Even galaxies recycle
A quasar ejected the remains of stars, but another galaxy sucked them back in. Enlarge / A quasar ejects a jet of material into intergalactic space. (credit: J. A. Biretta et al., Hubble Heritage Team) On Earth, recyclin.....»»
Daily Telescope: A new Webb image reveals a cosmos full of galaxies
See a galaxy as it was just 430 million years after the Big Bang. Enlarge / This image from Webb’s NIRCam (Near-Infrared Camera) instrument shows a portion of the GOODS-North field of galaxies. (credit: NASA, ESA, CSA, STScI,.....»»
What makes black holes grow and new stars form? Machine learning helps solve the mystery
When they are active, supermassive black holes play a crucial role in the way galaxies evolve. Until now, growth was thought to be triggered by the violent collision of two galaxies followed by their merger; however, new research led by the Universit.....»»
Jaw-dropping Webb photo reveals how the universe turned its lights on
Scientists used the James Webb Space Telescope to view some of the earliest galaxies in the universe, revealing how these objects may have cleared cosmic gas and ended the Dark Ages. The universe was once stuck in the Dark Ages.It was time when.....»»
A black hole discovery could force us to rethink how galaxies came to be
Peering deep into the infancy of the universe, the European Southern Observatory's Very Large Telescope (VLT) recently confirmed the discovery of the brightest and fastest growing quasar. Quasars are luminous objects in the night sky powered by gas f.....»»
Webb finds dwarf galaxies reionized the universe
Using the unprecedented capabilities of the NASA/ESA/CSA James Webb Space Telescope, an international team of scientists has obtained the first spectroscopic observations of the faintest galaxies during the first billion years of the universe. These.....»»
Astronomers observe the effect of dark matter on the evolution of the galaxies
Dark matter comprises around 85% of all the matter in the universe. Although ordinary matter absorbs, reflects and emits light, dark matter cannot be seen directly, which makes its detection difficult. Its existence is inferred from its gravitational.....»»
Polymer science team develops additive that can "upcycle" a wide range of plastics
One doesn't need to be reminded that plastic production, and plastic pollution, have steadily increased over the years—the evidence is all around us. What if we were able to recycle plastic in a way that is truly sustainable?.....»»
JWST sees a Milky Way-like galaxy coming together in the early universe
The gigantic galaxies we see in the universe today, including our own Milky Way galaxy, started out far smaller. Mergers throughout the universe's 13.7 billion years gradually assembled today's massive galaxies. But they may have begun as mere star c.....»»
An environmentally friendly way to turn seafood waste into value-added products
Reduce, reuse, recycle, and repurpose: These are all ways we can live more sustainably. One tricky aspect of recycling, though, is that sometimes the recycling process is chemically intensive, and this is the case for recycling one of the world's mos.....»»
Black hole fashions stellar beads on a string
Astronomers have discovered one of the most powerful eruptions from a black hole ever recorded. This mega-explosion billions of years ago may help explain the formation of a striking pattern of star clusters around two massive galaxies, resembling be.....»»
Even if we can"t see the first stars, we could detect their impact on the first galaxies
For a long time, our understanding of the universe's first galaxies leaned heavily on theory. The light from that age only reached us after traveling for billions of years, and on the way, it was obscured and stretched into the infrared. Clues about.....»»
"Beyond what"s possible": New JWST observations unearth mysterious ancient galaxy
Our understanding of how galaxies form and the nature of dark matter could be completely upended after new observations of a stellar population bigger than the Milky Way from more than 11 billion years ago that should not exist......»»
New NASA mission will study ultraviolet sky, stars, stellar explosions
As NASA explores the unknown in air and space, a new mission to survey ultraviolet light across the entire sky will provide the agency with more insight into how galaxies and stars evolve. The space telescope, called UVEX (UltraViolet EXplorer), is t.....»»
Discovery of unexpected ultramassive galaxies may not rewrite cosmology, but still leaves questions
Ever since the James Webb Space Telescope (JWST) captured its first glimpse of the early universe, astronomers have been surprised by the presence of what appear to be more "ultramassive" galaxies than expected. Based on the most widely accepted cosm.....»»
Image: Spiral galaxy NGC 4254"s dazzling swirls
NGC 4254, a spiral galaxy, is resplendent in orange and blue in this Jan. 29, 2024, image from the James Webb Space Telescope. This is one of 19 nearby spiral galaxies recently imaged by the telescope as part of the long-standing Physics at High Angu.....»»
Which came first: Black holes or galaxies?
Black holes not only existed at the dawn of time, they birthed new stars and supercharged galaxy formation, a new analysis of James Webb Space Telescope data suggests......»»
Hubble spies baby stars being born amid chaos of interacting galaxies
Amid swirling gas and dust pulled by gravitational forces of interacting galaxies, there can be bursts of star formation, creating new generations of stars......»»
Hubble detects celestial "string of pearls" star clusters in galaxy collisions
When spectacular cosmic events such as galaxy collisions occur, it sets off a reaction to form new stars, and possibly new planets that otherwise would not have formed. The gravitational pull that forces the collisions between these galaxies creates.....»»
The 5 best telescopes for viewing planets and galaxies in 2024
Of all the objects that you can view through a telescope, some of the most stunning to behold are the planets in our solar system, and the galaxies that lie far beyond it. But if you want to see more distant and fainter objects, you’ll need a d.....»»
Dark matter might help explain how supermassive black holes can merge
Although the exact nature of dark matter continues to elude astronomers, we have gained some understanding of its general physical properties. We know how it clusters around galaxies, how it makes up much of the matter in the universe, and even how i.....»»