Astronomers have managed to peer into the past of a nearby star millions of years before its famous explosion, using a telescope in remote outback Australia at a site free from FM radio interference.
Research by an international team including astronomers at the International Centre of Radio Astronomy Research (ICRAR) observing the region at the lowest-ever radio frequencies has helped fine-tune our understanding of stellar explosions.
WASHINGTON, July 28, 2016 -- At the Jet Propulsion Lab in Pasadena, California, NASA is preparing tiny satellites the size of briefcases for a mission to Mars. Called CubeSats, swarms of these small marvels could potentially take on NASA's riskiest missions -- think exploring the surface of Venus or the volcanoes of Io -- at a lower cost than full-size, multi-instrument satellites. Matt Davenport and JPL Chief Engineer for Interplanetary Small Spacecraft Andrew Klesh geek out on CubeSats in the latest Speaking of Chemistry episode.
The recent detection of gravitational waves emitted by two merging black holes by the LIGO and Virgo collaborations has opened up a new observational window into the cosmos.
Future observations of similar mergers between two neutron stars or a neutron star and a black hole may revolutionize what we know today about the properties of neutron stars, the densest stellar objects in the universe. By providing detailed dynamical information about the material properties of these stars, such measurements will shed light on their internal composition.
Safety concerns of the concomitant use of clopidogrel with the proton pump inhibitors (PPIs) omeprazole or esomeprazole were published in May 2009 and February 2010 by European regulatory agencies. After the last publication, there was an observed drop in dispensing these medicines in the Netherlands: 11.9 percent decreases for omeprazole and esomeprazole, versus an increase of 16.0 percent for other PPIs. Still 22.6 percent of patients started on omeprazole and esomeprazole in February 2010, placing them at risk for cardiovascular events.
NASA analyzed rainfall data from slow-moving storms that triggered flash floods over parts of central Maryland and caused devastating flooding in historic Ellicott City, Maryland.
A slow-moving line of heavy thunderstorms dumped as much as 6 to 7 inches of rain in about two hours' time during the evening of Saturday, July 30, over parts of Howard County in central Maryland, resulting in severe local flash flooding.
HOUSTON - (August 1, 2016) - In a set of papers published last week in Cell Systems, Dr. Erez Lieberman Aiden, assistant professor of molecular and human genetics and McNair Scholar at Baylor College of Medicine and director of the Center for Genome Architecture (TC4GA), and his colleagues introduce Juicer, an open-source tool used in three-dimensional (3-D) genome sequencing (Hi-C) processes.
Tropical Depression 06W appeared to be consolidating and coming together in infrared imagery from NASA's Aqua satellite. The storm formed east of the Philippines in the Philippine Sea on July 29, 2016.
Vibrations from a bus engine can sometimes be felt uncomfortably strongly through the seats. Similarly, vibrations from the propellers or rotors in propeller aircraft and helicopters can make the flight bumpy and loud, and also lead to increased fatigue damage of the aircraft and its components. Engineers have therefore sought to prevent such vibrations in machines, vehicles and aircraft. A new three-dimensional lattice structure developed by ETH scientists could now expand the possibilities of vibration absorption.
Tropical Storm Frank weakened to a tropical storm on July 28, 2016 and satellite imagery shows that winds and thunderstorms have continued to weaken.
On July 27, NASA's RapidScat instrument observed Frank's strongest sustained winds were near 30 meters per second (67 mph/108 kph) north of the center. Tropical-storm-force winds extended outward up to 60 miles (95 km) from the center. Frank weakened from a hurricane to a tropical storm by 5 p.m. EDT on July 27.
Supermassive black holes do not give off any of their own light, hence the word "black" in their name. However, many black holes pull in, or accrete, surrounding material, and emit powerful bursts of X-rays. Collectively, these active black holes throughout the sky can be thought of a cosmic choir, singing in the language of X-rays. Their "song" is what astronomers call the cosmic X-ray background.
BOSTON, Mass. - July 27, 2016 - Penumbra, Inc. (NYSE: PEN), a global interventional therapies company, today announced that the Penumbra 3D Trial successfully met the primary trial endpoints, demonstrating non-inferiority in both safety and efficacy of the company's next-generation stent retriever, Penumbra 3D Revascularization Device, when used with Penumbra System aspiration devices compared to Penumbra System aspiration devices alone.
Astronomers using the NASA/ESA Hubble Space Telescope, along with other telescopes on the ground and in space, have discovered a new type of exotic binary star: in the system AR Scorpii a rapidly spinning white dwarf star is powering electrons up to almost the speed of light. These high energy particles release blasts of radiation that lash the companion red dwarf star, and cause the entire system to pulse dramatically every 1.97 minutes with radiation ranging from the ultraviolet to radio.
Most of the Hawaiian Islands were spared serious damage from Tropical Storm Darby. NASA estimated the rainfall left behind from the storm and found more than a foot and half fell north of Oahu.
The location of Darby's track through the Hawaiian Islands resulted in the islands of Hawaii and Oahu being the most affected. Flash flooding was common on Oahu due to a reported 177.8 mm (7 inches) of rain drenching the island. Interstate H-1 was flooded in some locations. Lightning damage was reported in Kaneohe on the windward side of Oahu.
Tropical Storm Mirinae was moving through the Gulf of Tonkin early on July 27 when NASA's Aqua satellite passed overhead. Forecasters expect Mirinae to make landfall in northeastern Vietnam later in the day.
Infrared data from NASA showed that cloud top temperatures in Hurricane Frank were warming, an indication that Hurricane Frank was getting weaker.
Infrared data taken July 26 at 2053 UTC (4:53 p.m. EDT) from the Atmospheric Infrared Sounder or AIRS instrument that flies aboard NASA's Aqua satellite revealed that Frank was a compact storm. The center was surrounded by a small area of strong thunderstorms where cloud top temperatures were warming as the uplift of air weakened, not pushing cloud tops as high into the troposphere.