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Mercury Has Shrunk by Several Kilometers Over Billions of Years, Scientists Report
Mercury’s surface reveals it has been shrinking for billions of years due to cooling and faulting. A new study estimates the planet’s radius has contracted by 2.7–5.6 kilometers, offering the most precise figures yet. The findings sharpen understanding of Mercury’s thermal evolution and could help scientists apply the same techniques to tec...
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ESA’s Mars Express Discovers Deep Valleys and Frozen Features Hinting at Mars’ Icy Past
In July 2025, the European Space Agency’s Mars Express orbiter captured a high-resolution image of Acheron Fossae, a region marked by deep chasms and ridges on Mars’s surface. These features, created by ancient crustal stretching, split the terrain into raised horsts and sunken grabens. Valley floors reveal smooth surfaces carved by slow-moving...
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Earth’s Oldest Impact Crater Turns Out to Be Much Younger, Scientists Reveal in New Study
The Miralga impact crater in Western Australia, once thought to be Earth’s oldest at 3.5 billion years, has now been redated to after 2.7 billion years ago. With a revised diameter of just 16 kilometers, the structure no longer supports theories of early crust or life formation, but remains scientifically valuable for studying Mars-like planetary...
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Study Reveals What Presence Of CO2 On Eight Saturn Moons Means
The study aims to help scientists understand the existence of CO2 on planetary bodies, the process of formation and evolution.
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Magnetic Wave Study Detects Lithium in Mercury’s Exosphere for First Time Ever
For the first time, scientists have detected lithium in Mercury’s exosphere using magnetic wave signatures found in MESSENGER spacecraft data. The findings link lithium’s release to meteoroid impacts that vaporise planetary material, offering fresh insight into volatile element delivery. This breakthrough reshapes our understanding of Mercury...
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Chandra Spots Distant Baby Planet Losing Its Atmosphere Under Intense X-ray Assault
NASA’s Chandra X-ray Observatory has captured a rare glimpse of TOI 1227 b, a young, Jupiter-sized exoplanet losing its atmosphere under intense stellar radiation. Just 8 million years old, the planet is shrinking rapidly as X-rays strip away its mass. Scientists warn it may become a barren rocky core in about a billion years.
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Uranus Found Emitting Internal Heat, Reviving Hopes for Flagship NASA Mission
Astronomers have discovered that Uranus emits 12% more heat than it receives from sunlight, contradicting past data from Voyager 2. The internal warmth likely comes from leftover energy in the planet’s core, offering clues to its tilt and interior structure. This unexpected heat has intensified calls for a flagship NASA mission to Uranus. Scienti...
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Earth’s Spin to Speed Up Briefly, Causing Shorter Days This Summer
Scientists report that Earth will briefly spin faster on July 9, 22, and August 5, shortening those summer days by 1.3 to 1.5 milliseconds. Though undetectable in daily life, this shift offers clues to how lunar gravity and seasonal changes affect planetary dynamics. Experts note that while timekeeping systems like GPS are unaffected, this rare spe...
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New Interstellar Object 3I/ATLAS Could Reveal Secrets of Distant Worlds
Astronomers have confirmed the arrival of 3I/ATLAS, only the third interstellar object ever spotted in our solar system. First seen on July 1, 2025, by the ATLAS survey team in Chile, it was quickly identified by its unusual hyperbolic orbit and comet-like tail. Larger and brighter than either 1I/ʻOumuamua or 2I/Borisov, 3I/ATLAS is estimated to b...
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"Mushroom" On Mars: Is This A Sign Of Life On Red Planet?
While there's currently no definitive evidence of life on the Red Planet, scientists continue to explore the possibility.
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'Strange' Planetary System With Unusual Orbit Intrigues Scientists
The planet was formed around four billion years ago and has a frigid atmospheric temperature of just minus 3 degrees Celsius.
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Hubble Finds Cosmic Dust Coating Uranus’ Moons, Not Radiation Scars
New Hubble Space Telescope observations have upended decades of expectations about Uranus’ moons. Scientists once thought the planet’s magnetic field darkened their backsides with radiation, but the latest data shows Titania and Oberon are collecting space dust on their leading sides instead. This “cosmic bug splatter” effect suggests dust ...
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NASA Slightly Raises Odds of Asteroid Hitting the Moon in 2032 After Updated JWST Data
NASA has revised the 2032 impact odds of asteroid 2024 YR4 hitting the Moon to 4.3%, up from 3.8%, based on new data from the James Webb Space Telescope. Though once feared for its high Earth impact risk, scientists now say it poses no threat and offers critical insights for future planetary defense strategies.
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AI Reveals Mars’s Mysterious Slope Streaks Likely Formed by Dust, Not Water Activity
An AI-based study has found that Mars’s mysterious dark slope streaks are likely formed by dust and wind, not flowing water as long believed. Based on an analysis of over 86,000 satellite images, the findings challenge past theories and may help scientists focus future Mars missions on more promising areas in the search for ancient life.
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Europa Could Briefly Sustain Life When the Sun Becomes a Red Giant Star, Scientists Say
Scientists at Cornell’s Carl Sagan Institute propose that Jupiter’s moon Europa could host life for up to 200 million years during the sun’s red giant phase. While Earth would be incinerated, Europa’s subsurface oceans might temporarily support microbial life, offering a final refuge in the solar system and expanding the search for biosigna...
-
Mercury Has Shrunk by Several Kilometers Over Billions of Years, Scientists Report
Mercury’s surface reveals it has been shrinking for billions of years due to cooling and faulting. A new study estimates the planet’s radius has contracted by 2.7–5.6 kilometers, offering the most precise figures yet. The findings sharpen understanding of Mercury’s thermal evolution and could help scientists apply the same techniques to tec...
-
ESA’s Mars Express Discovers Deep Valleys and Frozen Features Hinting at Mars’ Icy Past
In July 2025, the European Space Agency’s Mars Express orbiter captured a high-resolution image of Acheron Fossae, a region marked by deep chasms and ridges on Mars’s surface. These features, created by ancient crustal stretching, split the terrain into raised horsts and sunken grabens. Valley floors reveal smooth surfaces carved by slow-moving...
-
Earth’s Oldest Impact Crater Turns Out to Be Much Younger, Scientists Reveal in New Study
The Miralga impact crater in Western Australia, once thought to be Earth’s oldest at 3.5 billion years, has now been redated to after 2.7 billion years ago. With a revised diameter of just 16 kilometers, the structure no longer supports theories of early crust or life formation, but remains scientifically valuable for studying Mars-like planetary...
-
Study Reveals What Presence Of CO2 On Eight Saturn Moons Means
The study aims to help scientists understand the existence of CO2 on planetary bodies, the process of formation and evolution.
-
Magnetic Wave Study Detects Lithium in Mercury’s Exosphere for First Time Ever
For the first time, scientists have detected lithium in Mercury’s exosphere using magnetic wave signatures found in MESSENGER spacecraft data. The findings link lithium’s release to meteoroid impacts that vaporise planetary material, offering fresh insight into volatile element delivery. This breakthrough reshapes our understanding of Mercury...
-
Chandra Spots Distant Baby Planet Losing Its Atmosphere Under Intense X-ray Assault
NASA’s Chandra X-ray Observatory has captured a rare glimpse of TOI 1227 b, a young, Jupiter-sized exoplanet losing its atmosphere under intense stellar radiation. Just 8 million years old, the planet is shrinking rapidly as X-rays strip away its mass. Scientists warn it may become a barren rocky core in about a billion years.
-
Uranus Found Emitting Internal Heat, Reviving Hopes for Flagship NASA Mission
Astronomers have discovered that Uranus emits 12% more heat than it receives from sunlight, contradicting past data from Voyager 2. The internal warmth likely comes from leftover energy in the planet’s core, offering clues to its tilt and interior structure. This unexpected heat has intensified calls for a flagship NASA mission to Uranus. Scienti...
-
Earth’s Spin to Speed Up Briefly, Causing Shorter Days This Summer
Scientists report that Earth will briefly spin faster on July 9, 22, and August 5, shortening those summer days by 1.3 to 1.5 milliseconds. Though undetectable in daily life, this shift offers clues to how lunar gravity and seasonal changes affect planetary dynamics. Experts note that while timekeeping systems like GPS are unaffected, this rare spe...
-
New Interstellar Object 3I/ATLAS Could Reveal Secrets of Distant Worlds
Astronomers have confirmed the arrival of 3I/ATLAS, only the third interstellar object ever spotted in our solar system. First seen on July 1, 2025, by the ATLAS survey team in Chile, it was quickly identified by its unusual hyperbolic orbit and comet-like tail. Larger and brighter than either 1I/ʻOumuamua or 2I/Borisov, 3I/ATLAS is estimated to b...
-
"Mushroom" On Mars: Is This A Sign Of Life On Red Planet?
While there's currently no definitive evidence of life on the Red Planet, scientists continue to explore the possibility.
-
'Strange' Planetary System With Unusual Orbit Intrigues Scientists
The planet was formed around four billion years ago and has a frigid atmospheric temperature of just minus 3 degrees Celsius.
-
Hubble Finds Cosmic Dust Coating Uranus’ Moons, Not Radiation Scars
New Hubble Space Telescope observations have upended decades of expectations about Uranus’ moons. Scientists once thought the planet’s magnetic field darkened their backsides with radiation, but the latest data shows Titania and Oberon are collecting space dust on their leading sides instead. This “cosmic bug splatter” effect suggests dust ...
-
NASA Slightly Raises Odds of Asteroid Hitting the Moon in 2032 After Updated JWST Data
NASA has revised the 2032 impact odds of asteroid 2024 YR4 hitting the Moon to 4.3%, up from 3.8%, based on new data from the James Webb Space Telescope. Though once feared for its high Earth impact risk, scientists now say it poses no threat and offers critical insights for future planetary defense strategies.
-
AI Reveals Mars’s Mysterious Slope Streaks Likely Formed by Dust, Not Water Activity
An AI-based study has found that Mars’s mysterious dark slope streaks are likely formed by dust and wind, not flowing water as long believed. Based on an analysis of over 86,000 satellite images, the findings challenge past theories and may help scientists focus future Mars missions on more promising areas in the search for ancient life.
-
Europa Could Briefly Sustain Life When the Sun Becomes a Red Giant Star, Scientists Say
Scientists at Cornell’s Carl Sagan Institute propose that Jupiter’s moon Europa could host life for up to 200 million years during the sun’s red giant phase. While Earth would be incinerated, Europa’s subsurface oceans might temporarily support microbial life, offering a final refuge in the solar system and expanding the search for biosigna...
