“Physicists suggest a new way to look for dark matter: They believe that dark matter particles annihilate into so-called dark radiation when they collide. If true, then we should be able to detect the signals from this radiation.”
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“Numerous recent blogs and web postings are erroneously claiming that an asteroid will impact Earth sometime between Sept. 15 and 28, 2015. On one of those dates, as rumors go, there will be an impact—"evidently" near Puerto Rico—causing wanton destruction to the Atlantic and Gulf coasts of the United States and Mexico, as well as Central and South America.
That's the rumor that has gone viral—now here are the facts.”“Researchers at Southwest Research Institute (SwRI) and Queen's University in Canada have unraveled the mystery of how Jupiter and Saturn likely formed. This discovery, which changes our view of how all planets might have formed, will be published in the Aug. 20 issue of Nature.”
“A longstanding mystery about the tiny stars that let loose powerful explosions known as Type Ia supernovae might finally be solved.
For decades, astronomers have debated whether one white dwarf star, or two, is necessary for firing up this particular kind of supernova. The answer is not merely academic. Understanding the nitty-gritty physics and diversity of Type Ia supernovae will help illuminate our study of the evolution of galaxies and the strange cosmic force known as dark energy.”“Dwarf galaxies are the most abundant galaxies in the universe. Yet understanding how these systems behave in galaxy group environments is still a mystery.
These objects are notoriously difficult to study because they are very small relative to classic spiral galaxies. They also have low mass and a low surface brightness, which means that, to date, we have only studied the dwarf galaxies in the nearby universe, out to about 35 million light years away.”“If everything goes according to plan, on Wednesday, Aug. 19, at 6:45 a.m. St. Louis time, NASA TV will broadcast the launch of a cargo container at the Tanegashima Space Center off the southern coast of Japan. In addition to water and spare parts, the cargo container will carry CALET, an astrophysical observatory designed to study the high-energy cosmos.”