Quasars are supermassive black holes that sit at the center of enormous galaxies, accreting matter. They shine so brightly that they are often referred to as beacons and are among the most-distant objects in the universe that we can currently study. New work from a team led by Carnegie's Eduardo Bañados has discovered 63 new quasars from when the universe was only a billion years old. (It's about 14 billion years old today.) read more
Precision time signals sent through the Global Positioning System (GPS) synchronize cellphone calls, time-stamp financial transactions, and support safe travel by aircraft, ship, train and car. read more
According to a new study by scientists at Scripps Institution of Oceanography at the University of California San Diego, a large earthquake on one fault can trigger large aftershocks on separate faults within just a few minutes. These findings have important implications for earthquake hazard prone regions like California where ruptures on complex fault systems may cascade and lead to mega-earthquakes. read more
A research team including Professor William Laurance from James Cook University has discovered there has been a catastrophic decline in global wilderness areas during the past 20 years. read more
An international group of biologists is calling for data collection on a global scale to improve forecasts of how climate change affects animals and plants. read more
NASA's Aqua satellite passed over the U.S. Southwest and captured infrared data on the clouds associated with former Tropical Cyclone Newton. read more
Tropical Cyclone Hermine was just a swirl of clouds with no rainfall off the coast of southeastern Massachusetts on Thursday, Sept. 8. Just two days earlier, the GPM satellite saw that Hermine was still generating some rainfall. read more
After years of environmental destruction, China has spent billions of dollars on the world's largest reforestation program, converting a combined area nearly the size of New York and Pennsylvania back to forest. read more
Terzan 5, 19 000 light-years from Earth in the constellation of Sagittarius (the Archer) and in the direction of the galactic centre, has been classified as a globular cluster for the forty-odd years since its detection. Now, an Italian-led team of astronomers have discovered that Terzan 5 is like no other globular cluster known. read more
Dwarf galaxies are enigmas wrapped in riddles. Although they are the smallest galaxies, they represent some of the biggest mysteries about our universe. While many dwarf galaxies surround our own Milky Way, there seem to be far too few of them compared with standard cosmological models, which raises a lot of questions about the nature of dark matter and its role in galaxy formation. read more
Oceanographers from MIT and Woods Hole Oceanographic Institution report that the northeast Pacific Ocean has absorbed an increasing amount of anthropogenic carbon dioxide over the last decade, at a rate that mirrors the increase of carbon dioxide emissions pumped into the atmosphere. read more
Global fisheries stand to lose approximately $10 billion of their annual revenue by 2050 if climate change continues unchecked, and countries that are most dependent on fisheries for food will be the hardest hit, finds new UBC research. read more
Operation IceBridge, NASA's airborne survey of polar ice, is flying in Greenland for the second time this year, to observe the impact of the summer melt season on the ice sheet. The IceBridge flights, which began on August 27 and will continue until September 16, are mostly repeats of lines that the team flew in early May, so that scientists can observe changes in ice elevation between the spring and late summer. read more
NASA's Terra satellite and a NASA animation of imagery from NOAA's GOES-West satellite provided views of Hurricane Newton as it neared landfall in Baja California, Mexico, today, Sept. 6. read more
A University of Oklahoma study demonstrates for the first time that remote sensing data from weather surveillance radar and on-the-ground data from the eBird citizen science database both yield robust indices of migration timing, also known as migration phenology. These indices can now be used to address the critical gap in our knowledge regarding the cues that migrants use for fine tuning their migration timing in response to climate. read more
Nutrient pollution emptying into seas from cities, towns and agricultural land is changing the sounds made by marine life - and potentially upsetting navigational cues for fish and other sea creatures, a new University of Adelaide study has found. read more
International Union for Conservation for Nature, WWF and International Fund for Animal Welfare (IFAW) examines the results of the work of an IUCN-led independent panel of scientists, which has been advising Sakhalin Energy - one of the largest companies operating in the area - as part of an innovative loan deal. Over the last 12 years, Sakhalin Energy has made important efforts to limit the impact of its operations on whales and the fragile environment. During this period, the western gray whale population has grown 3-4% annually, from an estimated 115 animals in 2004 to 174 in 2015. read more
NASA's Aqua satellite passed over the Sea of Japan and saw Tropical Depression Namtheun weakening. read more
Research by Rice University Earth scientists suggests that virtually all of Earth's life-giving carbon could have come from a collision about 4.4 billion years ago between Earth and an embryonic planet similar to Mercury. read more
Newly published research by Indiana University scientists finds that low relative humidity in the atmosphere is a significant, growing and often under-appreciated cause of plant stress in hot, dry weather conditions. read more