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Earth & Space Sciences
Telescopes, satellites and sensors: the data of the planet and the sky.
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Latest in Earth & Space Sciences
Where does a planet end and a star begin? Webb found a free-floating brown dwarf only about twice Jupiter’s mass, surrounded by a disk of planet-forming material — an object with a planet’s mass that appears to have formed like a star.
1+ hour, 30+ min ago (1201+ words) Webb spectroscopy identifies a roughly two-Jupiter-mass IC 348 member with infrared excess from a disk, while spatial evidence favors star-like formation over planetary ejection....
Strange Seeds Appear to Be Growing Into Massive Black Holes
1+ hour, 58+ min ago (492+ words) Published Sep 20, 2026 8:00 AM EDT For years now, scientists have been puzzled by the existence of “little red dots” first showing up in observations by NASA’s James Webb Space Telescope. These objects appeared in a region they believe dates to just…...
How do mirrors reflect our images?
2+ hour, 7+ min ago (210+ words) Can you imagine never knowing what you looked like? To think about it, without mirrors, you would’ve never seen a crisp-clear image of yourself. Sure, you may get …...
Applied Sciences, Vol. 16, Pages 9319: An Adaptive OVMD-SSA-GRU Hybrid Framework for Highway Soft Rock Slope Deformation Prediction
7+ hour, 10+ min ago (541+ words) Highway soft rock slope deformation monitoring produces nonlinear, non-stationary, and multi-scale time series that are strongly affected by rainfall and field noise. This study proposes an adaptive hybrid framework that combines optimal variational mode decomposition (OVMD), the sparrow search algorithm…...
A New Helium Measurement Is Testing the Universe’s First Five Minutes
1+ day, 37+ min ago (357+ words) Helium, a light chemical element, carries clues to what the universe was like during its first five minutes. To read that record, an international team turned to 15 small, remote galaxies whose chemistry has changed very little, preserving a composition close…...
Hubble Finds a Spiral Galaxy Spinning Out of Sync
12+ hour, 52+ min ago (561+ words) The galaxy, called NGC 4698, is located about 55 million light-years from Earth in the constellation Virgo. It belongs to the Virgo Cluster, the closest large collection of galaxies held together by gravity. This enormous group contains more than 1,000 galaxies. At first…...
Cretaceous oceanic intraplate volcanism
1+ week, 2+ day ago (508+ words) Tectonics is the study of the structural geology of the Earth and other planetary bodies, and the local and regional processes that created that rock geometry. This includes the movements of the Earth’s tectonic plates that result in the creation,…...
Webb Telescope may have uncovered ancient stars powered by dark matter
1+ day, 7+ hour ago (625+ words) Dark stars are candidates for the first stars that formed in the Universe, powered by dark matter. Researchers examining high-redshift objects in Webb Telescope data have detected what could be dark stars from the cosmic dawn. Dark stars are candidates…...
A cosmic web of cosmologies
1+ week, 1+ day ago (400+ words) Cosmology is the study of the universe; its birth, evolution, and ultimate fate. This includes further developing and refining the prevailing model, the Big Bang theory, investigating the universe’s rate of expansion, and measuring radiation left over from the Big…...