The James Webb Space Telescope (JWST) has observed light from stars surrounding some of the earlier supermassive black holes in the universe — black holes seen as they were less than a billion years after the Big Bang. The observations conducted by a team from the Massachusetts Institute of Technology (MIT) addresses the question of […]
Tag: cosmic
Does a cosmic ‘glitch’ in gravity challenge Albert Einstein’s greatest theory?
There is no denying the awesome predictive power of Albert Einstein‘s 1915 theory of gravity, general relativity — yet, the theory still has inconsistencies when it comes to calculating its effect on vast distances. And new research suggests these inconsistencies could be the result of a “cosmic glitch” in gravity itself. In the 109 years […]
Curious asteroid Selam, spotted by NASA’s Lucy spacecraft, is a cosmic toddler
When NASA’s Lucy mission passed by the near-Earth asteroid Dinkinesh last November, it discovered that Dinkinesh had a companion — a little moonlet that astronomers soon named Selam. And now, scientists have measured Selam’s age. Their estimate suggests that tiny Selam separated from its larger partner Dinkinesh just 2 to 3 million years ago, making […]
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Earth got hammered by cosmic rays 41,000 years ago due to a weak magnetic field
Earth is under constant bombardment by high-energy charged particles called cosmic rays. We’re normally shielded from this barrage by Earth’s magnetic bubble, the magnetosphere. But what happens when this shield weakens? Cosmic rays are primarily hydrogen nuclei blasted into space by powerful celestial events such as the supernova deaths of massive stars. These incredibly energetic […]
The mystery of how strange cosmic objects called ‘JuMBOs’ went rogue
At the end of 2023, astronomers made a startling discovery in the Orion Nebula. Using the James Webb Space Telescope (JWST), the team found 40 pairs of planetary mass objects — none of which orbit a star. They’re called Jupiter-Mass Binary Objects, or JuMBOs. In short, this discovery directly challenged both star birth and planet […]
Cosmic fountain is polluting intergalactic space with 50 million suns’ worth of material
Tremendous explosions in a galaxy close to the Milky Way are pouring material equivalent to around 50 million suns into its surroundings. Astronomers mapped this galactic pollution event in high resolution, obtaining important hints about how the space between galaxies becomes filled with chemical elements that eventually become the building blocks of new stars. The […]
Scientists identify origin of the ‘BOAT’ — the brightest cosmic blast of all time
Using the James Webb Space Telescope (JWST), scientists have finally solved the mysterious origins of the “BOAT,” possibly the biggest cosmic explosion since the Big Bang. The brightest gamma-ray burst of all time (hence the acronym the Brightest Of All Time), aka the BOAT, seems to have been launched by a supernova explosion that accompanied […]
Tim Pennings: Cosmic distances
Did you experience the recent solar eclipse? Have you ever considered how special such an event is? Not because it happens only every few years, but because it happens at all. The moon and sun are just the right sizes and just the right distances from Earth that the apparent size of the moon is […]