Although the famous Carrington Event of 1859 is often described as the first major space weather event to affect technology, earlier incidents did occur. Historical records show that telegraph systems were disrupted by geomagnetic storms as early as the late 1840s.

The post Study: Famous ‘Space Weather’ Train Delay Actually Happened Seven Years Later appeared first on Sci.News: Breaking Science News.

Dr. Stephen Kane from the University of California, Riverside and colleagues offer a tidy explanation for one of the Solar System’s enduring puzzles: why Venus, so similar to Earth in size and mass, has no moon at all.

The post New Study Explains Why Venus Has No Moon appeared first on Sci.News: Breaking Science News.

The Solar System’s smallest planet has contracted by nearly 19 km (12 miles) across, as crater debris masked telltale wrinkles on its surface, according to new research led by the German Aerospace Center’s Institute of Space Research.

The post Mercury Has Shrunk Even More than Planetary Scientists Thought appeared first on Sci.News: Breaking Science News.

After nearly eight years and billions of kilometers of travel, BepiColombo -- a science mission led by ESA in close collaboration with JAXA -- has begun its long-awaited arrival at the smallest and innermost planet in our Solar System.

The post BepiColombo Begins Final Approach to Mercury appeared first on Sci.News: Breaking Science News.

Using a novel laboratory calibration, planetary researchers in Germany have produced the most reliable map yet of silica (SiO2) concentrations across the surface of Earth’s Moon, and a first silica estimate for Mercury.

The post Mercury’s Crust May Hide Metal beneath Its Surface appeared first on Sci.News: Breaking Science News.

New research puts stringent limits on the unknown ‘material’ responsible for Venus’ dark ultraviolet markings, suggesting it must absorb sunlight with remarkable efficiency or exist in unusually high concentrations.

The post Something in Venus’ Clouds is Absorbing Astonishing Amount of Sunlight appeared first on Sci.News: Breaking Science News.

Perseverance has caught the silhouette of Phobos, one of the two Martian moons, sweeping across the solar disk in a fresh transit video from Jezero crater.

The post NASA’s Perseverance Rover Spots Phobos Crossing the Sun appeared first on Sci.News: Breaking Science News.

New simulations suggest supernova explosions of the Universe’s first stars scattered the ingredients for rocky planets only 100 million years after the Big Bang, with water already present in some planet-forming disks.

The post Rocky Planets May Have Started Forming Just 100 Million Years after Big Bang appeared first on Sci.News: Breaking Science News.

Planetary researchers analyzing images from NASA’s New Horizons spacecraft have found evidence that liquid nitrogen may still be seeping up from beneath the dwarf planet’s giant glacier, Sputnik Planitia, marking the first suggested case of recently flowing liquid on Pluto’s surface.

The post Liquid Nitrogen May Have Flowed on Pluto’s Surface in Recent Past appeared first on Sci.News: Breaking Science News.

NASA’s Curiosity rover has stumbled on the largest patch of polygon-shaped ground fractures it has ever seen on Mars, a discovery that could reveal more about the planet’s watery past.

The post Curiosity Finds Massive Field of Honeycomb-Shaped Fractures on Mars appeared first on Sci.News: Breaking Science News.

Pluto’s tenuous atmosphere appears to have begun contracting after years of holding steady, according to a new study published in the Planetary Science Journal.

The post Pluto’s Thin Atmosphere May Be Starting to Shrink appeared first on Sci.News: Breaking Science News.

A new look at more than two decades’ worth of archival data from NASA’s Spirit mission suggests that the Martian soil may hold iron-bearing minerals -- hematite and altered magnetite -- that were too faint for scientists to detect in real time during the mission.

The post Hidden Clues in Spirit Rover Data Suggest Mars Once Had Far More Water than Scientists Realized appeared first on Sci.News: Breaking Science News.

Europa’s subsurface ocean has long topped astrobiologists’ wish lists as a place to search for life beyond Earth.

The post Europa’s Ice Shell May Be Tougher Barrier than Planetary Scientists Hoped appeared first on Sci.News: Breaking Science News.

New 3D computer simulations from ETH Zurich show that young rift flanks on Venus stay tall and steep, while older ones flatten out over time.

The post Giant Rift Valleys Hint Venus is Still Tectonically Active appeared first on Sci.News: Breaking Science News.

New data from NASA’s Juno spacecraft show temperatures spike more than 20 degrees Celsius just a few meters under Io’s surface, providing the first look at what’s happening below the crust of the Solar System’s most volcanic world.

The post Juno’s Microwave Vision Peers beneath Surface of Jupiter’s Volcanic Moon Io appeared first on Sci.News: Breaking Science News.

Planetary researchers have found the first evidence that bursts of energetic particles from the Sun could warm the lower atmosphere of Mars during massive dust storms, hinting at an unexpected link between space weather and Martian climate.

The post Space Weather May Warp Martian Weather during Dust Storms, Planetary Scientists Suggest appeared first on Sci.News: Breaking Science News.

By analyzing nickel isotopes preserved in the 66-million-year-old debris left by the Chicxulub impact, researchers conclude that the asteroid responsible for Earth’s last mass extinction most likely belonged to an exceptionally rare class of primitive meteorites called carbonaceous chondrites of the Ornans type (CO chondrites).

The post Dinosaurs May Have Been Wiped Out by ‘Oddball’ Space Rock appeared first on Sci.News: Breaking Science News.

New research indicates that Pluto’s largest moon, Charon, may continue to lose rotational energy despite the pair’s long-standing tidal lock, offering scientists a rare glimpse into the hidden interiors of distant icy worlds.

The post Pluto’s Moon Charon May Still Be Slowing Its Spin, Study Suggests appeared first on Sci.News: Breaking Science News.

On July 5, 2026, Japan Aerospace Exploration Agency’s Hayabusa-2 spacecraft completed the first asteroid encounter of its extended mission, flying past the two-lobed near-Earth asteroid Torifune and returning its close-up visible and thermal images.

The post Hayabusa-2 Snaps Stunning Close-Up Images of Asteroid Torifune during Flyby appeared first on Sci.News: Breaking Science News.

On July 2, 2026, the Tianwen-2 probe closed to within 20 km (12.4 miles) of the small near-Earth asteroid 2016 HO3, one of only seven Earth quasi-satellites identified to date, kicking off a science campaign ahead of an eventual sample-return attempt.

The post China’s Tianwen-2 Spacecraft Reaches Earth’s Quasi-Moon after One Billion-Kilometer Journey appeared first on Sci.News: Breaking Science News.