News tagged with dark energy

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Celebrating gravity’s light-bending landmark

(PhysOrg.com) -- Today Oxford University scientists are joining in a special celebration of the first test of Albert Einstein’s theory of gravity on the remote African island where the ground-breaking experiment ...

May 29, 2009
3.7 / 5 (7) 1

Cluster collisions switch on radio halos

(PhysOrg.com) -- This is a composite image of the northern part of the galaxy cluster Abell 1758, located about 3.2 billion light years from Earth, showing the effects of a collision between two smaller galaxy ...

Aug 30, 2010
4.8 / 5 (9) 0 | with audio podcast

Do we need dark matter?

It's the biggest problem in physics: the matter we can see in the universe accounts for just five per cent of the observed gravity that holds galaxies together.

Nov 12, 2009
4.2 / 5 (22) 34

Image of M31 heralds the dawn of HSC's productivity

A stunning image of M31 captured by Subaru Telescope's Hyper Suprime-Cam (HSC) displays the fruits of international collaboration and technological sophistication aligned with cutting-edge science. In addition ...

Aug 06, 2013
4.9 / 5 (8) 1

Origin of Key Cosmic Explosions Still a Mystery

(PhysOrg.com) -- When a star explodes as a supernova, it shines so brightly that it can be seen from millions of light-years away. One particular supernova variety - Type Ia - brightens and dims so predictably ...

Jul 12, 2010
4.5 / 5 (12) 7 | with audio podcast