Astronomy News

Researchers Find Evidence of Dynamical Dark Energy

This Hubble image shows the inner region of Abell 1689, an immense cluster of galaxies located 2.2 billion light-years away. The cluster’s gravitational field is warping light from background galaxies, causing them to appear as arcs. Dark matter in Abell 1689, which represents about 80% of its mass, is mapped by plotting these arcs. Image credit: NASA / ESA / JPL-Caltech / Yale / CNRS.
Oct 3, 2017 by News Staff

An international team of researchers led by University of Portsmouth Professor Gong-Bo Zhao has found that the nature of dark energy may not be the cosmological constant introduced by Albert Einstein a century ago. This Hubble image shows the inner region of Abell 1689, an immense cluster of galaxies located 2.2 billion light-years away. The cluster’s gravitational field is warping light from background galaxies, causing them to appear as arcs....

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This Hubble image shows the Honeycomb Nebula (to the lower left) and part of the Tarantula Nebula. Image credit: NASA / ESA / Hubble / Judy Schmidt, www.geckzilla.com.

Hubble Finds Cosmic Bubbles and Filaments in Large Magellanic Cloud

Oct 2, 2017 by News Staff

The Large Magellanic Cloud, a satellite galaxy to our own Milky Way Galaxy, is home to one of the largest and most intense regions of star formation known...

This Hubble image shows the galaxy NGC 4490. Image credit: NASA / ESA / Hubble / D. Calzetti, UMass / LEGUS Team / J. Maund, University of Sheffield / R. Chandar, University of Toledo.

Hubble Space Telescope Sees Messy Result of Cosmic Collision: NGC 4490

Sep 29, 2017 by News Staff

A striking new image captured by the NASA/ESA Hubble Space Telescope shows the galaxy NGC 4490. The scattered and warped appearance of the galaxy is the...

Comet C/2017 K2: Hubble Spots Rare Visitor from Oort Cloud

Sep 29, 2017 by News Staff

The NASA/ESA Hubble Space Telescope has photographed the farthest-discovered active inbound comet, C/2017 K2 (PANSTARRS). The comet’s orbit indicates...

This colorful image of the Saturn Nebula was captured by the MUSE instrument on ESO’s Very Large Telescope (VLT), as part of a study which mapped the gas and dust inside the nebula. Image credit: J. Walsh / ESO.

ESO’s Very Large Telescope Probes Interior of Saturn Nebula

Sep 28, 2017 by News Staff

Using ESO’s Very Large Telescope (VLT), astronomers have produced the first detailed optical maps of the gas and dust distributed throughout the spectacular...

NGC 1964. Image credit: Jean-Christophe Lambry / ESO.

MPG/ESO Telescope Looks at NGC 1964

Sep 27, 2017 by News Staff

The MPG/ESO 2.2-m telescope at ESO’s La Silla Observatory in Chile has taken a picture of NGC 1964, an incredibly beautiful spiral galaxy in the constellation...

The star-forming dwarf galaxy J0811+4730 is a proxy for primordial galaxies. Image credit: University of Virginia.

Astronomers Find Record-Breaking Oxygen-Deficient Galaxy

Sep 26, 2017 by News Staff

The oxygen level in J0811+4730, a star-forming dwarf galaxy in the constellation Lynx, some 630 million light-years away, is the lowest yet discovered...

Gliese 3942b: Super-Earth Found Orbiting Nearby Star

Sep 25, 2017 by Natali Anderson

Dr. Manuel Perger, a postdoctoral researcher at Spain’s Institute of Space Sciences (IEEC-CSIC), and colleagues have discovered a ‘super-Earth’ exoplanet...

LEDA 31961. Image credit: NASA / ESA / Hubble.

Hubble Views Peculiar Galaxy LEDA 31961

Sep 25, 2017 by News Staff

NASA has released a stunning image snapped by the NASA/ESA Hubble Space Telescope of the small galaxy LEDA 31961. LEDA 31961. Image credit: NASA / ESA...

At the Pierre Auger Observatory in Argentina, cosmic rays have been detected from far off galaxies. Image credit: A. Chantelauze / S. Staffi / L. Bret / Pierre Auger Observatory.

Ultra-High-Energy Cosmic Rays Have Extragalactic Origins

Sep 22, 2017 by News Staff

For the first time, astrophysicists have confirmed that cosmic rays with ultra-high energies come from outside our Milky Way Galaxy. At the Pierre Auger...

This ALMA image reveals much finer structure in the U Antliae shell than has previously been possible. Image credit: ALMA / ESO / NAOJ / NRAO / F. Kerschbaum.

ALMA Captures Smoky Bubble around Carbon Star U Antliae

Sep 21, 2017 by News Staff

New observations from the Atacama Large Millimeter/submillimeter Array (ALMA) have revealed a remarkably thin spherical shell around U Antliae, a star...

Hubble Spots Unusual Binary Asteroid in Main Belt

Sep 21, 2017 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have spotted an unusual object in the asteroid belt between Mars and Jupiter: two asteroids orbiting...

An artistic illustration of a binary black hole. Image credit: NASA / ESA / G. Bacon, STScI.

Double Supermassive Black Hole is Most Compact Ever Found

Sep 19, 2017 by News Staff

Astronomers have discovered what may be the most compact binary supermassive black hole ever known in a galaxy about 400 million light years from Earth. An...

Regulus. Image credit: DSS / Centre de Données astronomiques de Strasbourg / SIMBAD.

Astronomers Detect Polarized Light from Regulus

Sep 18, 2017 by News Staff

Nearly five decades after it was first predicted that rapidly rotating hot stars would emit polarized light, astronomers have succeeded in observing the...

This image shows the spiral galaxy NGC 6753, which lies in the constellation Pavo, about 148 million light-years away. Image credit: NASA / ESA / Hubble / Judy Schmidt.

Hubble Snaps Photo of Unusual Spiral Galaxy NGC 6753

Sep 18, 2017 by News Staff

NGC 6753 is a whirl of color in this remarkable image from the NASA/ESA Hubble Space Telescope — the bursts of blue throughout the spiral arms are...

This artist’s impression shows WASP-12b, an alien world as black as fresh asphalt, orbiting a star like our Sun. Image credit: NASA / ESA / G. Bacon, STScI.

WASP-12b: Hubble Spots Almost Completely Black Exoplanet

Sep 15, 2017 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have discovered that the well-studied hot Jupiter WASP-12b reflects almost no light, making it appear...

An artist’s impression showing WASP-19b, in which atmosphere astronomers detected titanium oxide for the first time. WASP-19b’s atmosphere is estimated to have a temperature of about 2,000 degrees Celsius. Image credit: M. Kornmesser / ESO.

Hot-Jupiter WASP-19b Has ‘Titanium’ Skies

Sep 14, 2017 by News Staff

Astronomers using ESO’s Very Large Telescope (VLT) have detected titanium oxide in the atmosphere of the hot-Jupiter exoplanet WASP-19b. An artist’s...

Hypothetical Planet 9. Image credit: R. Hurt, IPAC / Caltech.

Planet 9, Probably Not a Scooped Up Exoplanet

Sep 14, 2017 by James Romero

Suggestions that the hypothesized Planet 9 formed outside our solar system, or was even stolen from a rival solar system, have been dealt a blow by investigations...

A selection of SAMI galaxies imaged with NAOJ’s Subaru Telescope. Image credit: National Astronomical Observatory of Japan / Caroline Foster, University of Sydney / Dan Taranu, University of Western Australia.

Astronomers Measure How Galaxy’s Spin Affects Its Shape

Sep 12, 2017 by News Staff

A new study, led by University of Sydney astronomer Caroline Foster, is the first to confirm that increased rotation alters the shape of galaxies: faster-spinning...

This image, taken with the Advanced Camera for Surveys on board the NASA/ESA Hubble Space Telescope, shows the barred spiral galaxy NGC 5398. Image credit: NASA / ESA / Hubble.

Hubble Observes Barred Spiral Galaxy NGC 5398

Sep 12, 2017 by News Staff

 The NASA/ESA Hubble Space Telescope has taken a remarkable new picture of NGC 5398. This image, taken with the Advanced Camera for Surveys on board the...

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