Related topics: dark energy

Holes in the Universe sharpen cosmic measurements

Regions of the Universe containing very few or no galaxies—known as voids—can help measure cosmic expansion with much greater precision than before, according to new research.

Dark Energy Survey finds more celestial neighbors

Scientists on the Dark Energy Survey, using one of the world's most powerful digital cameras, have discovered eight more faint celestial objects hovering near our Milky Way galaxy. Signs indicate that they, like the objects ...

Dark Energy Survey set to seek out supernovae

(Phys.org) —The largest ever search for supernovae – exploding stars up to 10 billion times brighter than the Sun – is beginning this August. For the next five years, the Dark Energy Survey (DES) will look for these ...

WiggleZ survey confirms the big picture of the Universe

(Phys.org) -- We know that stars group together to form galaxies, galaxies clump to make clusters and clusters gather to create structures known as superclusters. At what scale though, if at all, does this Russian doll-like ...

Has the speediest pulsar been found?

(Phys.org) -- NASA's Chandra X-ray Observatory and ESA's XMM-Newton in space, and the Parkes radio telescope in Australia -- may have found the fastest moving pulsar ever seen.

G299.2-2.9, a middle-aged supernova remnant

(PhysOrg.com) -- G299.2-2.9 is an intriguing supernova remnant found about 16,000 light years away in the Milky Way galaxy. Evidence points to G299.2-2.9 being the remains of a Type Ia supernova, where a white dwarf has grown ...

Blazars

(PhysOrg.com) -- A blazar is a galaxy which, like a quasar, has an intensely bright central nucleus containing a supermassive black hole. In a blazar, however, the emitted light sometimes includes extremely high energy gamma ...

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