Astrophysics & Cosmology

2+ hour, 59+ min ago   (895+ words) Earth seems like a troubled place right now, but at least our cosmic surroundings appear peaceful. But this is not universally true, as explosions, collisions and other dangers lurk in other places and times. In our new research, published in…...

6+ hour, 36+ min ago   (1134+ words) The discovery reveals a new way that stars and planetary companions can interact image: Artist's impression of ZTF J0440+2325, a brown dwarf (right) and a red dwarf (left) that orbit each other every 86.65 minutes. The brown dwarf overflows onto its companion,…...

11+ hour, 5+ min ago   (145+ words) [astro-ph.GA] Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous in the interstellar medium and are among its smallest carbonaceous grains. We present full-sky maps of the integrated radiance of the 3.3 μm aromatic C-H stretch and the adjacent 3.4-3.5 μm aliphatic complex, from…...

3+ hour, 56+ min ago   (719+ words) Humanity’s default story about the universe is expansionist: more telescopes, better rockets, farther horizons. Look long enough at the night sky and it feels like an invitation — an unfinished map with blank continents waiting for explorers. That fact alone should…...

4+ hour, 50+ min ago   (232+ words) The center of the Milky Way as seen from Chile. The core contains very old stars that date back to early in cosmic history. Credit: ESO/P.Horalek CC by 4.0. As Dr. Martin Rey from the Department of Physics at the…...

6+ hour, 32+ min ago   (310+ words) Artist's impression of ZTF J0440+2325, a brown dwarf (right) and a red dwarf (left) that orbit each other every 86.65 minutes. The brown dwarf overflows onto its companion, and the stream of material strikes the surface of the red dwarf, heating a…...

7+ hour, 28+ min ago   (132+ words) Cosmic Origins Early-Career Workshop REGISTRATION OPEN & ABSTRACT SUBMISSION Deadline NASA Science (.gov) NASA Opens Applications for Next Class of Flight Directors NASA Adds New Science Investigations for Moon Base What’s Up: October 2026 Skywatching Tips from NASA Suspected Second-generation Planet Solves…...

5+ hour, 6+ min ago   (340+ words) The study, led by researchers at the University of Portsmouth with colleagues at Syracuse University and the École Normale Supérieure in Paris, appeared in the September 2026 issue of the Journal of Cosmology and Astroparticle Physics. Zeno lived in the fifth…...

8+ hour, 52+ min ago   (315+ words) In this segment of Cosmically Curious, host Patrick McNameeKing speaks with astronomer John Gianforte from the University of New Hampshire about whether the cosmos preserves a record of everything that has ever happened — and what the physics of our own…...

4+ hour, 8+ min ago   (1094+ words) New simulations trace the Milky Way back to a turbulent network of thousands of small galaxies in the early universe. The Milky Way may have emerged from a crowded cosmic environment filled with thousands of smaller galaxies, many of them…...