New York Times: Astronomers believe they’ve found a galaxy from 13.1 billion years ago. The oldest and most distant object seen so far, UDFy-38135539 appears as a small smudge of light in a Hubble Space Telescope photograph. The Paris Observatory’s Matthew Lehnert, lead author of the study published in the journal Nature, and fellow European astronomers calculated the age after 16 hours of observations from a telescope in Chile. “We’re looking at the universe when it was a 20th of its current age,” said Caltech astronomy professor Richard Ellis. The finding is important because it fits with theories about when the first stars and galaxies were born.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
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