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Astronomy news
Asteroid 2024 YR may not hit Earth in 2032, but it—and others—will keep coming back
In late 2024, astronomers spotted asteroid 2024 YR4 on a trajectory that could potentially threaten Earth. This observation triggered a fervid series of observations of the object—possibly as big as a football field—to ...
Astronomy
58 minutes ago
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AI reshapes how we observe the stars
AI tools are transforming how we observe the world around us—and even the stars beyond. Recently, an international team proved that deep learning techniques and large language models can help astronomers classify stars ...
Astronomy
1 hour ago
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Event Horizon Telescope allows close study of accelerating jets from black holes
An international team of researchers used multi-wavelength observations of active galactic nuclei to study how black holes launch relativistic jets. The sixteen sources were observed with the Event Horizon Telescope during ...
Astronomy
2 hours ago
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Astronomers discover new giant molecular cloud in the Milky Way
Using the Green Bank Telescope (GBT), astronomers have detected a new giant molecular cloud in the Milky Way galaxy. The newfound cloud has a size of nearly 200 light years and its mass is estimated to be some 160,000 solar ...
Bridging the gap between the cosmic microwave background and the first galaxies
One of the Holy Grails in cosmology is a look back at the earliest epochs of cosmic history. Unfortunately, the universe's first few hundred thousand years are shrouded in an impenetrable fog. So far, nobody's been able to ...
Astronomy
Mar 23, 2025
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Astronomers unveil 'baby pictures' of the first stars and galaxies
The clearest and most precise images yet of the universe in its infancy—the earliest cosmic time accessible to humans—have been produced by an international team of astronomers.
Astronomy
Mar 23, 2025
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Euclid opens data treasure trove, offers glimpse of deep fields
On 19 March 2025, the European Space Agency's Euclid mission releases its first batch of survey data, including a preview of its deep fields. Here, hundreds of thousands of galaxies in different shapes and sizes take center ...
Astronomy
Mar 22, 2025
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Webb telescope directly observes exoplanet CO₂ for first time
The James Webb Space Telescope has directly observed the key chemical of carbon dioxide in planets outside of our solar system for the first time, scientists announced Monday.
Astronomy
Mar 22, 2025
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SPHEREx telescope aims to unlock secrets of universe's first moments
On March 11, NASA launched a new space telescope into orbit to explore the origins of the universe. The mission will use sophisticated software, developed at the Arizona Cosmology Lab at the University of Arizona, to analyze ...
Astronomy
Mar 22, 2025
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Extremely Large Telescope could sense hints of life at Proxima Centauri in just 10 hours, simulations suggest
The Extremely Large Telescope (ELT), currently under construction in northern Chile, will give us a better view of the Milky Way than any ground-based telescope before it. It's difficult to overstate how transformative it ...
Astronomy
Mar 21, 2025
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A simulated universe works better when dark energy changes over time
Dark energy is a mystery so daunting that it stretches and strains our most robust theories. The universe is expanding, driven by the unknown force that we've named Dark Energy. Dark Energy is also accelerating the rate of ...
Astronomy
Mar 21, 2025
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Cosmic anomaly hints at frightening future for Milky Way
A terrifying glimpse at one potential fate of our Milky Way galaxy has come to light thanks to the discovery of a cosmic anomaly that challenges our understanding of the universe.
Astronomy
Mar 21, 2025
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Hubble sees a spiral and a star in the constellation Virgo
This NASA/ESA Hubble Space Telescope image features a sparkling spiral galaxy paired with a prominent star, both in the constellation Virgo. While the galaxy and the star appear to be close to one another, even overlapping, ...
Astronomy
Mar 20, 2025
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Astronomers discover 2,674 dwarf galaxies using Euclid telescope
ESA's Euclid space telescope has been providing valuable data from the depths of space for almost two years. With its help, the largest and most accurate 3D map of the universe to date is to be created, with billions of stars ...
Astronomy
Mar 20, 2025
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Concept for interstellar object encounters developed, then simulated using a spacecraft swarm
Interstellar objects are among the last unexplored classes of solar system objects, holding tantalizing information about primitive materials from exoplanetary star systems. They pass through our solar system only once in ...
Astronomy
Mar 20, 2025
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Would we know if a supernova was about to hit the Earth?
We know that regular supernovas pose no existential threat to life on Earth in the near-term. But there are other varieties of supernova that are a little bit harder to predict, and a little bit harder to spot.
Astronomy
Mar 20, 2025
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Astro-challenge: Following Venus from dusk until dawn
Up for a challenge? If skies are clear, you may be able to complete a rare feat of visual athletics this coming weekend, and follow Venus on its trek from the evening into the morning sky.
Astronomy
Mar 20, 2025
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DESI releases largest 3D map of the universe to date
The Dark Energy Spectroscopic Instrument (DESI) is mapping millions of celestial objects to better understand dark energy—the mysterious driver of our universe's accelerating expansion. Today, the DESI collaboration released ...
Astronomy
Mar 20, 2025
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Oxygen discovered in most distant known galaxy
Two different teams of astronomers have detected oxygen in the most distant known galaxy, JADES-GS-z14-0. The discovery, reported in two separate studies, was made possible thanks to the Atacama Large Millimeter/submillimeter ...
Astronomy
Mar 20, 2025
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FAST detects new ultra-faint dwarf galaxy
Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), Chinese astronomers have detected a new ultra-faint dwarf galaxy, which turned out to be gas-rich. The finding was reported in a research paper published ...
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