141–160 of 286 results
Planck_polarization_image_of_BICEP2_field

Cosmology

BICEP's Big Bang Finding Reduced to Dust

Yes, it was too good to be true. The cosmic "discovery of the century" last March has officially blown up. Or will blow up next week when a new analysis of polarization in the cosmic microwave background is officially released. The excitement burst onto the world 10 months ago when…

artist's conception of BAO

Cosmology

BOSS: A Ruler to Measure Them All

Amidst the release of a treasure trove of astronomical data, scientists announce the most precise “standard ruler” yet for cosmological distances.

Coma Cluster

Cosmology

Dark Galaxies Discovered in Coma Cluster

A bizarre set of galaxies in the Coma Cluster have lost most of their stars (or star-making material), making them especially rich in dark matter.

dust polarization emission at galactic poles

Cosmology

Dust Makes Cosmic Inflation Signal Iffy

A new analysis of Planck data bolsters the claim that the polarization signal heralded as evidence for cosmic inflation is from dust instead.

local supercluster

Cosmology

Laniakea: Our Home Supercluster

Astronomers have mapped the cosmic watershed and discovered a massive supercluster that extends more than 500 million light-years and contains 100,000 large galaxies. The Milky Way sits on the edge of this humongous structure.

Cosmology

GRBs: A New Standard Candle?

Astronomers might be on the brink of developing a new rung on the cosmic distance ladder.

Cosmology

Dwarf Galaxies Packed a Mighty Punch

Light from the puniest galaxies played a bigger role in shaping the early universe than previously thought.

Cosmology

New Radio Burst Deepens Mystery

A newly discovered radio burst places these ultrafast, ultrabright pulses on the cosmic map of unknown phenomena.

Cosmology

The Mystery of the Missing Light

Astronomers recently discovered that there is not nearly enough ultraviolet light from stars and quasars in the local universe to account for observations of intergalactic gas.

Perseus Cluster

Cosmology

Mysterious X-rays Might Hint at Dark Matter

Astronomers have discovered a spike of X-ray emission in galaxy clusters — “ordinary” interpretations don’t hold up, so some are turning to dark matter for answers.

Cosmology

Shadow of a Supervoid

Scientists might have discovered the source of the mysterious Cold Spot in the Cosmic Microwave Background: an enormous supervoid.

Planck map with cosmic infrared background

Cosmology

Big Bang Inflation Evidence Inconclusive

New analyses suggest that observations heralded as evidence for the universe’s brief growth spurt don’t conclusively show what researchers thought they did.

Milky Way's magnetic field

Cosmology

Planck's Magnetic Map of Our Galaxy

The ESA's Planck mission has released one of the most detailed maps of the Milky Way's magnetic field.

Illustris simulation's view of the universe

Cosmology

Best Model Yet for Cosmic Evolution

Astronomers have created the most realistic computer simulation of the universe’s evolution to date, tracking activity across 13 billion years of cosmic history.

Cosmology

Mysteriously Bright Supernova Explained

In 2010, a mysteriously bright supernova appeared, later sparking a debate within the astronomy community. But new images of the now-faded supernova reveal an intervening — and until now invisible — cosmic lens, which magnified its light.

Cosmology

Quasars Track Expanding Universe

The most precise measurement yet of the Hubble parameter illuminates dark energy — the elusive entity that’s accelerating the universe’s expansion.

Cosmology

A New Galactic Yardstick

Astronomers have developed a new method to measure distances to bright but faraway galaxies, a tool which will help better constrain the expansion rate of the universe.

Cosmology

Fooling with the Universe

This year’s April Fools' provides a wealth of alarming results. Catch up on all the scientific shenanigans here.

http://hubblesite.org/newscenter/archive/releases/2000/2000/37/image/a/

Cosmology

Dust in the Heart of Circinus

Infrared observations of the Circinus Galaxy may help reveal the shape of the dusty region fueling its active galactic nucleus and shed light on what governs dust structures in other galaxies.

Cosmology

Dark Matter Spotted in the Milky Way?

A team of astronomers claim to have the most compelling case for annihilating dark matter yet.