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UD Professor Frank Schroeder has traveled to some of the most remote locations on the planet to set up radio antennas to detect cosmic rays, which are nature’s highest-energy particles. At right, he is shown in Siberia with a research team from Germany and Russia prior to his UD career. UD physicist named Sloan Research Fellow Article by Tracey Bryant Photos courtesy of Frank Schroeder | Photo illustration by David Barczak February 16, 2021 Frank Schroeder awarded prestigious fellowship Frank G. Schroeder, assistant professor of phys...

  In 2013, the Hubble Space Telescope found the birth certificate of oldest known star in the universe, cataloged as HD 140283, aptly named “methuselah”. The star, located in the constellation Libra, which is at the very first stages of expanding into a red giant, could be as old as 14.5 billion years (plus or minus 0.8 billion years), which at first glance would make it older than the universe’s calculated age of about 13.8 billion years, creating what we commonly call a dilemma. The strange star, said NASA’s Hubble team, which has an anemic 1/250th as much of the heavy element cont...

A star could be the reason behind your bad cellphone reception Updated East Coast Radio Share this: Researchers are investigating a very strange phenomenon in South Africa that could be affecting all cellphone users. Twitter/TheCapeArgus Darren Maule has noticed that he has being getting very bad reception when on a call in areas he has had no issues in before. Have you also noticed the same thing? According to researchers, a star could be disrupting mobile phone reception across South Africa. Soebur Razzaque, who is the research team leader and the University of Johannesburg Centre for A...

A Prime Suspect for Dark Matter Might Be Escaping From Neutron Stars Image: NASA/Chandra X-Ray Observatory (Fair Use) After axions were first theorized by physicists in the suburbs of Chicago 45 years ago, they quickly became a robust candidate for explaining dark matter. All this time, though, the ultra-small particles have remained hypothetical. Now, a team of astrophysicists have proposed that axions may be responsible for an excess of X-ray emissions seen coming from a group of neutron stars in our galaxy. Advertisement The stars—dubbed the “Magnificent Seven”—are neutron stars th...

“Old Faithful” cosmic eruption shows black hole ripping at star You’ve heard of Old Faithful, the Yellowstone National Park geyser that erupts every hour or two, a geological phenomenon on a nearly predictable schedule. Now, an international group of scientists who study space have discovered an astronomical “Old Faithful” – an eruption of light flashing about once every 114 days on a nearly predictable schedule. The researchers believe it is a tidal disruption event, a phenomenon that happens when a star gets so close to a black hole that the black hole “rips” away pieces of ...