The newly launched Atomic Clock Ensemble in Space (ACES) mission will advance our understanding of how gravity affects the passage of time. By comparing highly accurate clocks aboard the International Space Station with those on Earth, ACES aims to test key concepts in Einstein’s theory of relativity and explore fundamental physics.
A newly discovered asteroid, 2025 FA22, has climbed into the top five positions of the European Space Agency’s (ESA) risk list due to its low but measurable chance of striking Earth in 2089. During the first four months of 2025, more than 1 000 new NEOs have been discovered, in line with the recent average of about 3 000 per year.
The Eta Aquariid meteor shower, caused by debris from Halley’s Comet, peaks on May 5–6, 2025. Observers in the Southern Hemisphere may see up to 50 meteors per hour under dark skies before dawn, while those in mid-northern latitudes may observe 10–20 meteors per hour.
A new study proposes that Mars once had a fully molten core, potentially explaining the planet’s hemispheric magnetic field asymmetry. The model links this anomaly to heat loss concentrated in the southern hemisphere, driven by differences in crustal thermal conductivity. The findings offer new insight into Mars’ early interior dynamics and atmospheric evolution.
Gold may not come from where you think. According to new research, some of the gold found in objects like phones and laptops could have been forged in violent magnetar explosions billions of years ago.
Kosmos 482, a Soviet descent module built to survive Venus’s atmosphere, is expected to reenter Earth’s atmosphere between May 8 and 11, 2025, with a high probability of debris survival due to its robust design.
Geologists from the University of Colorado Boulder report that extensive valley networks on Mars were likely formed by widespread precipitation, challenging previous theories that attributed their formation to runoff from melting ice caps. Using landscape evolution models and topographic data from NASA missions, the researchers found that valley head elevations across Mars’ southern highlands are more consistent with rain or snowmelt than with localized ice melting.
Astronomers have uncovered a new exoplanet that’s slowly breaking apart. Located 140 light-years away, this Mercury-sized planet is losing material at an alarming rate, creating a massive trail of vaporized minerals as it orbits its star. This discovery gives scientists a rare chance to study how intense heat and gravity affect a planet’s fate.
A very bright fireball exploded in the sky over southern Brazil at 22:03 UTC on April 23, 2025. The event lasted over 7 seconds, ending with a bright flash and loud boom.
Scientists analyzing data from NASA’s Perseverance rover have discovered diverse volcanic rocks in Jezero Crater. The findings point to prolonged volcanic activity and possible past water interaction, raising new questions about Mars’ potential to support life.
