The physics of no return: What actually happens if you get pulled into a black hole
In 1916, only a year after Albert Einstein had published his general theory of relativity, Karl Schwarzschild used…
APOD: 2026 March 26 – Black Holes and Neutron Stars: 218 Mergers and Counting
APOD: 2026 March 26 – Black Holes and Neutron Stars: 218 Mergers and Counting Discover the cosmos! Each…
Expanding catalog of black hole collisions is rewriting the history of the universe
Between May 2023 and January 2024, a global network of gravitational-wave detectors picked up 128 new cosmic signals,…
Astronomers have discovered a collision between two neutron stars in a small galaxy
ⓘ Mikkehouse – Pixabay An artist’s illustration showing a neutron star. Recently, astronomers have discovered a collision between…
Newly discovered ripples in spacetime put Einstein’s general relativity to the test
When black holes collide, the crash generates ripples in the fabric of spacetime—gravitational waves. These distortions travel far…
New catalog more than doubles the number of gravitational-wave detections made by LIGO, Virgo, and KAGRA observatories | MIT News
When the densest objects in the universe collide and merge, the violence sets off ripples, in the form…
Scientists develop a new way to measure the expansion rate of the universe
For years, cosmologists have argued over a simple question with an awkward answer: How fast is the universe…
Physicists Begin Building First-Ever Graviton Detector
Stevens Institute of Technology physicist Igor Pikovski and colleagues are developing the first experiment designed to capture individual…
Astronomers may have detected a first-of-its-kind superkilonova
The three stages of a theoretical superkilonova are imagined in this artist’s concept. A rapidly spinning massive star’s…
Astronomers solve cosmic mystery surrounding two massive black holes that shouldn’t exist
Astronomers knew something did not add up when detectors picked up a vast cosmic crash in 2023. The…
Physicists detect rare ‘second-generation’ black holes that prove Einstein right… again
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“What Is the Origin of the Waves?” Scientists Hunt the Source of Mysterious Ultra-Low Frequency Gravitational Signals
Ultra-low frequency nanohertz gravitational waves emanating from pulsars may offer clues to unveiling the fabric of the universe,…