Perhaps the greatest and most frustrating mystery in cosmology is the Hubble tension problem. Put simply, all the observational evidence we have points to a universe that began in a hot, dense state, and then expanded at ...
Astronomy
Jan 17, 2024
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66
In November 2023, the James Webb Space Telescope observed a massive cluster of galaxies named MACS J0138.0-2155. Through an effect called gravitational lensing, first predicted by Albert Einstein, a distant galaxy named MRG-M0138 ...
Astronomy
Dec 21, 2023
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289
One of the great unsolved mysteries of cosmology is known as the Hubble tension. It stems from our inability to pin down the precise rate of cosmic expansion. There are several ways to calculate this expansion, from observing ...
Astronomy
Nov 13, 2023
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47
If you thought dark matter was difficult to study, studying dark energy is even more challenging. Dark energy is perhaps the most subtle phenomenon in the universe. It drives the evolution of the cosmos, but its effects are ...
Astronomy
Sep 14, 2022
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50
Gravitational lensing provides an opportunity to see supernovae and other transients much farther than we normally can. A new research proposal outlines a plan to use a comprehensive catalog of strong gravitational lenses ...
Astronomy
May 10, 2022
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12
Astronomers have made the rare sighting of two stars spiraling to their doom by spotting the tell-tale signs of a teardrop-shaped star.
Astronomy
Jul 12, 2021
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The Super-Kamiokande neutrino observatory can detect different kinds of neutrino-related phenomena, including supernova explosions in our own galaxy. It is normally full of pure water, but it has recently received a dose ...
General Physics
Aug 24, 2020
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17
Have you noticed that Orion the Hunter—one of the most iconic and familiar of the wintertime constellations—is looking a little… different as of late? The culprit is its upper shoulder star Alpha Orionis, aka Betelgeuse, ...
Astronomy
Dec 27, 2019
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1770
NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered 21 planets outside our solar system and captured data on other interesting events occurring in the southern sky during its first year of science. TESS has ...
Astronomy
Jul 26, 2019
0
205
Astronomers using the Subaru Telescope identified about 1800 new supernovae in the distant universe, including 58 Type Ia supernovae over 8 billion light-years away. These findings will help elucidate the expansion of the ...
Astronomy
May 30, 2019
0
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