A new Nature study led by Max Planck Institute astrophysicist Sunmyon Chon simulated conditions in the early universe and found that rapidly forming black holes can generate light signatures matching the mysterious 'little red dots' seen by the James Webb Space Telescope. The team argues these objects quickly develop dense, thick gas disks that produce a strong hydrogen-alpha glow resembling what's observed in these ancient regions of space.
Astronomers led by Pablo Santos-Sanz used the James Webb Space Telescope to re-observe a stellar occultation by Chariklo, a small icy body about 250 kilometers wide orbiting between Saturn and Uranus. Compared to the rings first detected in 2013, one of Chariklo's two narrow rings has become denser while the other has nearly disappeared, and the cause remains unclear.
Astronomers analyzing James Webb Space Telescope data have identified an unusual celestial object that some researchers believe could be a so-called 'black hole star,' a rare hybrid where a black hole is enshrouded in thick gas that mimics stellar light. The classification remains tentative, with further observation needed to confirm whether the object fits this proposed new category.
NASA says a precise SpaceX Falcon Heavy launch and flawless early course correction have left the Nancy Grace Roman Space Telescope with enough propellant for at least 22 years of operations, more than double the mission's original five-year baseline plan. The $4.3 billion observatory launched August 30 from Kennedy Space Center and is now heading to its observation post to survey wide swaths of the sky with Hubble-level resolution.
A new brain-computer interface has for the first time simultaneously decoded a paralyzed user's intended speech and movement, converting brain signals into on-screen text while animating a personalized avatar within seconds, according to a Nature Neuroscience study. Separately, a review published in Psychological Medicine finds that reading for pleasure correlates with structural brain changes, better mental health, and lower risk of cognitive decline, with benefits strongest when reading starts young and is enjoyable rather than obligatory.
A team led by Xin Li at Westlake University identified an intermediate-mass black hole, roughly 35,000 times the sun's mass, sitting outside the star-forming disk of the dwarf galaxy UGCA 320, about 20 million light-years away. Hubble imaging and MUSE spectroscopy showing broad Balmer emission confirmed the object is actively accreting material as it drifts through the galaxy, dragging surrounding gas behind it.
NASA launched the Nancy Grace Roman Space Telescope on August 30, marking the first space telescope named after a woman. The mission, previously known as WFIRST, will study dark matter, dark energy, and exoplanets, continuing work in the field Roman helped establish as NASA's first chief of astronomy in 1959.
Astronomers using the Hubble Space Telescope have identified a ten-sided cloud formation encircling Saturn's south pole, a counterpart to the long-known hexagon at the planet's north pole. The decagon, detailed in a new Science Advances study, has sides roughly 16,800 kilometers long and sits near a jet stream blowing close to 260 miles per hour, even though the shape itself drifts at less than 6 mph.
A small group of theoretical physicists is reviving the decades-old idea that universes might evolve much like living organisms, selecting for traits that allow them to reproduce through black holes. The concept gained fresh attention after a 2022 James Webb Space Telescope discovery and a widely shared Substack essay reignited debate over whether Darwinian logic can apply beyond biology. Supporters argue that just as natural selection explains complexity in life, a similar process could explain the physical constants and structure of our cosmos.
Scientists at the LUX-ZEPLIN experiment, which uses 10 tonnes of liquid xenon buried in South Dakota's Sanford Underground Research Facility, recorded one unusual flash consistent with a WIMP particle striking a xenon nucleus. The result, described in a preprint that has not yet been peer-reviewed, is far from confirmed but has generated excitement because it could represent the long-sought direct detection of dark matter.
NASA launched the Nancy Grace Roman Space Telescope on 30 August aboard a SpaceX rocket, sending it roughly 1.5 million kilometres from Earth to begin observing the Universe. The telescope's 2.4-metre mirror, originally built for surveillance purposes and handed to NASA in 2012, was re-engineered for astronomy and paired with a 300-megapixel infrared camera capable of imaging patches of sky about 100 times larger than the Hubble Space Telescope can capture in one shot.
NASA is inviting people to sign up online for a personal 'pixel' from the first images captured by the Nancy Grace Roman Space Telescope. Each participant provides an email address, which is limited to one pixel per address, and later receives a printable certificate showing their assigned pixel number.
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