Results 191 to 200 of about 2,843 (308)

Evidence of star cluster migration and merger in dwarf galaxies. [PDF]

Nature
Poulain M, Smith R, Duc PA, Marleau FR, Habas R, Durrell PR, Fensch J, Lim S, Müller O, Paudel S, Sánchez-Janssen R.   +10 more
europepmc   +1 more source

Supramolecular Aggregates of Amino Acid‐Functionalized 1,8‐Naphthalimides for Chiral Recognition

Chemistry–Methods, Volume 6, Issue 7, July 2026.
We synthesized three self‐assembling, amino acid‐functionalized 1,8‐naphthalimides. We studied their aggregation in solution and demonstrated their chiral recognition ability by fluorescence and resonance light scattering measurements. Notably, these fluorescent probes maintain their chiral recognition ability when incorporated in solid supports like ...
Salvatore Marullo, Francesca D’Anna
wiley   +1 more source

A giant disk galaxy two billion years after the Big Bang. [PDF]

Nat Astron
Wang W, Cantalupo S, Pensabene A, Galbiati M, Travascio A, Steidel CC, Maseda MV, Pezzulli G, de Beer S, Fossati M, Fumagalli M, Gallego SG, Lazeyras T, Mackenzie R, Matthee J, Nanayakkara T, Quadri G.   +16 more
europepmc   +1 more source

Massive Stellar Content of the Cygnus Superbubble

, 2015
The Cygnus superbubble is one of the largest bubbles known in the Milky Way galaxy so far. It has been identified by its strong X-ray emission and its angular size is approximately 18 by 13 degrees in Galactic longitude and latitude, respectively.
LeMieux, Henri
core  

A Dialogue on Revolutions and Revolutionaries in Science: A Perspective From Quantum Mechanics

Natural Sciences, Volume 6, Issue 3, July 2026.
ABSTRACT We discuss the notions of scientific revolutions and revolutionaries in the context of the Relativity Revolution and of the First, Second, and Third Quantum Revolutions. We conclude that at the core of the question of what qualifies as a revolution and revolutionary is an assessment of the gradients of knowledge accumulation over time, both at
Ron Folman, Bretislav Friedrich
wiley   +1 more source

Accurate determination of chemical abundances near a supermassive black hole. [PDF]

Nat Astron
XRISM Collaboration.
europepmc   +1 more source

Out There No One Has a Right to Die

Bioethics, Volume 40, Issue 6, Page 565-572, July 2026.
ABSTRACT The eventual goal of space exploration is to colonize exoplanets and their moons outside our solar system. This is a dangerous and immoral endeavour. The extraterrestrial life forms encountered would be hostile, vulnerable or both, and the descendants of the original pioneers would be involuntarily exposed to hazardous conditions and ...
Matti Häyry
wiley   +1 more source

Little red dots as young supermassive black holes in dense ionized cocoons. [PDF]

Nature
Rusakov V, Watson D, Nikopoulos GP, Brammer G, Gottumukkala R, Harvey T, Heintz KE, Damgaard R, Sim SA, Sneppen A, Vijayan AP, Adams N, Austin D, Conselice CJ, Goolsby CM, Toft S, Witstok J.   +16 more
europepmc   +1 more source

A Milky Way-like barred spiral galaxy at a redshift of 3. [PDF]

Nature, 2023
Costantin L, Pérez-González PG, Guo Y, Buttitta C, Jogee S, Bagley MB, Barro G, Kartaltepe JS, Koekemoer AM, Cabello C, Corsini EM, Méndez-Abreu J, de la Vega A, Iyer KG, Bisigello L, Cheng Y, Morelli L, Arrabal Haro P, Buitrago F, Cooper MC, Dekel A, Dickinson M, Finkelstein SL, Giavalisco M, Holwerda BW, Huertas-Company M, Lucas RA, Papovich C, Pirzkal N, Seillé LM, Vega-Ferrero J, Wuyts S, Yung LYA.   +32 more
europepmc   +1 more source

The stellar content of dwarf spheroidal galaxies

The Astrophysical Journal, 1980
openaire   +1 more source