Science

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How black holes shut down star formation
How black holes shut down star formation


How Black Holes Shut Down Star Formation

Astronomers have found proof that the strong winds blown by a supermassive black hole are dispersing the gas reservoir of its host galaxy. The new finding relies on the observation of two phenomena in the same galaxy: a large-scale galactic outflow, seen by ESA’s Herschel space observatory, and a black-hole driven wind at the galaxy’s […]

This is a life reconstruction of Carnufex carolinensis. Credit Copyright Jorge Gonzales. Open access
This is a life reconstruction of Carnufex carolinensis. Credit Copyright Jorge Gonzales. Open access


‘Carolina Butcher’ Crocodile Was Top Predator Before Dinosaurs Roamed North America

A newly discovered crocodilian ancestor may have filled one of North America’s top predator roles before dinosaurs arrived on the continent. Carnufex carolinensis, or the “Carolina Butcher,” was a 9-foot long, land-dwelling crocodylomorph that walked on its hind legs and likely preyed upon smaller inhabitants of North Carolina ecosystems such as armored reptiles and early […]

Artist’s conception of MAVEN’s Imaging UltraViolet Spectrograph (IUVS) observing the “Christmas Lights Aurora" on Mars. MAVEN observations show that aurora on Mars is similar to Earth’s "Northern Lights" but has a different origin. Image Credit: University of Colorado
Artist’s conception of MAVEN’s Imaging UltraViolet Spectrograph (IUVS) observing the “Christmas Lights Aurora" on Mars. MAVEN observations show that aurora on Mars is similar to Earth’s "Northern Lights" but has a different origin. Image Credit: University of Colorado


Aurora And Mysterious Dust Cloud Detected Around Mars

NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft has observed two unexpected phenomena in the Martian atmosphere: an unexplained high-altitude dust cloud and aurora that reaches deep into the Martian atmosphere. The presence of the dust at orbital altitudes from about 93 miles (150 kilometers) to 190 miles (300 kilometers) above the surface was not […]