Most known black holes are either extremely massive, such as the supermassive black holes found in the centers of large galaxies, or relatively light, with masses less than 100 times that of the Sun. Intermediate-mass black holes (IMBHs), however, are rare and are considered rare “missing links” in black hole evolution. Now, an international team … Read more
Science and discovery 10/07/2024 1028 views 11 I like this An international team of astronomers has used more than 500 images from the NASA/ESA Hubble Space Telescope spanning two decades to detect seven fast-moving stars in the inner region of Omega Centauri, the largest and brightest globular cluster in the sky. These stars provide compelling … Read more
Artist’s impression of Smertrios. Credit: NASA. Using the CARMENES spectrograph, astronomers have found evidence of water vapor in the atmosphere of a hot Saturnian exoplanet called HD 149026 b, dubbed Smertrios. The finding, reported in a research paper published on the preprint server arXivcould hold the key to a better understanding of the structure and … Read more
How did the woolly mammoth, an ambassador of the Ice Age, come to be trapped in modern-day Wrangel? … [+] Island? And what ultimately caused their extinction? New evidence suggests it wasn’t bad genetics as previously thought. getty Rising sea levels around 10,000 years ago transformed Wrangel Island into a last refuge for the woolly … Read more
As the New Horizons spacecraft continues its epic journey to explore the Kuiper Belt, it has a study partner here on Earth. The Subaru Telescope on Hawaii’s Big Island is deploying its Hyper Suprime Cam imager to view the Kuiper Belt along the spacecraft’s path. The observations show that the Kuiper Belt extends farther than … Read more
Prehistoric humans hunt a woolly mammoth. Mounting evidence suggests that this species, and at least 46 other megaherbivores, were driven to extinction by humans. Credit: Engraving by Ernest Grise, photographed by William Henry Jackson. Getty’s Open Content Program The debate has raged for decades: was it humans or climate change that caused many species of … Read more
This article was reviewed according to Science fact checked trusted source proofread OK! Shocked quartz grains, with cracks filled with melt glass. Credit: UC Santa Barbara × close to Shocked quartz grains, with cracks filled with melting glass. Credit: UC Santa Barbara Researchers continue to expand the arguments for the Younger Dryas Impact Hypothesis. The … Read more
Shocked quartz grains, with cracks filled with molten glass. Credit: UC Santa Barbara Researchers continue to build the case for the Younger Dryas Impact hypothesis. The idea holds that a fragmented comet slammed into Earth’s atmosphere 12,800 years ago, triggering widespread climate change that led to, among other things, an abrupt reversal of Earth’s warming … Read more
Early one morning in late October 2013, Gerard Talavera, an entomologist, spotted something highly unusual: a flock of painted lady butterflies stranded on a beach in French Guiana. The painted lady, or the species Vanessa cardui, is one of the world’s most common butterflies, but is not found in South America. Yet there they lay … Read more
This article was reviewed according to Science fact checked peer-reviewed publication trusted source proofread OK! A rare rock sample, containing natural zirconia, from West Clearwater Lake. Credit: Jeff Renaud × close to A rare rock sample, containing natural zirconia, from West Clearwater Lake. Credit: Jeff Renaud For more than a decade, planetary geologist Gordon “Oz” … Read more