UA-113443594-1

Observations of nearby supernova and associated jet cocoon provide new insights...

IMAGE: Artist representation of the hypernova. view more  Credit: Anna Serena Esposito WASHINGTON (Jan. 17, 2019)--Gamma-ray bursts are the most powerful explosions in the cosmos. These explosions last several seconds and emit the same amount of light as nearly all the stars in the universe. Such extreme amounts of energy can only be released during catastrophic events like the death of a very massive star, and…

New quantum structures in super-chilled helium may mirror early days of...

IMAGE: Representation of the spin vectors of the liquid helium as they form half quantum vortices. view more  Credit: Ella Maru Studios For the first time, researchers have documented the long-predicted occurrence of 'walls bound by strings' in superfluid helium-3. The existence of such an object, originally foreseen by cosmology theorists, may help explaining how the universe cooled down after the Big Bang. With the newfound…

Pioneering imager at Georgia State’s CHARA Array gives sharpest view of...

IMAGE: This is Douglas Gies, Regents' Professor of Astronomy at Georgia State University and director of CHARA view more  Credit: Georgia State University ATLANTA--A pioneering new instrument that can produce the sharpest images of young stars is now available for use by scientists worldwide. The instrument, called MIRC-X, will give astronomers a fascinating glimpse into how our solar system may have looked when it first formed.…

U develops first dark sky studies minor in the US

IMAGE: The minor in dark sky studies seeks to expand a new pedagogical model for transdisciplinary undergraduate studies. Fifteen instructors from all corners of campus will collaborate to develop syllabi and... view more  Credit: Lisa Potter/University of Utah The W. M. Keck Foundation has awarded $250,000 to the University of Utah to establish a new undergraduate minor in dark sky studies, the first of its kind…

From emergence to eruption: Comprehensive model captures life of a solar...

A team of scientists has, for the first time, used a single, cohesive computer model to simulate the entire life cycle of a solar flare: from the buildup of energy thousands of kilometers below the solar surface, to the emergence of tangled magnetic field lines, to the explosive release of energy in a brilliant flash. The accomplishment, detailed in the journal Nature Astronomy, sets the…

Observations of a rare hypernova complete the picture of the death...

IMAGE: This is an artist representation of the hypernova. The interaction of the jet with the outer layers of the star forms a cocoon that surrounds the head of the jet... view more  Credit: Anna Serena Esposito The end of a star's life can occur in a tranquil manner in the case of low mass stars, such as the Sun. This is not the case, however,…

New study finds evidence of changing seasons, rain on Titan’s north...

WASHINGTON -- An image from the international Cassini spacecraft provides evidence of rainfall on the north pole of Titan, the largest of Saturn's moons. The rainfall would be the first indication of the start of a summer season in the moon's northern hemisphere. "The whole Titan community has been looking forward to seeing clouds and rains on Titan's north pole, indicating the start of the…

POLAR experiment reveals orderly chaos of black holes

IMAGE: Left: Merger of two neutron stars (or a black hole and a neutron star) to produce gravitational waves; Right: Gamma-ray burst. view more  Credit: Image by IHEP An international consortium of scientists studying gamma-ray bursts (GRBs) as part of the POLAR (GRB polarimeter) experiment has revealed that high-energy photon emissions from black holes are neither completely chaotic nor completely organized, but a mixture. The results…

PolyU provides support to the nation’s historic landing on the far...

IMAGE: PolyU mobilizes multi-disciplinary resources to support Chang'e-4 mission. view more  Credit: The Hong Kong Polytechnic University The Hong Kong Polytechnic University (PolyU) proudly supported the nation's current lunar exploration, Chang'e-4 lunar probe, which successfully performed the historic landing on the far side of the Moon on 3 January 2019. Adopted by Chang'e-4 mission was PolyU's advanced technologies, namely the design and development of an advanced…

Tel Aviv University-led team discovers new way supermassive black holes are...

IMAGE: This is an artistic impression of a gas disk feeding a massive black hole while emitting radiation. view more  Credit: NASA Supermassive black holes weigh millions to billions times more than our sun and lie at the center of most galaxies. A supermassive black hole several million times the mass of the sun is situated in the heart of our very own Milky Way. Despite…
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