4+ day, 18+ hour ago   (433+ words) For the first time, astronomers combined Hubble and Webb space telescopes to hunt down some of the smallest, faintest objects ever spotted in the outer Solar System. This artist’s concept depicts a trans-Neptunian object. Image credit: NASA / ESA / Leah Hustak,…...

5+ day, 12+ hour ago   (496+ words) A cubic meter of lunar soil might be one of our best bets for finding physical proof that another advanced civilization once existed somewhere in the Milky Way, according to a new paper to be published in the International Journal…...

5+ day, 17+ hour ago   (200+ words) Astronomers have combined 2,884 Type Ia supernovae -- which are used to measure cosmic distances -- with cosmic microwave background and galaxy-mapping data, deepening cracks in the standard ‘cosmological constant’ model....

6+ day, 12+ hour ago   (24+ words) When two black holes merge, the resulting object rings like a struck bell, radiating gravitational waves that fade in a distinctive pattern called ringdown....

1+ week, 10+ hour ago   (37+ words) After nearly eight years and billions of kilometers of travel, BepiColombo -- a science mission led by ESA in close collaboration with JAXA -- has begun its long-awaited arrival at the smallest and innermost planet in our Solar System....

1+ week, 4+ day ago   (43+ words) For almost five decades, Saturn’s north pole has been famous for hosting a bizarre, six-sided jet stream known as the hexagon, a feature first spotted by NASA’s Voyager spacecraft in the 1980s and still churning today....

1+ week, 4+ day ago   (130+ words) A new image from the Gemini North telescope on Maunakea in Hawai’i offers the sharpest look yet at a striking pair of interacting spiral galaxies, cataloged as NGC 7253....

1+ week, 6+ day ago   (226+ words) Using a novel laboratory calibration, planetary researchers in Germany have produced the most reliable map yet of silica (SiO2) concentrations across the surface of Earth’s Moon, and a first silica estimate for Mercury....

2+ week, 4+ day ago   (455+ words) Astronomers using the NASA/ESA/CSA James Webb Space Telescope have revealed a surprisingly large population of faint, low-mass stars in distant galaxies, suggesting some of the early Universe’s biggest galaxies may contain up to four times more stellar mass…...

2+ week, 5+ day ago   (336+ words) The mysterious objects spotted in the early Universe may not be isolated points of light after all. A new analysis of images of 217 ‘little red dots’ from the NASA/ESA/CSA James Webb Space Telescope suggests they sit inside remarkably…...