A new method to exploit Gamma-Ray Bursts (GRBs), the most energetic explosions in the universe, as independent measurements of the Universe’s expansion rate has been discovered in optical wavelength.

Is there anything more dramatic than an exploding star? More than just extraordinarily bright, energetic events that can ...

ESA’s gamma-ray satellite, Integral, is fully operational. Today Integral’s first ground-breaking images of the high-energy Universe were presented in Paris, France. Astronomers call such initial ...

Every 3 hours, NASA’s Fermi Gamma-ray Space Telescope scans the entire sky and deepens its portrait of the high-energy universe. Every year, the satellite’s scientists reanalyze all of the data it has ...

Did you know that the world around us is filled with different types of light waves ? From the warm glow of the sun to audible radio waves and invisible gamma rays, electromagnetic waves (action ...

An experiment on the side of an extinct volcano in Mexico involving gamma rays is helping scientists answer a fundamental question in physics: Is the speed of light the same throughout the universe?

The pulsar Vela rests a thousand light years away from Earth in a tattered cloud of gas and dust that used to be the guts of a massive star. These magnetic field of this dense, burned-out corpse of ...

A thousand light years away, a pulsar called Vela flashes Earth with bright bursts of energy 11 times every second: radio waves, visible light, x-rays, and gamma rays. Astrophysicist Arache ...

A peculiar gamma-ray glow from the heart of the Milky Way has left astronomers scratching their heads. This strange emission, detected through advanced observations, coincides with the identification ...

HAIZI MOUNTAIN, China (AP) — Astrophysicist Cao Zhen opens a steel hatch on a windswept Tibetan Plateau and climbs down a ladder into inky darkness. His flashlight picks out a boat floating on a pool ...