Tag Archive for Universe

Peering deep into the core of the Crab Nebula, this Hubble image reveals the beating heart of one of the most historic and intensively studied remnants of a supernova, an exploding star. The neutron star at the very center of the nebula has about the same mass as the Sun but compressed into an incredibly dense sphere that is only a few miles across. Spinning 30 times a second, the neutron star shoots out detectable beams of energy that make it look like it’s pulsating. The Hubble snapshot is centered on the region around the neutron star (the rightmost of the two bright stars near the center of this image) and the expanding, tattered, filamentary debris surrounding it. Hubble’s sharp view captures the intricate details of glowing gas, shown in red, that forms a swirling medley of cavities and filaments. Inside this shell is a ghostly blue glow that is radiation given off by electrons spiraling at nearly the speed of light in the powerful magnetic field around the crushed stellar core. This neutron star is a showcase for extreme physical processes and unimaginable cosmic violence. Bright wisps are moving outward from the neutron star at half the speed of light to form an expanding ring. It is thought that these wisps originate from a shock wave that turns the high-speed wind from the neutron star into extremely energetic particles. Image credit: NASA / ESA / J. Hester, ASU / M. Weisskopf, NASA & MSFC.

Astrophysical Shock Waves Generated in the Lab

Jul 18, 2017 by News Staff

A Princeton-led team of researchers has discovered a revolutionary way to generate high-energy shock waves in the lab. Peering deep into the core of the...

This artist’s illustration portrays what the gravitationally lensed galaxy SGAS 1110 might look like up close. A sea of young, blue stars is streaked with dark dust lanes and studded with bright pink patches that mark sites of star formation. SGAS 1110 is one of more than 70 studied as part of the Sloan Giant Arcs Survey, an imaging survey that searched 240 galaxy clusters to find new examples of gravitational lensing. Image credit: NASA / ESA / Z. Levay, STScI.

Hubble Finds Patches of Newborn Stars in Galaxy 11 Billion Light-Years from Earth

Jul 7, 2017 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have captured a detailed image of an extremely distant, gravitationally lensed galaxy they believe...

Gravitational waves observed by Laser Interferometer Gravitational-Wave Observatory (LIGO) twin detectors were produced during the final fraction of a second of the merger of two black holes to produce a single, more massive spinning black hole. Image credit: T. Pyle / LIGO.

Signatures of Universe’s Extra Dimensions Could Be Hiding in Gravitational Waves

Jun 29, 2017 by News Staff

In a paper published in the Journal of Cosmology and Astroparticle Physics (arXiv.org preprint), German physicists investigate the effects due to Universe’s...

The giant elliptical galaxy in the center of this Hubble image is the most massive and brightest member of the galaxy cluster Abell 2261. Spanning a little more than one million light-years, the galaxy is about 10 times the diameter of the Milky Way Galaxy. Abell 2261 is located approximately 3 billion light-years away. Image credit: NASA / ESA / M. Postman, STScI / T. Lauer, NOAO / CLASH Team.

Brightest Cluster Galaxy Alignments Traced Back 10 Billion Years

Jun 13, 2017 by News Staff

A new study based on observations with the NASA/ESA Hubble Space Telescope has shown that so-called brightest cluster galaxies (BCGs) — the very...

This image portrays a simulation of the Universe. Each of the tiniest of the dots denotes an entire galaxy. Matter in the Universe is arrayed on a series of filaments that surround vast voids. Image credit: Max Planck Institute for Astrophysics.

Milky Way Galaxy Resides in Enormous Cosmic Void

Jun 9, 2017 by News Staff

A new study by the University of Wisconsin-Madison supports the idea that our Milky Way Galaxy and its neighbors exist in one of the holes, or voids, of...

Composite image of the Boomerang Nebula: ALMA observations (orange) showing the hourglass-shaped outflow, which is embedded inside a roughly round ultra-cold outflow; the hourglass outflow stretches more than 1.9 trillion miles from end to end, and is the result of a jet that is being fired by the central star, sweeping up the inner regions of the ultra-cold outflow like a snow-plow; the ultra-cold outflow is about 10 times bigger. The ALMA data are shown on top of an image from the NASA/ESA Hubble Space Telescope (blue). Image credit: ALMA / ESO / NAOJ / NRAO / NASA / ESA / Hubble / AUI / NSF.

ALMA Probes Boomerang Nebula, Universe’s Coldest Known Object

Jun 6, 2017 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) may have solved the mystery of the coldest known object in the cosmos —...

An artist’s impression of a quasar and neighboring merging galaxy. The galaxies observed by Decarli et al are so distant that no detailed images are possible at present. This combination of images of nearby counterparts gives an impression of how they might look in more detail. Image credit: Max Planck Institute for Astronomy / NASA / ESA / Hubble.

Astronomers Discover New Kind of Galaxy: Rapidly Star-Forming Galaxies from Early Universe

May 25, 2017 by News Staff

Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have discovered a new kind of galaxy which, although very old — formed...

A simulated black hole of 10 solar masses as seen from a distance of 370 miles. Image credit: Ute Kraus, Universität Hildesheim / Axel Mellinger / CC BY-SA 2.5.

Naked Singularities Can Form in ‘Saddle-Shaped’ Universe, Physicists Say

May 23, 2017 by News Staff

A team of theoretical physicists at the University of Cambridge, UK, has used computer simulations to predict the existence of a so-called naked singularity,...

Hubble view of the galaxy cluster Abell 1689. Image credit: NASA / ESA / Hubble Heritage Team / STScI / AURA / J. Blakeslee, Dominion Astrophysical Observatory / H. Ford, JHU.

Space-Time is Constantly Moving, Physicists Say

May 15, 2017 by News Staff

A team of researchers from the Department of Physics and Astronomy at the University of British Columbia, Canada, has tackled the question ‘what causes...

With the final observation of the distant galaxy cluster Abell 370 -- approximately 6 billion light-years away -- the Frontier Fields program came to an end. Abell 370 is one of the very first galaxy clusters in which astronomers observed the phenomenon of gravitational lensing, the warping of spacetime by the cluster’s gravitational field that distorts the light from galaxies lying far behind it. This manifests as arcs and streaks in the picture, which are the stretched images of background galaxies. Image credit: NASA / ESA / Hubble / HST Frontier Fields.

Abell 370: Hubble Team Releases New ‘Frontier Fields’ Image

May 4, 2017 by News Staff

This new image from the NASA/ESA Hubble Space Telescope is one of the best ever views of the massive galaxy cluster Abell 370. The image (hi-res version)...

Map of the cosmic microwave background; the insets show the environment of the Cold Spot. The angular diameter of the vast supervoid aligned with the Cold Spot, which exceeds 30 degrees, is marked by the white circles. Image credit: ESA Planck Collaboration / Gergö Kránicz.

When Universes Collide: Galaxy Redshift Survey Hints at Exotic Origin for Mysterious ‘Cold Spot’

Apr 26, 2017 by News Staff

According to the results of a redshift survey of nearly 7,000 galaxies, a gigantic ‘hole’ in the Universe is unlikely to explain a ‘Cold Spot’...

Hubble’s view on iPTF16geu. Image credit: NASA / ESA / Hubble.

Hubble Spots Multiply-Imaged, Gravitationally Lensed Type Ia Supernova

Apr 21, 2017 by News Staff

The powerful vision of the NASA/ESA Hubble Space Telescope has allowed astronomers to analyze for the first time the multiple images of a gravitationally...

Dark matter filaments (shown in red) bridge the space between galaxies (shown in white) on this false color map. Image credit: Seth Epps & Michael Hudson, University of Waterloo.

Astronomers Create ‘Image’ of Dark Matter Bridge that Connects Galaxies

Apr 12, 2017 by News Staff

A duo of scientists at the University of Waterloo, Canada, has been able to capture the first composite image of a dark matter bridge that connects galaxies...

An experiment proposed by Dr. Donald Chang aims at resolving divergence between special relativity and standard model of cosmology. Image credit: NASA / ESA / Hubble Heritage Team / STScI / AURA / J. Blakeslee, NRC Herzberg, DAO / H. Ford, JHU.

Is There a Resting Frame in Universe?

Mar 23, 2017 by News Staff

Physics is sometimes closer to philosophy when it comes to understanding the Universe. Dr. Donald Chang, a physicist at the Hong Kong University of Science...

Schematic representation of rotating disc galaxies in the early Universe (right) and the present day (left). New VLT observations suggest that such massive star-forming disc galaxies in the early Universe were less influenced by dark matter (shown in red), as it was less concentrated. As a result the outer parts of distant galaxies rotate more slowly than comparable regions of galaxies in the local Universe. Image credit: ESO / L. Calçada.

Universe’s Early Galaxies Were Less Influenced by Dark Matter

Mar 15, 2017 by News Staff

New observations from ESO’s Very Large Telescope (VLT) indicate that massive, star-forming galaxies during the peak epoch of galaxy formation, 10 billion...

This artist’s impression shows what the galaxy A2744_YD4 might look like. Image credit: ESO / M. Kornmesser.

ALMA Detects Vast Amounts of Interstellar Dust, Oxygen in Very Young, Distant Galaxy

Mar 9, 2017 by News Staff

New observations using the Atacama Large Millimeter/submillimeter Array (ALMA) have demonstrated that A2744_YD4 — the youngest and most remote galaxy...

Abell 2744 takes on a ghostly look where total starlight has been artificially colored blue in this Hubble view. Image credit: NASA / ESA / IAC / HFF Team / STScI.

Astrophysicists Unveil Most Detailed Maps of Dark Matter to Date

Mar 2, 2017 by News Staff

A team of astrophysicists led by Yale Professor Priyamvada Natarajan has unveiled the most detailed maps to date of dark matter, offering a detailed case...

Astronomers combined data from ALMA’s 7- and 12-m antennas to produce the sharpest possible image of RX J1347.5–1145, the center of which shows up here in the dark ‘hole’ in the ALMA observations. The energy distribution of the CMB photons shifts and appears as a temperature decrease at the wavelength observed by ALMA, hence a dark patch is observed in this image at the location of the cluster. The optical image of RX J1347.5–1145 was taken with Hubble. Image credit: NASA / ESA / Hubble / T. Kitayama, Toho University / ALMA.

Astronomers Use ALMA to Hunt for Universe’s Oldest Light

Feb 20, 2017 by News Staff

This image shows the first measurements of the so-called Sunyaev-Zel’dovich effect (SZE) from the Atacama Large Millimeter/submillimeter Array. Astronomers...

According to Antusch et al, oscillons produced a characteristic peak in the otherwise broad spectrum of gravitational waves. Image credit: University of Basel.

Oscillons, Gravitational Wave Factories in Very Early Universe

Feb 15, 2017 by News Staff

A team of theoretical physicists at the University of Basel, Switzerland, has found that in the very early Universe, so-called oscillons — strong...

Hubble Frontier Fields view of a distant galaxy cluster. Image credit: NASA / ESA / HST Frontier Fields Team / STScI.

First Observational Evidence of Holographic Universe?

Jan 30, 2017 by News Staff

A ground-breaking study released in the journal Physical Review Letters (arXiv.org version) offers what its authors call ‘the first observational evidence...

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