hubble space telescope, Universe

James Webb Telescope Confirms the Universe Is Expanding Faster Than We Thought—and Scientists Still Don’t Know Why
Astronomers have long understood that the universe is expanding—in other words, the space in between cosmic objects that aren’t bound by gravity is getting ever more vast. Then, in 1998, scientists discovered the universe’s rate of expansion is accelerating.
NASA's James Webb Telescope Reveals Universe Expanding Faster Than Thought
The rate of expansion of the universe today is a figure known as the Hubble constant, which is typically measured in units of kilometers per second per megaparsec (km/s/Mpc), where a megaparsec (Mpc) is about 3.26 million light-years.
James Webb telescope confirms we have no idea why the universe is growing the way it is
Astronomers can't agree how fast our cosmos is expanding. A new James Webb Space Telescope study has made the crisis even worse.
James Webb Space Telescope finds smallest asteroids ever seen between Mars and Jupiter
By reverse-engineering James Webb Space Telescope (JWST) exoplanet data, a team of astronomers just spotted dozens of tiny asteroids — including the smallest ever seen in the main belt between Mars and Jupiter.
The Very Best Images From the James Webb Telescope in 2024
The James Webb telescope spent another year collecting instantly iconic space imagery. Here are some of our favorites.
NASA's James Webb telescope unravels enigmas of the universe
Scientists believe NASA's James Webb telescope could allow the space agency to perceive dark matter for the first time to uncover the secrets of the universe that has evaded the hu
NASA’s James Webb Telescope uncovers unexpected mysteries of the universe
New observations from the James Webb Space Telescope have reinforced the Hubble tension, a discrepancy between different measurements of the universe's expansion rate. Scientists, using Cepheid variable stars,
Webb Telescope Confirms Hubble Constant, Challenging Crucial Cosmic Theory
These instruments, like the Hubble Space Telescope, reported a value of around 73 km/s/Mpc. The difference between these numbers is known as the Hubble Tension. "The discrepancy between the observed expansion rate of the universe and the predictions of the standard model suggests that our understanding of the universe may be incomplete,
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'We know so little': Bizarre 'runaway' planets discovered by James Webb telescope may be failed stars in disguise
A new theory explains how dozens of mysterious planet pairs discovered by the James Webb Space Telescope, dubbed "JuMBOs," ...
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'Our understanding of the universe may be incomplete': James Webb Space Telescope data suggests we need a 'new cosmic feature' to explain it all
"The discrepancy between the observed expansion rate of the universe and the predictions of the standard model suggests that ...
Day 12 of the 2024 Space Telescope Advent Calendar
This mid-infrared image of colliding galaxies IC 2163 and NGC 2207 from the James Webb Space Telescope shows two large ...
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Firefly Sparkle: Webb telescope 'weighs' a galaxy for the first time
Nicknamed the Firefly Sparkle, this galaxy existed just 600 million years after the Big Bang and gleams with 10 distinct star ...
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4K James Webb Space Telescope Snaps 90,000 Light-Year Wreath
The James Webb Space Telescope has captured imagery of spiral galaxy NGC 7469, which is 90,000 light-years in diameter. The ...
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New Webb Telescope Discovery Challenges Cosmic Theory
Recent observations from the James Webb Space Telescope (JWST) challenge the previously held cosmic theory on the universe's ...