Halley’s Comet wrongly named: 11th-century English monk predates British astronomer

The British astronomer and mathematician Edmond Halley was not, after all, the first to understand the cycle of the comet that now bears his name. This is shown by research conducted by, among others, Professor Simon Portegies Zwart. It was the monk Eilmer of Malmesbury who, as early as the 11th century, linked two observations […]

Multiwavelength variability reveals dust structure in quasars

A research team has investigated quasar variability by tracking optical to mid-infrared (MIR) wavelengths of variability information. This multiband joint analysis provides an opportunity to probe the dust structure in the quasar’s central region and holds promise for revealing key properties such as its scale and distribution. It offers crucial observational evidence for refining the […]

Astrophysicists discover largest sulfur-containing molecular compound in space

Researchers at the Max Planck Institute for Extraterrestrial Physics (MPE), in collaboration with astrophysicists from the Centro de Astrobiología (CAB), CSIC-INTA, have identified the largest sulfur-bearing molecule ever found in space: 2,5-cyclohexadiene-1-thione (C₆H₆S). They made this breakthrough by combining laboratory experiments with astronomical observations. The molecule resides in the molecular cloud G+0.693–0.027, about 27,000 light-years […]

Particle permutation task can be tackled by quantum but not classical computers, study finds

Quantum computers, systems that process information leveraging quantum mechanical effects, are expected to outperform classical computers on some complex tasks. Over the past few decades, many physicists and quantum engineers have tried to demonstrate the advantages of quantum systems over their classical counterparts on specific types of computations.

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Calif. sheriff warns bystanders approaching scenes to record video: ‘Bullets can be very unforgiving’

San Benito Sheriff Eric Taylor responded to bystander behavior during a pursuit and OIS, saying his officers were instructed to stop “herding” intrusive bystanders to safety

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‘Until you’re in that mix, you can’t tell me anything’: Uvalde school officer speaks out after acquittal

Former Uvalde School District officer Adrian Gonzales said that he does not regret his actions during the shooting at Robb Elementary, noting he was under orders to retreat

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Video: Ark. trooper fired after performing PIT maneuver on wrong vehicle during pursuit

Arkansas State Police stated the trooper lost sight of the vehicle he was pursuing after that suspect fled a traffic stop; he used a tactical vehicle intervention to stop a similar vehicle

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N.C. sheriff’s office recruit dies during training 10 days after being hired

Cadet Ryan Phillip Ferreira appeared to suffer a medical emergency during a physical abilities course, the Jackson County Sheriff’s Office stated

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Archaeologists uncover secret ‘passage to the underworld’ at Pyramid of the Moon in Teotihuacan

The mystery surrounding the ancient city of Teotihuacan in Mexico continues to unfold after archaeologists found a hidden tunnel beneath the Pyramid of the Moon that they believe was built to represent the “passage to the underworld.”

Over 2000 years ago in 300 BC, Mesoamerican peoples began to develop larger settlements and built this […]

NASA head Isaacman tempers Artemis praise with ideas on the program’s future

Even as NASA celebrated the rollout of the Space Launch System rocket and Orion spacecraft for Artemis II over the weekend, NASA’s new administrator, Jared Isaacman, made sure to put an asterisk on the program’s future.

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Hubble uncovers the secret of blue straggler stars that defy aging

Some stars appear to defy time itself. Nestled within ancient star clusters, they shine bluer and brighter than their neighbors, looking far younger than their true age. Known as blue straggler stars, these stellar oddities have puzzled astronomers for more than 70 years. Now, new results using the NASA/ESA Hubble Space Telescope are finally revealing […]

NASA and families of fallen astronauts mark 40th anniversary of space shuttle Challenger accident

Families of the astronauts lost in the space shuttle Challenger accident gathered back at the launch site Thursday to mark that tragic day 40 years ago.

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Accessing water on Mars: Examining the best technologies for future missions

A new study has examined how future human missions to Mars could access one of the planet’s most vital resources—water. The “Martian aqua: occurrence of water and appraisal of acquisition technologies” paper, published in the Advances in Space Research journal, presents a comparative analysis of potential water acquisition technologies for use on the red planet. […]

Seismometer networks could track space junk as it falls to Earth

Space debris—the thousands of pieces of human-made objects abandoned in Earth’s orbit—pose a risk to humans when they fall to the ground. To locate possible crash sites, a Johns Hopkins University scientist has helped to devise a way to track falling debris using existing networks of earthquake-detecting seismometers.

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New code connects microscopic insights to the macroscopic world

In inertial confinement fusion, a capsule of fuel begins at temperatures near zero and pressures close to vacuum. When lasers compress that fuel to trigger fusion, the material heats up to millions of degrees and reaches pressures similar to the core of the sun. That process happens within a miniscule amount of space and time. […]