Twisted lasers could shake up space-time Wanwalder/iStockphoto/Getty Images Powerful, twisting lasers could let us create and detect gravitational waves, the ripples in space-time thus far only seen coming from cosmic objects. While the technology to do so is decades away, this could eventually let us communicate via gravitational waves, in […]
gravitational waves
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The Green Bank telescope in West Virginia, part of the NANOGrav collaboration NANOGrav The following is an extract from our monthly Launchpad newsletter, in which resident space expert Leah Crane journeys through the solar system and beyond. You can sign up for Launchpad for free here. The cosmos is like […]
The gravitational wave background is felt throughout the universe JULIAN BAUM/SCIENCE PHOTO LIBRARY Theoretical physicists have leapt upon the recent discovery of a background hum of gravitational waves permeating the entire universe, with claims that the signal could be a sign of dark matter or even shed new light on […]
Pulsars have helped reveal ripples in space-time throughout the universe NANOGrav The fabric of the universe is constantly rippling, according to astronomers who have discovered a background buzz of gravitational waves. These waves may be produced by supermassive black holes merging across the universe, but they might also have more […]
Editor’s Note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have been able to “hear” the celestial hum of powerful gravitational waves, created by collisions between black holes, echoing across the universe for the first time. Their observations […]
Marcelle Soares-Santos, an astrophysicist at the University of Michigan who was not involved in the work, acknowledged that while this was early evidence, the results were enticing. “This is something that the community has been anticipating for quite a while,” she said, adding that independent measurements from other pulsar timing […]
NEW YORK (AP) — Scientists have observed for the first time the faint ripples caused by the motion of black holes that are gently stretching and squeezing everything in the universe. They reported Wednesday that they were able to “hear” what are called low-frequency gravitational waves — changes in the […]
If aliens were to make spacecraft as massive as Jupiter or ones that use warp drives, we might be able to detect them using the ripples they produce in space-time Space 9 December 2022 By Leah Crane The starship Enterprise from Star Trek Paramount+ We may be able to spot […]