Astronomers think they’ve finally detected the long-hidden, sought-after neutron star remnant at the center of the nearby Supernova 1987A.
Astronomers think they’ve detected long-hidden neutron star remnant at the central core of the nearby Supernova 1987A.
A ghostly particle that smashed into Antarctica in 2019 has been traced back to a black hole tearing apart a star while acting like a giant cosmic particle accelerator, a new study finds.
A team of scientists has detected the presence of a high-energy neutrino — a particularly elusive particle — in the wake of a star’s destruction as it is consumed by a black hole. This discovery, reported in the journal Nature Astronomy, sheds new light on the origins of Ultrahigh Energy Cosmic Rays — the highest energy particles in the Universe.
The work, which included researchers from more than two dozen institutions, including New York University and Germany’s DESY research center, focused on neutrinos — subatomic particles that are produced on Earth only in powerful accelerators.
Neutrinos — as well as the process of their creation — are hard to detect, making their discovery, along with that of Ultrahigh Energy Cosmic Rays (UHECRs), noteworthy.
There’s no denying that black holes are the most destructive force in the universe, with their swirling, light-swallowing maw devouring anything that crosses its perilous event horizon.
The Beijing-Arizona Sky Survey (BASS) team of National Astronomical Observatories of Chinese Academy of Sciences (NAOC) and their collaborators of the Dark Energy Spectroscopic Instrument (DESI) project released a giant 2D map of the universe, which paves the way for the upcoming new-generation dark energy spectroscopic survey.
Modern astronomical observations reveal that the universe is expanding and appears to be accelerating. The power driving the expansion of the universe is called dark energy by astronomers. Dark energy is still a mystery and accounts for about 68% of the substance of the universe.
Large-scale redshift measurements of galaxies can describe the 3D distribution of the matter and reveal the effect of dark energy on the expansion of the universe.
Great new episode with Alex Filippenko, a University of California, Berkeley astronomer, who was part of the Nobel-winning teams that discovered dark energy in the late 1990s. Please listen.
Nearly 25 years after its discovery, the mystery at the core of dark energy persists. Astronomers are no closer to understanding what’s behind this cosmic repulsive force that counteracts gravity and causes the cosmos to expand at an accelerating rate than when it was first discovered in 1998. Guest Alexei Filippenko is a member of the Nobel Prize-winning team that detected dark energy via supernovae surveys. He gives us the inside scoop on how dark energy was detected; what it means for our existence and the prospects for unmasking this bizarre force of nature that makes up some 70 percent of the observable universe.
The cosmic microwave background, or CMB, is the electromagnetic echo of the Big Bang, radiation that has been traveling through space and time since the very first atoms were born 380000 years after our universe began. Mapping minuscule variations in the CMB tells scientists about how our universe came to be and what it’s made of.
New observations of the first black hole ever detected have led astronomers to question what they know about the Universe’s most mysterious objects.
Published today (February 182021) in the journal Science, the research shows the system known as Cygnus X-1 contains the most massive stellar-mass black hole ever detected without the use of gravitational waves.
Cygnus X-1 is one of the closest black holes to Earth. It was discovered in 1964 when a pair of Geiger counters were carried on board a sub-orbital rocket launched from New Mexico.
Scientists might be able to piece together a better understanding of the complexities around how black holes behave.
