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Physics

Gravitational waves produce a background hum across the whole universe

After decades of searching, astronomers have found a distinctive pattern of light, from spinning stars called pulsars, that suggests huge gravitational waves are creating gentle ripples in space-time across the universe

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What the huge young galaxies seen by JWST tell us about the universe

Space

What the huge young galaxies seen by JWST tell us about the universe

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A distant supernova defies our understanding of the cosmos’s expansion

Space

A distant supernova defies our understanding of the cosmos’s expansion

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CE8NB6 Illustration showing galaxy giant whirlpool in space galaxy's effect on space image shows how gravity galaxy warps local

Physics

To create a wormhole that doesn't collapse, you need exotic matter

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HA6GE7 departmentofenergy 8056998030 The Daya Bay Antineutrino Detector

Space

What was the universe's first second like? These particles can tell us

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Mandatory Credit: Photo by Lawrence Jackson/AP/Shutterstock (6360330b) Stephen Hawking Professor Stephen Hawking of the University of Cambridge, makes remarks at an event marking the 50th anniversary of NASA,at George Washington University in Washington Hawking NASA, Washington, USA

Physics

Stephen Hawking’s parting shot is a fresh challenge to cosmologists

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Stephen Hawking with Thomas Hertog, in Hawking's office

Physics

Stephen Hawking's final theorem turns time and causality inside out

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Neil Turok mirror universe

Physics

Neil Turok on the case for a parallel universe going backwards in time

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2B77TB8 3D rendering of abstract digital waves and bright square particles in space. Futuristic background made of dots, particles and mesh

Physics

A miniature universe shows particles may emerge out of empty space

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NASA image release November 9, 2010 Using data from NASA's Fermi Gamma-ray Space Telescope, scientists have recently discovered a gigantic, mysterious structure in our galaxy. This never-before-seen feature looks like a pair of bubbles extending above and below our galaxy's center. But these enormous gamma-ray emitting lobes aren't immediately visible in the Fermi all-sky map. However, by processing the data, a group of scientists was able to bring these unexpected structures into sharp relief. Each lobe is 25,000 light-years tall and the whole structure may be only a few million years old. Within the bubbles, extremely energetic electrons are interacting with lower-energy light to create gamma rays, but right now, no one knows the source of these electrons. Are the bubbles remnants of a massive burst of star formation? Leftovers from an eruption by the supermassive black hole at our galaxy's center? Or or did these forces work in tandem to produce them? Scientists aren't sure yet, but the more they learn about this amazing structure, the better we'll understand the Milky Way. To learn more go to: http://www.nasa.gov/mission_pages/GLAST/news/new-structure.html NASA Goddard Space Flight Center enables NASA???s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA???s accomplishments by contributing compelling scientific knowledge to advance the Agency???s mission. Follow us on Twitter Join us on Facebook Credit: NASA/Goddard Space Flight Center Scientific Visualization Studio

Space

Gamma ray bursts could help unravel how fast the universe is expanding

It may be possible to use the brightest events in the universe, gamma ray bursts, to measure cosmic distances – which could help researchers figure out the universe’s structure

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Space

James Webb Space Telescope’s first deep-field image is stunning

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Space

The universe is surprisingly lopsided and we don't know why

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Physics

Will time ever end? The answer lies in the death throes of the cosmos

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Space

Cosmic dawn ended 200 million years later than cosmologists thought

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