DECam's New Image of the Sombrero Galaxy: A Portrait of Ancient Mergers

By Evan Gough - April 28, 2026 03:26 PM UTC | Extragalactic
The 570 megapixel Dark Energy Camera captured this image of the iconic Sombrero Galaxy. The galaxy has characteristics of both elliptical galaxies and spiral galaxies, and is likely the result of multiple mergers and cannibalizations of dwarf galaxies. A faint stellar stream, only fully traced a few years ago, is revealed by DECam's resolving power.
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Tough Fungi Could Survive the Trip to Mars

By Andy Tomaswick - April 28, 2026 02:03 PM UTC | Astrobiology
NASA and other space agencies spend a lot of time and money considering the cleanliness of their missions. Billions of dollars are spent in and on cleanrooms every year, with the express effort of ensuring both that the equipment operates without interference, but also that we don’t accidentally contaminate our exploration target with life from Earth itself. So far, we have primarily focused on bacteria in our efforts to stop this contamination, but according to a new paper by Atul M. Chander of NASA Jet Propulsion Laboratory and his co-authors, we might be missing an entirely different threat - fungi.
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Could Light Alone Get Us to Another Star?

By Mark Thompson - April 28, 2026 09:43 AM UTC | Space Exploration
Using nothing but a laser beam, scientists at Texas A&M University have demonstrated that tiny engineered devices can be lifted and steered in three dimensions without any physical contact. This breakthrough could one day form the basis of a propulsion system capable of reaching our nearest neighbouring stars in decades rather than centuries.
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The Ancient Art That Could Transform Space Communication

By Mark Thompson - April 28, 2026 09:36 AM UTC | Space Exploration
Researchers at the Institute of Science Tokyo have developed an origami inspired foldable antenna for CubeSat satellites that weighs just 64 grams yet in orbit, it deploys to two and a half times its stowed size. The antenna folds away neatly for launch and deploys automatically in space, achieving high gain communications performance from a package small enough to fit in your pocket and could one day support missions as far away as the Moon.
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Space Travel May Impact Human Fertility and Fertilization

By Laurence Tognetti, MSc - April 28, 2026 04:35 AM UTC | Space Exploration
Space travel has taught us valuable lessons for living and working in outer space, specifically regarding how microgravity (often mistakenly called zero-gravity) impacts the human body during short- and long-term spaceflight. This includes decreased muscle and bone mass, fluid shifts, reduced heart rate, psychological health, compromised immune system, and radiation exposure. But with agencies like NASA aspiring to build a lunar base and establish a long-term presence on the Moon, and eventually Mars, how could space travel impact potentially having babies in space?
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Tiny Ultra-Faint Dwarf Galaxies Reflect The Conditions In The Early Universe

By Evan Gough - April 27, 2026 08:08 PM UTC | Milky Way
The Milky Way has a sizable retinue of dwarf galaxies, and they may hold important clues about conditions in the early Universe. However, they're difficult to observe because many of them are so faint. The tiniest ones are called Ultra-faint dwarf galaxies, and a new simulation aimed at how they form is showing how these faint collections of stars and gas mirror the conditions of the early Universe.
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Young Sun-like Stars Are Not As Menacing As Thought

By Evan Gough - April 27, 2026 05:21 PM UTC | Stars
These images, released on April 14, 2026, show two open star clusters, Trumpler 3 (left) and NGC 2353 (right). They represent a recent study from NASA’s Chandra X-ray Observatory that shows how young Sun-like stars are dimmer in X-rays than previously thought. This latest study looked at eight clusters of stars between the ages of […]
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A Cosmic Survey Reveals the Universe's Hidden Side

By Carolyn Collins Petersen - April 27, 2026 02:30 PM UTC | Cosmology
A team of scientists at the University of Virginia is using a telescope in Arizona to study cosmic structure and the result is the largest 3D map of the Universe ever created. The Dark Energy Spectroscopic Instrument (DESI) at Kitt Peak National Observatory is their tool, and the ultimate goal is to get a handle on the mystery of dark energy by charting the positions of galaxies.
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The Universe is Bending Light, and Astronomers Need Your Help to Find it

By Mark Thompson - April 26, 2026 10:07 PM UTC | Extragalactic
Einstein told us that massive objects bend light and he was of course, right. Across the universe, giant galaxies are acting as natural telescopes, warping and distorting the light of objects behind them into spectacular arcs and rings. Now the Euclid space telescope wants your help to find them and the scale of the hunt is unlike anything attempted before.
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Mining the Solar System to Build a New World

By Mark Thompson - April 26, 2026 09:56 PM UTC | Space Exploration
If humans are ever going to live permanently on Mars, someone is going to have to work out where all the raw materials, the food, they oxygen or the material for the structures to name just a few. A new study has tackled that unglamorous but absolutely critical question and the answer involves robots, asteroids, and one of the most complex supply chains ever designed.
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The Planet Haul That Changes Everything.

By Mark Thompson - April 26, 2026 09:43 PM UTC | Exoplanets
NASA's planet hunting telescope has been busy. A new study has just sifted through the light of over 83 million stars and emerged with more than 11,000 potential worlds, including a confirmed giant planet orbiting a distant star. The results don't just add to our catalogue of planets. They fundamentally change where we look for them.
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Another Instrument Shut Down on Voyager 1 to Extend its Interstellar Mission

By Matthew Williams - April 26, 2026 05:39 PM UTC | Space Exploration
On April 17th, engineers at NASA's Jet Propulsion Laboratory (JPL) sent commands to shut down an instrument aboard Voyager 1 called the Low-energy Charged Particles experiment, or LECP. The nuclear-powered spacecraft is running low on power, and turning off the LECP is considered the best way to keep humanity's first interstellar explorer going.
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Webb Finds Water-Ice Clouds on Nearby Super-Jupiter

By Laurence Tognetti, MSc - April 26, 2026 04:05 AM UTC | Exoplanets
The giant planets in our solar system—Jupiter, Saturn, Uranus, and Neptune—have challenged our understanding of planetary formation and evolution. Specifically, their atmospheric formations and compositions have provided awe-inspiring images from spacecraft and given scientists key insights into the interior mechanisms of these massive worlds. But what about exoplanets? What can their atmospheres teach scientists about their formation, evolution, composition, and interior mechanisms? And how do longstanding exoplanet models stack up against the real thing?
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TOI-201 Planets Are Wobbling Out of Our Line of Sight

By Laurence Tognetti, MSc - April 25, 2026 04:20 AM UTC | Exoplanets
It turns out that even after studying our solar system in depth and discovering more than 6,100 exoplanets across more than 4,500 exoplanetary systems, not all solar systems are created equal. The longstanding notion is that planets orbit almost entirely in the same orbital path, also called an orbital plane. But what if an exoplanetary system was found to have exoplanets that not only orbit in different planes, but also exhibits changing behavior regarding when they pass in front of their star?
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JWST Hunts for an 'Earth-Moon' Twin in a Habitable Zone, But the Star Has Other Plans

By Andy Tomaswick - April 25, 2026 02:08 AM UTC | Exoplanets
The Moon has played a huge role in the development of Earth. It stabilizes the planet, tempered dramatic climate swings, and possibly even provided the tidal heating that might have led to the first life forms. So it’s natural we would want to find a similar Earth/Luna system somewhere else in the cosmos. But astronomers have been searching for one for years at this point to no avail. And a new paper from Emily Pass and her colleagues at MIT, Harvard, and the University of Chicago describes using the James Webb Space Telescope to track some of the most promising exomoon candidates - only to be foiled by the star they were orbiting.
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See the Moon Occult Regulus for The Americas Saturday Night

By David Dickinson - April 24, 2026 02:18 PM UTC | Observing
Much of visual astronomy requires nothing more than clear skies, keen eyes, and patience. If you’re out skywatching Saturday evening and live in North or South America, watch for the waxing gibbous Moon pairing with Regulus at dusk. For a privileged region, the Moon will actually blot out or occult the star, in one of the best-placed lunar occultations of a bright star for 2026.
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