Search results for cosmic dawn

Astronomy Dec 18, 2023

History and contents of the universe can be determined using radio telescopes on the moon, researchers say

A study from Tel Aviv University has predicted for the first time the groundbreaking results that can be obtained from a lunar-based detection of radio waves. The study's findings show that the measured radio signals can ...

Astronomy Dec 15, 2023

New red galaxies turn out to be already known blue galaxies

Not all discoveries turn out to be actual new discoveries. This was the case for the extremely red objects (EROs) found in James Webb Space Telescope (JWST) data. Analysis shows that they are very similar to blue-excess dust ...

Astronomy Nov 22, 2023

A galaxy only 350 million years old has surprising amounts of metal

Astrophysicists working with the JWST have found a surprising amount of metal in a galaxy only 350 million years after the Big Bang. How does that fit in with our understanding of the universe?

Astronomy Nov 21, 2023

Dwarf galaxies use 10-million-year quiet period to churn out stars

If you look at massive galaxies teeming with stars, you might be forgiven for thinking they are star factories, churning out brilliant balls of gas. But actually, less evolved dwarf galaxies have bigger regions of star factories, ...

Astronomy Nov 15, 2023

How NASA's Roman Space Telescope will chronicle the active cosmos

NASA's Nancy Grace Roman Space Telescope will pair space-based observations with a broad field of view to unveil the dynamic cosmos in ways that have never been possible before.

Astronomy Nov 13, 2023

Second-most distant galaxy discovered using James Webb Space Telescope

The second- and fourth-most distant galaxies ever observed have been discovered in a region of space known as Pandora's Cluster, or Abell 2744, using data from NASA's James Webb Space Telescope (JWST).

Astronomy Nov 11, 2023

Oldest black hole discovered dating back to 470 million years after the Big Bang

Scientists have discovered the oldest black hole yet, a cosmic beast formed a mere 470 million years after the Big Bang.

Astronomy Nov 7, 2023

Supermassive black holes shut down star formation during cosmic noon, says astronomer

Since it became operational almost two years ago, the James Webb Space Telescope (JWST) has produced countless breathtaking images of the universe and enabled fresh insights into how it evolved.

Astronomy Oct 10, 2023

Source of electron acceleration and X-ray aurora of Mercury ΜΆ local chorus waves detected

Since Mercury is the closest planet to the sun among the solar system planets, it is strongly influenced by the solar wind, a high-speed (several hundred km/s) stream of plasma blowing from the sun. Explorations of Mercury ...

Astronomy Oct 3, 2023

Bursts of star formation explain mysterious brightness at cosmic dawn

When scientists viewed the James Webb Space Telescope's (JWST) first images of the universe's earliest galaxies, they were shocked. The young galaxies appeared too bright, too massive and too mature to have formed so soon ...

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