14.4.25
ENDROITS ETRANGES ET TERRIFIANTS - Hôpital psychiatrique abandonné de Parme (Italie)
AUTOMOBILE - Fabuleuses traction avant - Lancia Fulvia
13.4.25
MUSIC NEWS - Lana Del Rey - La chanteuse américaine partage le single de “The Right Person Will Stay”
LA LISTE NOIRE DES COMPAGNIES AERIENNES - Air Zimbabwe (PVT)
LES PLUS BELLES GROTTES - Un crustacé Niphargus course dans les grottes de Frasassi, en Italie
12.4.25
AUTOMOBILE - Fabuleuses traction avant - Ford Mondeo
LA LISTE NOIRE DES COMPAGNIES AERIENNES - Air Tanzania Basée en Tanzanie,
11.4.25
LES PLUS BELLES GARES - États-Unis - Washington
NEWS EN IMAGES - Surveillance
10.4.25
AUTOMOBILE - Fabuleuses traction avant - Ford Fiesta
ENDROITS ETRANGES ET TERRIFIANTS - Le monument abandonné de Buzludzha (Bulgarie)
NEWS EN IMAGES - Explosif
ANIMAUX - Elephanteau secouru
9.4.25
VIEILLES VILLES DU MONDE ENCORE HABITEES - Erbil, Irak (2300 avant JC)
NEWS EN IMAGES - Voyage sur le toit
8.4.25
AUTOMOBILE - Fabuleuses traction avant - Fiat 128
NEWS EN IMAGES - Mission spatiale
7.4.25
ASTRONOMY - NGC 4414: A Flocculent Spiral Galaxy
2025 April 7
Image Credit: ESA/Hubble & NASA, O. Graur, S. W. Jha, A. Filippenko
Explanation: How much mass do flocculent spirals hide? The featured image of flocculent spiral galaxy NGC 4414 was taken with the Hubble Space Telescope to help answer this question. Flocculent spirals -- galaxies without well-defined spiral arms -- are a quite common form of galaxy, and NGC 4414 is one of the closest. Stars and gas near the visible edge of spiral galaxies orbit the center so fast that the gravity from a large amount of unseen dark matter must be present to hold them together. Understanding the matter and dark matter distribution of NGC 4414 helps humanity calibrate the rest of the galaxy and, by deduction, flocculent spirals in general. Further, calibrating the distance to NGC 4414 helps humanity calibrate the cosmological distance scale of the entire visible universe.