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Planetary Sciences 17 hours ago

Mercury's crust points to deeper, hotter volcanic origins than expected

The evolutionary histories of Earth and Mercury differ fundamentally. The smallest planet, closest to the sun, likely began cooling early on, much like a setting pudding: As early as about 1 billion years after its formation, ...

Astrobiology Aug 27, 2026

Discovery reveals rapid pathways to complex aromatic molecules in space

A team of researchers led by the University of Hawaiʻi at Mānoa Department of Chemistry has uncovered a faster way large carbon-based molecules may form in space, helping solve a long-standing mystery about how some of the ...

Astronomy Aug 27, 2026

Milky Way's own gravity can mimic dark matter clues, stellar stream simulations suggest

Most of the stars in our Milky Way galaxy sit neatly on a flat plane. But the space around our galaxy is much more chaotic. Rogue bands of stars called "stellar streams" orbit the Milky Way much like planets in our solar ...

Space Exploration Aug 27, 2026

NASA Johnson pilots chase moon's shadow for eclipse science

During the Aug. 12 total solar eclipse over Europe, scientists aimed to study a long-standing mystery: why the sun's outer atmosphere, the corona, is far hotter than its visible surface. Capturing the data they needed meant ...

General Physics Aug 27, 2026

Going beyond simple models of neural networks: Extended mean-field theory offers a better approach

Physics is most readily applied to relatively simple systems: a pendulum, two electrons colliding or the structure of the solar system. But when systems become complicated—when many particles interact with one another, in ...

Astronomy Aug 26, 2026

Roman telescope aims to directly image exoplanets 1,000 times fainter than current limits

The Roman Space Telescope is designed to directly image exoplanets using complex optomechanical systems developed by the Max Planck Institute for Astronomy

Astrobiology Aug 26, 2026

Why some lava-covered exoplanets retain atmospheres for billions of years

Stanford researchers have offered an explanation for why some sizzling, lava-covered worlds nestled tightly around their stars can retain their atmospheres. At such close quarters, intense stellar radiation should strip away ...

Astronomy Aug 26, 2026

Comet 220P McNaught puts on an encore performance

It has been a busy month for astronomy. In the midst of an eclipse season bookended by the total solar eclipse on Aug. 12 and the deep partial lunar eclipse coming up this week on Aug. 28, an outbound comet hanging high in ...

Astronomy Aug 25, 2026

JWST reveals a race against time for forming planets

Planets form from disks of gas and dust around young stars, but the gas needed for growth does not last forever. New observations from NASA's James Webb Space Telescope (JWST) now offer a new view of how this gas escapes ...

Astronomy Aug 25, 2026

Lunar soil reads as a cosmic time capsule for exploding stars

When a star reaches its final stages of life, it ends in a bright, powerful explosion called a supernova and scatters material across the universe. A new study led by a University of Hawai'i at Mānoa researcher has discovered ...

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