Primordial black holes (PBHs) have recently received much attention in the physics community. One of the primary reasons is the potential link to dark matter. In effect, if PBHs can be proven to exist, there's a very good ...
Astronomy
May 14, 2024
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The Large and Small Magellanic Clouds are well-known satellite galaxies of the Milky Way, but there are more. It is surrounded by at least 61 within 1.4 million light years (for context the Andromeda galaxy is 2.5 million ...
Astronomy
May 13, 2024
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After starting science operations in February, Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) studied the monster black hole at the center of galaxy NGC 4151.
Astronomy
May 8, 2024
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Distant galaxies, interacting galaxies, whose shape has been forged by the mutual gravitational influence, but also galaxies forming groups and clusters, kept together by gravity—they are the protagonists of three new images ...
Astronomy
May 7, 2024
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Bright, starry spiral arms surround an active galactic center in this new NASA Hubble Space Telescope image of the galaxy NGC 4951.
Astronomy
May 7, 2024
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On July 1, 2023, Euclid, a unique European space telescope was launched from Cape Canaveral. The launch was undoubtedly the highlight of my career as an astronomer, but witnessing the result of years of work being put on ...
Astronomy
May 1, 2024
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More than 100 years ago, astronomer George Ellery Hale brought two Pasadena institutions together to build what was then the largest optical telescope in the world. The Mount Wilson Observatory changed the conception of humankind's ...
Astronomy
Apr 29, 2024
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I first encountered the three-body problem 60 years ago, in a short story called "Placet is a Crazy Place" by American science fiction writer Frederic Brown.
Planetary Sciences
Apr 28, 2024
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In celebration of the 34th anniversary of the launch of NASA's legendary Hubble Space Telescope on April 24, astronomers took a snapshot of the Little Dumbbell Nebula (also known as Messier 76, M76, or NGC 650/651) located ...
Astronomy
Apr 23, 2024
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South Africa's Karoo region is a vast semi-arid area that stretches across four of the country's provinces. It is sparsely populated and renowned for its wide open spaces.
Astronomy
Apr 23, 2024
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