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James Webb Space Telescope

7 GoKawiil briefs on this topic

Simulations Suggest JWST's 'Little Red Dots' Are Infant Supermassive Black Holes

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.

Webb telescope shows Chariklo's rings shifting dramatically in a decade

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.

JWST Detects Unusual Object That May Be a 'Black Hole Star'

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's Roman Space Telescope carries fuel for 22 years, far exceeding 5-year design

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.

Nature briefing highlights new brain-reading BCI and reading's cognitive benefits

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.

Physicists Revisit 'Cosmological Natural Selection' Theory After JWST Findings

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.

NASA's Roman Space Telescope launches on SpaceX Falcon Heavy, ahead of schedule

NASA's $4.3 billion Nancy Grace Roman Space Telescope launched Sunday from Kennedy Space Center aboard a SpaceX Falcon Heavy rocket, bound for a location four times farther than the Moon. The observatory carries a 300-megapixel camera built with a repurposed spy satellite mirror and offers a field of view 100 times wider than Hubble's. It is only the second NASA-led astrophysics flagship mission launched this century, after Webb in 2021, and notably arrived at the pad ahead of its own deadline.