Watch the stars and from them learn. To the Master's honor all must turn, Each in its track, without a sound, Forever tracing Newton's ground

— Albert Einstein

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Astronomers Use a Double-Lensing Technique to Study a Supermassive Black Hole

Universe Today - Fri, 09/05/2025 - 1:29pm

An international team of astronomers led by Matus Rybak (Leiden University, Netherlands) has proven, thanks to accidental double zoom, that millimetre radiation is generated close to the core of a supermassive black hole. Their findings have been accepted for publication in the journal Astronomy & Astrophysics.

Categories: Astronomy

The Butterfly Star And Its Planet-Forming Disk

Universe Today - Fri, 09/05/2025 - 1:29pm

The so-called Butterfly star gets its name from its edge-on appearance. The star's protoplanetary disk blocks out starlight revealing a nebula, or butterfly wing, on each side. Deeper JWST observations show the disk is tilted and asymmetrical, which affects how planets form.

Categories: Astronomy

Ionic Liquids Could Form Naturally And Replace Water As A Biological Solvent

Universe Today - Fri, 09/05/2025 - 1:29pm

Water is key to life as we know it. But that doesn’t mean its key to life everywhere. Despite the fact that the ability to house liquid water is one of the key characteristics we look for in potentially habitable exoplanets, there is nothing written in stone about the fact that life has to use water as a solvent as opposed to other liquid options. A new paper from researchers at MIT, including those who are developing missions to look for life on Venus, shows there might be an alternative - ionic liquids that can form and stay stable in really harsh conditions.

Categories: Astronomy

Webb's Images of Early Galaxies are Providing Fresh Insights into the Early Universe

Universe Today - Fri, 09/05/2025 - 1:29pm

Images taken with the MIRI infrared camera on the James Webb Space Telescope (JWST) have made it possible to observe the first galaxies in long-wavelength infrared light for the first time. Alongside a recent study published in Astronomy and Astrophysics, these images provide new insights into how the first galaxies formed over 13 billion years ago.

Categories: Astronomy

Chandra Peers Into A Supernova's Troubled Heart

Universe Today - Fri, 09/05/2025 - 1:29pm

NASA's Chandra Reveals Star's Inner Conflict Before Explosion - https://chandra.si.edu/press/25_releases/press_082825.html

Categories: Astronomy

Metals Are Critical To Life - We Should Screen Exoplanets For Them

Universe Today - Fri, 09/05/2025 - 1:29pm

Life is complicated, and not just in a philosophical sense. But one simple thing we know about life is that it requires energy, and to get that energy it needs certain fundamental elements. A new paper in preprint on arXiv from Giovanni Covone and Donato Giovannelli from the University of Naples discusses how we might use that constraint to narrow our search for stars and planets that could potentially harbor life. To put it simply, if it doesn’t have many of the constituent parts of the “building blocks” of life, then life probably doesn't exist there.

Categories: Astronomy

Cosmic Butterfly Unlocks Secrets of How Rocky Planets Form

Universe Today - Fri, 09/05/2025 - 1:29pm

Deep in the constellation Scorpius, about 3,400 light years from Earth, a spectacular cosmic butterfly is revealing fundamental secrets about how worlds like our own came to exist. Using the James Webb Space Telescope, astronomers have peered into the heart of the Butterfly Nebula and discovered clues that could transform our understanding of rocky planet formation.

Categories: Astronomy

Photochemistry and Climate Modeling of Earth-like Exoplanets

Universe Today - Fri, 09/05/2025 - 1:29pm

What role can the relationship between oxygen (O2) and ozone (O3) in exoplanet atmospheres have on detecting biosignatures? This is what a recent study submitted to Astronomy & Astrophysics hopes to address as an international team of researchers investigated novel methods for identifying and analyzing Earth-like atmospheres. This study has the potential to help scientists develop new methods for identifying exoplanet biosignatures, and potentially life as we know it.

Categories: Astronomy

Scientists Solve the Mystery of Why Similar Asteroids Look Different Colours

Universe Today - Fri, 09/05/2025 - 1:29pm

When NASA's OSIRIS-REx spacecraft returned from its mission to asteroid Bennu in 2023, it brought back more than just ancient space rocks, it delivered answers to puzzles that have baffled astronomers for years. Among the most intriguing questions was why asteroids that should look identical through telescopes appear strikingly different colours from Earth.

Categories: Astronomy

What Technosignatures Would Interstellar Objects Have?

Universe Today - Fri, 09/05/2025 - 1:29pm

The recent discovery of the third known interstellar object (ISO), 3I/ATLAS, has brought about another round of debate on whether these objects could potentially be technological in origin. Everything from random YouTube channels to tenured Harvard professors have thoughts about whether ISOs might actually be spaceships, but the general consensus of the scientific community is that they aren’t. Overturning that consensus would require a lot of “extraordinary evidence”, and a new paper led by James Davenport at the DiRAC Institute at the University of Washington lays out some of the ways that astronomers could collect that evidence for either the current ISO or any new ones we might find.

Categories: Astronomy

3I/ATLAS's Coma Is Largely Carbon Dioxide

Universe Today - Fri, 09/05/2025 - 1:29pm

All (or at least most) astronomical eyes are on 3I/ATLAS, our most recent interstellar visitor that was discovered in early July. Given its relatively short observational window in our solar system, and especially its impending perihelion in October, a lot of observational power has been directed towards it. That includes the most powerful space telescope of them all - and a recent paper pre-printed on arXiv describes what the James Webb Space Telescope (JWST) discovered in the comet’s coma. It wasn’t like any other it had seen before.

Categories: Astronomy

Scientists Crack the Code of the Galaxy's Most Mysterious Steam Worlds

Universe Today - Fri, 09/05/2025 - 1:29pm

Imagine worlds where water exists in forms so exotic that they defy our everyday understanding of matter, where the familiar liquid we drink every day transforms into something that behaves like neither gas nor liquid. These aren't science fiction fantasies, but real planets that represent some of the most common worlds in our Galaxy, and scientists at UC Santa Cruz have just developed new models to understand them.

Categories: Astronomy

New Insights into Coronal Heating and Solar Wind Acceleration

Universe Today - Fri, 09/05/2025 - 1:29pm

What processes are responsible for our Sun’s solar wind, heat, and energy? This is what a recent study published in Physical Review X hopes to address as a team of researchers presented evidence for a newly discovered type of barrier that the Sun exhibits that could help explain the transfer of energy to heat within the Sun’s outer atmosphere. This study has the potential to help scientists better understand the underlying mechanisms for what drives our Sun and what this could mean for learning about other suns throughout the cosmos.

Categories: Astronomy

Possible galaxy spotted by JWST could be the earliest we've ever seen

New Scientist Space - Cosmology - Fri, 09/05/2025 - 1:00pm
A possible galaxy named Capotauro may have formed within 90 million years of the big bang – but astronomers can’t be sure that’s what it is
Categories: Astronomy

Possible galaxy spotted by JWST could be the earliest we've ever seen

New Scientist Space - Space Headlines - Fri, 09/05/2025 - 1:00pm
A possible galaxy named Capotauro may have formed within 90 million years of the big bang – but astronomers can’t be sure that’s what it is
Categories: Astronomy

This Gloriously Weird Fish Has Teeth on Its Forehead for Sex

Scientific American.com - Fri, 09/05/2025 - 12:30pm

Researchers have finally traced the origin of the spotted ratfish’s bizarre forehead teeth, which are used for mating

Categories: Astronomy

Baby pterosaurs could fly right after hatching – but crashed in storms

New Scientist Space - Cosmology - Fri, 09/05/2025 - 12:00pm
Two fossils found in Germany show very young pterodactyls with arm bones thought to have been broken in flight, probably because of severe tropical cyclones
Categories: Astronomy

Baby pterosaurs could fly right after hatching – but crashed in storms

New Scientist Space - Space Headlines - Fri, 09/05/2025 - 12:00pm
Two fossils found in Germany show very young pterodactyls with arm bones thought to have been broken in flight, probably because of severe tropical cyclones
Categories: Astronomy

A modified hot glue gun can mend broken bones

New Scientist Space - Cosmology - Fri, 09/05/2025 - 12:00pm
A biodegradable glue that encourages bones to repair themselves can be applied during surgery using a hot glue gun, potentially offering a cheap and quick way to treat injuries
Categories: Astronomy

A modified hot glue gun can mend broken bones

New Scientist Space - Space Headlines - Fri, 09/05/2025 - 12:00pm
A biodegradable glue that encourages bones to repair themselves can be applied during surgery using a hot glue gun, potentially offering a cheap and quick way to treat injuries
Categories: Astronomy