What Is a Particle?
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Researchers at Florida State University have created new polymer blends that could make batteries safer and longer-lasting.
Using the TUBITAK National Observatory and ESA’s Gaia satellite, astronomers from the Istanbul University in Turkey and elsewhere have conducted comprehensive observations of two open clusters, namely: Czernik 41 and NGC 1342. Results of the observational campaign, published July 7 on the arXiv preprint server, deliver important insights into the properties of these clusters.
Open clusters (OCs) are groups of stars formed from the same giant molecular cloud and loosely gravitationally bound to each other. Astronomers are interested in inspecting OCs in detail as such studies could be crucial for improving our understanding of the formation and evolution of our galaxy.
That is why a group of researchers led by Istanbul University’s Burçin Tanık Öztürk decided to take a closer look at two well-known OCs—Czernik 41, discovered in 1966, and NGC 1,342, dubbed the Stingray Cluster, which was identified by William Herschel in 1799. For this purpose, they employed the T100 telescope at the TUBITAK National Observatory in Turkey and analyzed the data from the Gaia satellite.
An international team of astronomers has uncovered new evidence to explain how pulsing remnants of exploded stars interact with surrounding matter deep in the cosmos, using observations from NASA’s IXPE (Imaging X-ray Polarimetry Explorer) and other telescopes.
Scientists based in the U.S., Italy, and Spain, set their sights on a mysterious cosmic duo called PSR J1023+0038, or J1023 for short. The J1023 system is comprised of a rapidly rotating neutron star feeding off of its low-mass companion star, which has created an accretion disk around the neutron star. This neutron star is also a pulsar, emitting powerful twin beams of light from its opposing magnetic poles as it rotates, spinning like a lighthouse beacon.
The J1023 system is rare and valuable to study because the pulsar transitions clearly between its active state, in which it feeds off its companion star, and a more dormant state, when it emits detectable pulsations as radio waves. This makes it a “transitional millisecond pulsar.”
WASHINGTON — The U.S. Space Force estimates it would need more than $4 billion to fund a proliferated low Earth orbit constellation known as MILNET that would provide global communications services, making it the largest item in the service’s fiscal year 2026 “unfunded priorities list” submitted to Congress last week.
Researchers at The University of Osaka have developed a novel method for generating ultra-high magnetic fields via laser-driven implosions of blade-structured microtubes. This method achieves field strengths approaching one megatesla—a breakthrough in compact, high-field plasma science.
Ultrastrong magnetic fields approaching the megatesla regime—comparable to those found near strongly magnetized neutron stars or astrophysical jets —have now been demonstrated in theory using a compact, laser-driven setup.
A team led by Professor Masakatsu Murakami at The University of Osaka has proposed and simulated a unique scheme that uses micron-sized hollow cylinders with internal blades to achieve these field levels. The research is published in the journal Physics of Plasmas.
Space Renaissance International (SRI) wants to celebrate the 50th Anniversary of the historical Apollo-Sojuz Rendezvous, occurred the 17 July 1975!
During the cold war age, American astronauts and Russian cosmonauts gave a beautiful example of friendship and collaboration. Space culture demonstrated to be very much higher than terrestrial warmongering attitude! And such a distinctive cultural tract was demonstrated even later, with the MIR space station and then the ISS. Up to our present days, when the need of an higher Peace Culture is more urgent than ever.
Bernard Foing (SRI President), Jerry Stone, Werner Grandl, Marie-Luise Heuser, and others, will celebrate and share their thoughts about this historical Anniversary.
SRI invites All to celebrate with us!
A detailed analysis of a stellar cluster has led to a possible explanation for several fast-moving runaway stars around the cluster.
The “altercation” happened 50,000 years ago: The binary star Mel 34 was ejected from a young star cluster at a speed of 100,000 mph (46 km/s)—the result of a violent interaction that seemed buried in the cosmic past. But a group of astronomy detectives has now reconstructed part of the cluster’s history and identified a five-star smashup as the most likely cause for Mel 34’s high-speed departure [1]. This unlikely collision offers important information about the fate of young, massive stars.
The star cluster R136 is a grouping of around 60,000 stars in the Large Magellanic Cloud, a small galaxy 160,000 light-years from Earth. The cluster is about 2 million years old, which is fairly young as clusters go. “R136 is very special because it’s the youngest and the most massive star cluster in the local group of galaxies,” says Simon Portegies Zwart from Leiden University in the Netherlands. Previous studies of R136 have identified several dozen “runaway” stars that have been kicked out of the cluster. Runaways are common around clusters, but their origins are not always clear. R136 is young, so it’s a good place to study the process that produces runaways, Portegies Zwart says.