Einstein's theory of gravity—general relativity—has been very successful for more than a century. However, it has theoretical shortcomings. This is not surprising: the theory predicts its own failure at spacetime singularities ...
General Physics
Sep 25, 2023
90
1036
Researchers have discovered the most distant active supermassive black hole to date with the James Webb Space Telescope (JWST). The galaxy, CEERS 1019, existed about 570 million years after the big bang, and its black hole ...
Astronomy
Jul 6, 2023
31
184
By analyzing the early data from the Dark Energy Spectroscopic Instrument (DESI), an international team of astronomers has identified 95 new extremely metal-poor galaxies at a low redshift. The finding is detailed in a paper ...
One year from now, on Monday, 8 April 2024, the moon will pass directly between Earth and the sun, creating a total solar eclipse like the one that crossed the United States from coast to coast on 21 August 2017. As it did ...
Astronomy
Apr 4, 2023
0
645
On April 8, the moon's shadow will sweep across the United States, as millions will view a total solar eclipse. For many, preparing for this event brings memories of the magnificent total solar eclipse on Aug. 21, 2017.
Planetary Sciences
Jan 30, 2024
0
39
For the first time in nearly three decades of observations, clouds seen on Neptune have all but vanished. Images from 1994 to 2022 of the big blue planet captured from Maunakea on Hawaiʻi Island through the lens of W. M. ...
Astronomy
Aug 17, 2023
3
3962
Light-emitting diodes (LEDs) have revolutionized modern lighting and sensing technology. From applications in our homes to industry, LEDs are used for all lighting applications, from indoor lighting over TV screens to biomedicine. ...
Optics & Photonics
Jan 9, 2024
3
103
On a tiny Caribbean island, hundreds of people are preparing to pack up and move to escape the rising waters threatening to engulf their already precarious homes.
Environment
Sep 6, 2023
1
137
"3 Body Problem," Netflix's new big-budget adaptation of Liu Cixin's book series helmed by the creators behind "Game of Thrones," puts the science in science fiction.
General Physics
Mar 27, 2024
1
101
Paul Maley has spent much of his life chasing solar eclipses.
Planetary Sciences
Feb 26, 2024
0
69
