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Category: space – Page 7

AI Cybersecurity Access Tiers: Who Gets The Best AI?

OpenAI’s new Daybreak Red tier gives approved defenders a model that completes 95% of advanced exploit-development requests, versus roughly 2% for the public version of the same base model. That gap is now the real story: AI cybersecurity access tiers decide who gets frontier defensive power and who doesn’t, and access runs through a partner list, not a price tag.

AI cybersecurity access tiers stopped being a theoretical debate this month. OpenAI expanded its Daybreak program into two levels, Blue and Red, and released GPT-5.6-Cyber, a specialized model built specifically for vulnerability research and exploit-chain development, according to SecurityBrief’s coverage of the launch. In an internal OpenAI evaluation, the new model completed 95.0% of advanced cyber requests covering authentication bypass, privilege escalation, and exploit-chain development, compared with 1.5% for the general-release model and 2.0% for that same model through the safeguarded Daybreak Blue tier.

GPT-5.6-Cyber is only available through Daybreak Red, gated behind identity verification, monitoring, legal attestations, and approved-use restrictions, per Cyberpress’s reporting. Under OpenAI’s own Preparedness Framework, the model was rated “High” for cybersecurity capability, one step below the “Critical” threshold that recently triggered an internal suspension of a different unreleased model, Astra, on August 7. These AI cybersecurity access tiers exist because the underlying capability is real: a general-purpose model built to refuse exploit-writing requests is far less useful to a security team validating a patch than one built to complete them.

Miniaturized Laser System Enables Record Flux in Microgravity

Scientists produce atomic quantum gas mixtures with unprecedented particle flux to test fundamental physics in space.

NASA’s IXPE May Have Proven 90-Year-Old Theory

Scientists using NASA’s IXPE (Imaging X-ray Polarimetry Explorer) conducted more than 140 hours of observations of the magnetar 1E 1547–5408 between March and April 2025 alongside NASA’s NICER (Neutron Star Interior Composition Explorer) and Murriyang, CSIRO’s Parkes radio telescope, owned and operated by Australia’s national science agency. This was the first-ever coordinated radio and X-ray polarization measurement of a magnetar.

1E 1547–5408, spinning in a full rotation every 2 seconds, is a unique magnetar that consistently emits bright radio energy and X-ray light, for reasons scientists are still trying to understand.

Observations showed the polarization, or the orientation and level of alignment of the incoming photons, is nearly three times greater than seen in similar sources. This high level of polarization was surprising, since the geometry of the magnetar’s magnetic fields suggest that the measurements we see should be close to zero at certain points in the star. Standard surface emission models do not explain this large value either, indicating that another effect must be boosting the polarization.

Perseverance rover captures Mars vista as clear as day

The imaging team of NASA’s Perseverance Mars rover has taken advantage of clear skies on the red planet to capture one of the sharpest panoramas of its mission so far. Visible in the mosaic, which was stitched together from 96 images taken at a location the science team calls “Falbreen,” are a rock that appears to lie on top of a sand ripple, a boundary line between two geologic units, and hills as distant as 40 miles (65 kilometers) away. The enhanced-color version shows the Martian sky to be remarkably clear and deceptively blue, while in the natural-color version, it’s reddish.

“Our bold push for human space exploration will send astronauts back to the moon,” said Sean Duffy, acting NASA administrator. “Stunning vistas like that of Falbreen, captured by our Perseverance rover, are just a glimpse of what we’ll soon witness with our own eyes. NASA’s groundbreaking missions, starting with Artemis, will propel our unstoppable journey to take human space exploration to the Martian surface. NASA is continuing to get bolder and stronger.”

The rover’s Mastcam-Z instrument captured the images on May 26, 2025, the 1,516th Martian day, or sol, of Perseverance’s mission, which began in February 2021 on the floor of Jezero Crater. Perseverance reached the top of the crater rim late last year.

Decoding the History Recorded in Lunar Soil

A model that captures how crater-forming impacts redistribute lunar dirt will help researchers read the cosmic timeline found in samples returned from the Moon.

The Moon’s soil preserves signatures of the solar wind, cosmic rays, and episodic stellar events, but frequent meteorite strikes scramble what would otherwise be a neatly layered record of cosmic history. Researchers have now developed a mathematical model that accounts for this scrambling effect in lunar soil [1]. The model can predict the depths and concentrations of radioactive isotopes originating from astrophysical events hundreds of light-years away. It provides a guide for future lunar sampling missions that will search for evidence of specific events in our Solar System’s history.

Samples returned from the Apollo missions suggest that irradiation and the solar wind alter the lunar surface soil’s chemistry and physical appearance as it ages. In addition, nearby supernovae emit radioactive isotopes, including short-lived ones such as iron-60. Meanwhile, meteorite impacts mix all this surface material and gradually transport it deep into the soil or upward from below in a process known as impact gardening. But models of this transport often fail to capture key features observed in the Apollo samples. For example, analysis of core samples (long, vertical cylinders of soil) suggest that, in some cases, the concentrations of certain isotopes have much steeper depth dependence than models predict.

Hybrid energy system: One roof for electricity, heating and cooling

Photovoltaic panels generate electricity, solar thermal collectors provide heat, while cooling is usually supplied by air conditioning systems that themselves consume electricity. As a result, buildings require different technologies competing for the limited space available on roofs and facades.

A solution developed by a team led by Dr. Gan Huang at KIT’s Institute of Microstructure Technology, by contrast, simultaneously provides cooling, electricity and heating from a single surface. This hybrid PDRC-solar system combines photovoltaic and solar thermal technologies with passive daytime radiative cooling (PDRC). The researchers see applications wherever cooling and energy are required simultaneously.

The study is published in the journal Cell Reports Physical Science.

“Entirely Surprising” — Scientists Have Found a Martian Meteorite Unlike Any Known Before

A meteorite found in Algeria has opened a rare window into nearly 2 billion years of Mars’ history that had largely been missing from the geological record.

Researchers at Boston College have determined that Northwest Africa (NWA) 13,441, a rock blasted from Mars before eventually reaching Earth, crystallized about 1.273 billion years ago. Its age places it squarely within a huge gap in the known record of shergottites, the most common type of Martian igneous meteorite. Even more unexpectedly, its chemistry points to a deep Martian source unlike any previously identified in this group.

“The characteristics of this meteorite were entirely surprising,” said Ethan Baxter, a Boston College professor of Earth and Environmental Sciences and founder of the university’s Center for Isotope Geochemistry. “No other Martian meteorite like this has an age of 1.27 billion years.”

Curiosity Mars rover discovers field of honeycomb textures

As NASA’s Curiosity rover recently began climbing a Martian valley nicknamed “Valle Grande,” it sent back images that were a familiar sight to mission scientists: honeycomb-like textures called polygonal fractures, each about 1.5–3 inches (4–8 centimeters) across. The mission has spotted small patches of these geometric shapes several times before, but nothing at the scale discovered in Valle Grande.

In a 360-degree panorama that the rover captured on June 19 and 20, the 4,930th and 4,931st Martian days, or sols, of the mission, the polygonal shapes spread in all directions for as far as the rover can see. They even wrap around the sides of a nearby butte nicknamed “Miraflores,” which stands 20 feet (6 meters) tall and is topped with a thick cap of sand.

“We’ve seen a lot of fascinating landscapes through Curiosity’s eyes, but this sea of polygons took our breath away,” said the mission’s project scientist, Ashwin Vasavada of NASA’s Jet Propulsion Laboratory in Southern California. “We measured their shapes and chemistry carefully and are hopeful there are clues in the data as to how these features formed.”

TESS discovers a rare brown dwarf orbiting a massive, aging star

For decades, astronomers lumped brown dwarfs into a single category defined by mass alone—too big to be classified as planets but too small to become stars. However, this definition ignores the two very different mechanisms that can form them: the direct collapse of gas clouds and formation within the accretion disks of massive stars.

Through a new analysis of NASA’s Transiting Exoplanet Survey Satellite (TESS), astronomers led by Nino Ephremidze at Harvard University have made the clearest observation to date of a brown dwarf in orbit around a massive, aging star, potentially offering important new clues about how these planet-like bodies form. Their results have been posted to the arXiv preprint server.

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