Tag: James Webb Space Telescope

Unusual black hole found at universe’s dawn presents dusty mystery to astronomers

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Unusual black hole found at universe’s dawn presents dusty mystery to astronomers

When the James Webb Space Telescope looks deep into the Universe, some of the objects it finds appear as small, red dots. Astronomers call them little red dots (LRDs), and they have become one of the telescope’s more intriguing discoveries. Now, an international team of astronomers has found an unusual object that may help explain…

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Need to tell AI-made deepfakes from real pics? Call astronomers

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Need to tell AI-made deepfakes from real pics? Call astronomers

Using innovative strategies that astronomers use to identify the shape of distant, dim galaxies, Adejumoke Owolabi, a master’s student at the University of Hull, and her mentor Kevin Pimbblet, a professor of astrophysics and director of the Centre of Excellence for Data Science, Artificial Intelligence and Modelling at the University of Hull, have described a…

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Does Uranus’s moon Ariel also have an underground ocean?

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Does Uranus’s moon Ariel also have an underground ocean?

A view of Ariel composed by NASA/JPL-Caltech, December 12, 2016. | Photo Credit: Kevin M. Gill The Solar System has many mysteries. We don’t know why the Sun’s corona is so hot. We don’t know why Saturn’s moon Titan has such a significant atmosphere. We don’t know why Triton rotates in the direction opposite to…

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Universe had spiral galaxies 4 billion years sooner than expected: study

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Universe had spiral galaxies 4 billion years sooner than expected: study

A new study has revealed more spiral galaxies in the universe’s youth than astronomers had expected. The universe is about 13.8 billion years old and is home to different kinds of galaxies, from spiral to elliptical and those with or without bulges. Astronomers previously believed spiral galaxies formed about 6 billion years ago, but a…

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Earliest-known galaxy, spotted by Webb telescope, is a beacon to cosmic dawn

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Earliest-known galaxy, spotted by Webb telescope, is a beacon to cosmic dawn

This handout image obtained on May 30, 2024 courtesy of NASA/ESA/CSA STScI shows an infrared image from NASA’s James Webb Space Telescope. A galaxy, JADES-GS-z14-0 (shown in the pullout), was determined to be at a redshift of 14.32 (+0.08/-0.20), making it the current record-holder for the earliest known galaxy. | Photo Credit: AFP NASA’s James…

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Could a telescope ever see the beginning of time?

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Could a telescope ever see the beginning of time?

A false-color image obtained by the James Webb Space Telescope (JWST) shows the galaxy JADES-GS-z7-01-QU, the universeÕs earliest-known “dead” galaxy, a galaxy that has stopped star formation, in this undated handout picture obtained by Reuters. | Photo Credit: Reuters The James Webb Space Telescope, or JWST for short, is one of the most advanced telescopes ever…

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How fast is the universe expanding? New data keeps mystery open

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How fast is the universe expanding? New data keeps mystery open

A big open problem in cosmology is the Hubble tension. There are two equally valid ways to measure how fast the universe is expanding, but they have yielded two very different estimates. No amount of rechecking and refining calculations has made this tension go away. In a study published recently in Monthly Notices of The…

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