Astronomers observe subpulse drifting and nulling of pulsar PSR J0026–1955
Using the upgraded Giant Meterwave Radio Telescope (uGMRT), astronomers from India and Australia have performed radio observations of a pulsar known as PSR J0026–1955. Results of the observational campaign, published July 5 on the preprint server a.....»»
New analysis of Webb data measures universe expansion rate, finds there may not be a "Hubble tension"
We know many things about our universe, but astronomers are still debating exactly how fast it is expanding. In fact, over the past two decades, two major ways to measure this number—known as the "Hubble constant" —have come up with different ans.....»»
New massive eccentric brown dwarf discovered
An international team of astronomers has reported the discovery of a new brown dwarf, which received designation TOI-2490 b. The newfound object is about 74 times more massive than Jupiter and orbits a sun-like star on a highly eccentric orbit. The f.....»»
Astronomers find galaxies in denser environments are as much as 25% larger than those in less dense regions
A team of astronomers using a Yale supercomputer have determined for the first time that galaxies in denser environments are as much as 25% larger than their counterparts in less dense regions of the universe......»»
Astronomers detect a blazar exhibiting sinusoidal radio variability
An international team of astronomers reports the detection of a blazar with highly significant sinusoidal radio variability using the Owens Valley Radio Observatory (OVRO). The finding was detailed in a research paper published August 5 in the arXiv.....»»
Scientists observe first neutrinos with prototype detector
In a major step for the international Deep Underground Neutrino Experiment (DUNE), scientists have detected the first neutrinos using a DUNE prototype particle detector at the U.S. Department of Energy's Fermi National Accelerator Laboratory (Fermila.....»»
Astronomers ask public to help find newly formed black holes
The Dutch Black Hole Consortium has launched an eight-language version of the BlackHoleFinder app that citizens all over the world can use to help identify newly formed black holes. Previously, the app was only available in Dutch and English......»»
The universe on display: The powerful instruments that allow us to observe the cosmos
Starting today, the Earth will be passing through a meteor shower. But in astronomy, the human eye is very much a limited tool. But increasingly powerful instruments are allowing us to peer ever deeper into the cosmos and ever further back in time, s.....»»
Astronomers discover two new super-Earths orbiting nearby stars
Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has detected two new super-Earth exoplanets orbiting nearby M-dwarf stars. The newfound exoplanets, designated TOI-6002 b and TOI-5713 b, are two times la.....»»
Newly-discovered star could provide new insights into the evolution of stars
A new study published in The Astrophysical Journal, led by Assistant Professor of Astronomy Rana Ezzeddine and UF alumnus Jeremy Kowkabany, with collaborators, reports the discovery of a star that challenges astronomers' understanding of star evoluti.....»»
Astronomers discover new supergiant-rich stellar cluster
Astronomers report the discovery of a new galactic stellar cluster located some 24,000 light years away. The newfound cluster, which received the designation Barbá 2, turns out to host at least several supergiant stars. The finding was detailed in a.....»»
Scientists pin down the origins of the moon"s tenuous atmosphere
While the moon lacks any breathable air, it does host a barely-there atmosphere. Since the 1980s, astronomers have observed a very thin layer of atoms bouncing over the moon's surface. This delicate atmosphere—technically known as an "exosphere"—.....»»
Astronomers use AI to find elusive stars "gobbling up" planets
Astronomers have recently found hundreds of "polluted" white dwarf stars in our home galaxy, the Milky Way. These are white dwarfs caught actively consuming planets in their orbit. They are a valuable resource for studying the interiors of these dist.....»»
TIC 441725813 is a hybrid pulsating subdwarf star, study finds
Astronomers have employed NASA's Transiting Exoplanet Survey Satellite (TESS) to observe a subdwarf star designated TIC 441725813. In result, they found that TIC 441725813 is a hybrid hot B subdwarf pulsator. The discovery was detailed in a research.....»»
Experiment uses quantum techniques to stimulate photons, enhancing search for dark matter
Scientists cannot observe dark matter directly, so to "see" it, they look for signals that it has interacted with other matter by creating a visible photon. However, signals from dark matter are incredibly weak. If scientists can make a particle dete.....»»
How Kepler’s 400-year-old sunspot sketches helped solve a modern mystery
A sharp decline in sunspot activity in the 17th century has long puzzled astronomers. Enlarge / A naked-eye sunspot group on May 11, 2024. There are typically 40,000 to 50,000 sunspots observed in ~11-year solar cycles. (credit:.....»»
Astronomers explain rapid formation of organic macromolecules in protoplanetary disks around young stars
An international team of researchers led by the University of Bern has used observation-based computer modeling to find an explanation for how macromolecules can form in a short time in disks of gas and dust around young stars. These findings could b.....»»
Paris Olympics: Canada"s soccer drone scandal highlights the need for ethics education
The Canadian women's soccer team has become the center of controversy after reports from the 2024 Paris Olympics revealed the team used a drone to observe the New Zealand soccer team's training sessions. That has led to New Zealand's team lodging a f.....»»
Globular cluster NGC 6558 explored with Gemini Observatory and Hubble Space Telescope
Using the Gemini Observatory and the Hubble Space Telescope (HST), an international team of astronomers has investigated a Galactic globular cluster known as NGC 6558. Results of the new study, published July 22 on the pre-print server arXiv, deliver.....»»
Astronomers find first emission spectra in brightest GRB of all time
Chance that first detected emission line is a noise fluctuation is one in half a billion. Enlarge / A jet of particles moving at nearly light-speed emerges from a massive star in this artist’s concept of the BOAT. (credit: NASA.....»»
At the Olympics, AI is watching you
New system foreshadows a future where there are too many CCTV cameras for humans to physically watch. Enlarge / Police observe the Eiffel Tower from Trocadero ahead of the Paris 2024 Olympic Games on July 22, 2024. (credit: Hect.....»»