Gravitational Waves

Learn How to Make a Rocket

Learn a little bit about the chemistry and physics that go into the construction of a basic rocket in this clip from BBC Earth Lab’s <i>Bang Goes the</i> …

James Cameron

Be More. PBS.

Sign In<p>Use one of the services below to sign in to PBS:<p>You've just tried to add this video to your Watchlist so you can watch it later. But first, we …

Watchlist

Gravitational Waves Show No Evidence of Extra Dimensions

Observing the light from neutron stars provided a baseline to measure the effects of extra dimensions on the propagation of gravitational waves through space.<p>Last year, three physicists shared the Nobel Prize for their detection of gravitational waves produced by colliding black holes. Just two …

Neutron Stars

‘Nuclear Pasta’ May Be Strongest Known Material

Nuclear pasta, thought to exist within a neutron star (illustrated), may be stronger than any other known material (Casey Reed/Penn State …

Neutron Stars

Best of Last Week – Seven photons acting like billions, how plants communicate and an anti-aging molecule

It was another good week for physics as a team at the University of Chicago found gravitational waves provided a dose of reality about extra …

Imperial College London

Faster Than Light? Neutron-Star Merger Shot Out a Jet with Seemingly Impossible Speed

The dramatic neutron-star merger that astronomers spotted last year generated a jet of material that seemed to move at four times the speed of light, …

Neutron Stars

Ask Ethan: If Light Contracts And Expands With Space, How Do We Detect Gravitational Waves?

For the past three years, humanity has known a new kind of astronomy from the traditional ones. No longer are we merely detecting light with a telescope, or neutrinos with enormous particle detectors, to give us an eye on the Universe. In addition to those, we’re also seeing, for the first time, …

LIGO

Thousands of Black Holes Form Disks in the Center of the Galaxy - D-brief

By Chelsea Gohd | September 13, 2018 10:35 am<p>In this artistic visualization, a supermassive black hole at a galaxy’s center shoots out radiation and …

Black Holes

New Scientist Live: what will gravitational waves tell us next?

Detected for the very first time in 2015, gravitational waves are ripples in the fabric of spacetime that occur when massive objects move around.<p>The …

Black Holes

Discovering intermediate-mass black hole lenses through gravitational wave lensing

Author(s): Kwun-Hang Lai, Otto A. Hannuksela, Antonio Herrera-Martín, Jose M. Diego, Tom Broadhurst, and Tjonnie G. F. LiIntermediate-mass black …

Albert Einstein

Scattering of scalar, electromagnetic, and gravitational waves from binary systems

Author(s): Lorenzo Annulli, Laura Bernard, Diego Blas, and Vitor CardosoThe direct detection of gravitational waves crowns decades of efforts in the …

Electromagnetism

The NANOGrav 11-year Data Set: High-Precision Timing of 45 Millisecond Pulsars [STUB]

The NANOGrav 11-year Data Set: High-Precision Timing of 45 Millisecond Pulsars [STUB]<p>Author and Affiliation:<p>Arzoumanian, Zaven<p>(NASA Goddard Space …

Space Travel

A brief history of gravity

At school we all learn about gravity as one of the fundamental forces of nature, described by Newton hundreds of years ago. Even Einstein, who showed …

Dark Matter

Gravitational wave hunting

Gravitational waves are ripples in the fabric of space and time caused by cosmic events such as the collision of black holes or neutron stars. Two …

Neutron Stars

South Pole Telescope will study 'noise' from the early universe

A new camera could shed new light on cosmic background radiation.<p>Scientists just got a valuable tool in their quest to understand the cosmic microwave background radiation that persists from the earliest days of the universe. The South Pole Telescope recently received an ultra-sensitive camera that …

Telescopes

Probing gravitational wave polarizations with Advanced LIGO, Advanced Virgo, and KAGRA

Author(s): Yuki Hagihara, Naoya Era, Daisuke Iikawa, and Hideki AsadaAssuming that, for a given source of gravitational waves (GWs), we know its sky …

LIGO

Apparent Faster-Than-Light Motion Helps Solve Mystery of Colliding Neutron Stars

Last year brought a monumental observation of the cosmos: the light and simultaneous gravitational waves from a pair of colliding neutron stars over …

Universe

Superfast jet observed streaming away from stellar collision

Using a collection of National Science Foundation radio telescopes, Caltech scientists now confirmed that a superfast jet had been produced by the …

Radio Astronomy

"Squeezed Light" Will Give Better Look at Cosmic Goldmines

In 2015, scientists caught evidence of a ­cosmic throwdown that took place 1.3 billion light-​years away. They spied this binary black-hole collision …

Physics

Bell Burnell to donate $3m prize to aid science access

A leading Belfast born scientist has won a $3 million international prize for her ground-breaking work and contribution to the field of …

Physics

Relativistic jet broke through cocoon after neutron star merger

A jet of charged particles moving at nearly the speed of light smashed its way out of debris left behind in the aftermath of the neutron-star merger …

Universe

The Unseen - Issue 64: The Unseen

For something like 5,000 years, astronomy was the analysis of starlight (some of it reflected). In the mid 20th century, cosmic rays (which are …

Breakthroughs

Black holes test the limits of Einstein's relativity

Einstein's theory of general relativity replaced Newton's gravity. Now, gravitational wave observations of black holes might stretch the limits of …

Theory of Relativity

Milky Way and 3 planets: We're in peak stargazing season, says Calgary author

A Calgary astronomy author and photographer says we've now entered stargazing prime time as three planets and the Milky Way are visible in Alberta …

Astronomy

Something called ‘squeezed light’ is about to give us a closer look at cosmic goldmines

Gravitational wave detection is going through an even tighter squeeze.<p>In 2015, scientists caught evidence of a ­cosmic throwdown that took place 1.3 billion light-​years away. They spied this binary black-hole collision by capturing gravitational waves—­ripples in spacetime created when massive …

LIGO

Boosting gravitational wave detectors with quantum tricks

In July of last year Eugene Polzik and his team at Quantop published a highly noticed article in <i>Nature</i> – and this work is actually the very …

Particles

Freak gravitational waves could form black holes and destroy Earth

Physicists say a kind of freakish gravitational wave would be so powerful they could tangle space-time, form a black hole and destroy the Earth. But …

Black Holes

Thousands of black holes form disks in the centers of galaxies

<b>Swarm of Black Holes</b><p>In their simulation, Szölgyén and his Ph.D. advisor, Bence Kocsis, incorporated something called vector resonant relaxation. It’s …

Black Holes

5 times Einstein was wrong

Physicists are constantly trying - and failing - to prove Albert Einstein wrong. We take a look at some of his biggest blunders.

Equations

News of Earth's Possible Destruction Prompts Cheers: 'Hell Yeah'

A story in Newsweek about Earth being swallowed by a black hole has given some online a cause for hope<p>Dozens of internet denizens were abuzz Thursday …

Physics