important, as it has been detected in sunspots, Venus, red giants, and the interstellar medium, serving as a probe of exoplanet atmospheres. This article presents an ab initio investigation of HF rovibronic spectroscopy, combining high‐level electronic‐structure data with nuclear‐motion solutions and refinement
Nariman Abu El Kher, Maha Shibli, Mahmoud Korek, Sergei N. Yurchenko, Jonathan Tennyson, Nayla El‐Kork   +5 more
wiley   +1 more source