6+ day, 12+ hour ago   (326+ words) Sep 8, 2026, 04:00 AM FR · ES · DE · PT An exploding star could send highly energetic neutrinos toward Earth several days before reaching its maximum brightness. Before some supernovas, the dying star loses a great deal of matter. This gas remains around it…...

1+ week, 6+ hour ago   (440+ words) FR · ES · DE · PT Future observations of black holes by LISA could reveal the existence of unknown particles much lighter than those detected in accelerators. The idea is based on a remarkable effect around rotating black holes. Certain hypothetical particles,…...

1+ week, 6+ day ago   (143+ words) Sep 1, 2026, 04:00 AM FR · ES · DE · PT Some of the dark matter thought to have been ruled out by the thermal history of the Universe may actually still be possible. Anson Hook, Junwu Huang and Mohamad Shalaby reexamined this step using…...

2+ week, 2+ day ago   (348+ words) Aug 29, 2026, 07:00 AM FR · ES · DE · PT A thin trail of stars has been spotted in a galaxy beyond the Milky Way. It appears to have originated from a globular cluster, a very dense group of old stars. This would be…...

3+ week, 5+ day ago   (278+ words) Aug 19, 2026, 07:00 AM FR · ES · DE · PT Collisions of light nuclei performed at the Large Hadron Collider are providing new clues to an extreme state of matter. The ALICE, ATLAS, CMS and LHCb experiments have all observed phenomena compatible with the…...

3+ week, 6+ day ago   (417+ words) Aug 18, 2026, 11:00 AM FR · ES · DE · PT A dying star surrounded by gas takes on the appearance of a lion’s face in new images from the James Webb Space Telescope. Behind this spectacular shape, infrared observations of NGC 2392 mainly reveal small…...