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News
New simulations suggest the moon formed just 5 hours after Earth slammed into protoplanet Theia
57+ min ago (552+ words) Earth's moon may have formed far faster than scientists once believed, with new simulations suggesting it came together in as little as five hours after a catastrophic collision. That unexpectedly short timeline could reshape researchers' understanding of one of the…...
Astronomers Spotted a 'Bear' on Mars
6+ hour, 32+ min ago (186+ words) On 12 December 2022, an orbiter traveling 251 kilometers (156 miles) above the southern highlands of Mars photographed a hill....
Andromeda is visible from 2.5 million light-years because the light of hundreds of billions of stars blends together. But an Earth-like planet there would be roughly ten billion times fainter than its own star and separated from it by only about 1.3 microarcseconds—far beyond the direct-imaging ability of any existing telescope.
8+ hour, 2+ min ago (652+ words) Andromeda’s collective glow reaches the naked eye, but an Earth-Sun analogue there would combine a ten-billion-to-one contrast with a 1.3-microarcsecond separation....
A Cosmic Catastrophe May Have Turned Neptune’s Ancient Moons Inside Out
10+ hour, 49+ min ago (962+ words) In 1989, Voyager 2 discovered six previously unknown moons around Neptune. Five of them are tiny satellites that travel just beyond the planet’s main rings. Their small size and great distance from Earth have made them especially difficult to study in detail....
Scientists Forced Water Into a Bizarre New State of Matter That May Explain Uranus and Neptune’s Strange Mgnetic Fields
12+ hour, 16+ min ago (575+ words) What happens to water when the usual rules no longer seem to apply? Scientists have recreated extraordinary conditions in the lab, uncovering a state of matter that could be hiding deep inside distant planets. Scientists have created a bizarre type…...
Ryugu’s Hidden Chemistry Reveals How Space Rocks May Have Delivered Life’s Ingredients To Earth
12+ hour, 16+ min ago (723+ words) Ancient dust from asteroid Ryugu reveals how nitrogen-rich compounds may have formed and survived before reaching young planets. Tiny grains collected from asteroid Ryugu have revealed how nitrogen-rich compounds may have formed and survived in space before reaching young planets....
The closest planet to our sun is shrinking. Here’s what that means
14+ hour, 16+ min ago (892+ words) Telltale wrinkles that cover Mercury, the closest planet to the sun, suggest it was once a larger world that has shrunk in size — and it may be shrinking more than scientists realized. Related video above: New images of the sun…...