Astronomy News

Hubble Space Telescope Probes Archaeology of Milky Way’s Bulge

This composite image shows the central region of our Milky Way Galaxy. The Galactic center is located within the bright white region to the right of and just below the middle of the image. Image credit: NASA / ESA / SSC / CXC / STScI.
Jan 12, 2018 by News Staff

Many disc galaxies, including our own Milky Way Galaxy, have a central concentration of stars called a ‘bulge.’ For decades, astronomers had a simple view of Milky Way’s bulge as a quiescent place composed of extremely old stars. Now, a new analysis of about 10,000 Sun-like stars reveals that our Galaxy’s bulge is a dynamic environment of variously aged stars zipping around at different speeds. This conclusion is based on nine years’ worth...

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This Hubble image shows the Orion Nebula. Image credit: NASA / ESA / M. Robberto, Space Telescope Science Institute & ESA / Hubble Space Telescope Orion Treasury Project Team.

Hubble Finds Three Giant Exoplanets and Several Brown Dwarfs in Orion Nebula

Jan 12, 2018 by News Staff

Using the NASA/ESA Hubble Space Telescope to peer deep into the famous Orion Nebula, Space Telescope Institute researcher Massimo Robberto and colleagues...

The globally distributed dishes of the European VLBI Network are linked with each other and the 305-m William E. Gordon Telescope at the Arecibo Observatory in Puerto Rico. Together they have localized FRB121102’s exact position within its host galaxy. Image credit: Danielle Futselaar, www.artsource.nl.

Fast Radio Burst Source Linked to Extreme Magnetic Environment

Jan 11, 2018 by News Staff

Using the Arecibo Observatory in Puerto Rico and the Green Bank Telescope in West Virginia, astronomers have gained new insight into the extreme home of...

Artist’s impression of a galaxy in the early Universe. Image credit: Amanda Smith, University of Cambridge.

ALMA Detects ‘Whirlpool’ Movement in Two Early Galaxies

Jan 10, 2018 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile have spotted swirling gas in some of the Universe’s earliest galaxies. Artist’s...

This illustration shows the TRAPPIST-1 multi-planet system. Image credit: NASA / JPL-Caltech.

Study: Planets within Single Multi-Planet System are Similar in Size and Regularly Spaced

Jan 10, 2018 by News Staff

A study of 909 exoplanets in 355 multi-planet systems discovered by NASA’s Kepler Space Telescope reveals that, unlike our Solar System, other planetary...

This image from the NASA/ESA Hubble Space Telescope shows ACT-CLJ0102-4915. Massive galaxy clusters such as ACT-CLJ0102-4915 are useful tools for studying very distant objects, because this lens-like behavior amplifies the light from faraway galaxies in the background. They also contribute to a range of topics in cosmology, as the precise nature of the lensed images encapsulates information about the properties of spacetime, the expansion of the cosmos and the distribution of dark matter within the cluster. Image credit: NASA / ESA / Hubble / RELICS.

Hubble Captures Enormous Galaxy Cluster 7 Billion Light-Years Away

Jan 8, 2018 by News Staff

A gorgeous photo by the NASA/ESA Hubble Space Telescope shows ACT-CLJ0102-4915, the largest, hottest, and X-ray brightest galaxy cluster ever discovered...

This Hubble image shows part of 30 Doradus, home to the most massive stars in our cosmic neighborhood of about 25 galaxies. Image credit: NASA / ESA / D. Lennon and E. Sabbi (ESA / STScI) / J. Anderson, S. E. de Mink, R. van der Marel, T. Sohn, and N. Walborn (STScI) / N. Bastian (Excellence Cluster, Munich) / L. Bedin (INAF, Padua) / E. Bressert (ESO) / P. Crowther (University of Sheffield) / A. de Koter (University of Amsterdam) / C. Evans (UKATC / STFC, Edinburgh) / A. Herrero (IAC, Tenerife), N. Langer (AifA, Bonn), I. Platais (JHU), and H. Sana (University of Amsterdam).

Massive Stars are More Abundant than Thought

Jan 5, 2018 by News Staff

Observations of 30 Doradus, a star-forming region in a nearby galaxy called Large Magellanic Cloud, reveal that massive stars are more prevalent than models...

‘Alien Megastructure’ Not the Cause of KIC 8462852’s Dimming

Jan 4, 2018 by News Staff

Astronomers are one step closer to solving the mystery behind KIC 8462852, a main-sequence F-type star located in the constellation Cygnus, about 1,480...

This image shows spectacular ribbons of gas and dust wrapping around the pearly center of the barred spiral galaxy NGC 1398. Image credit: ESO.

ESO’s Very Large Telescope Snaps Beautiful Photo of NGC 1398

Jan 2, 2018 by Enrico de Lazaro

A new image from ESO’s Very Large Telescope shows the barred spiral galaxy NGC 1398 in striking detail. This image shows spectacular ribbons of gas and...

Supermassive black holes at the cores of galaxies blast radiation and ultra-fast winds outward, as illustrated in this artist’s conception. Image credit: NASA / JPL-Caltech.

Central Black Holes Control Star Formation in Massive Galaxies: Study

Jan 2, 2018 by News Staff

Supermassive black holes, with masses more than a million times that of the Sun, reside at the centers of all massive galaxies. A new study published in...

This image, captured by Hubble’s Wide Field Camera 3, shows the megamaser galaxy UGC 6093. Image credit: NASA / ESA / Hubble.

Hubble Space Telescope Spots Megamaser Galaxy: UGC 6093

Jan 1, 2018 by News Staff

The NASA/ESA Hubble Space Telescope has taken a picture of the galaxy UGC 6093. This image, captured by Hubble’s Wide Field Camera 3, shows the megamaser...

This image shows the galaxy 3C 298, located approximately 9.3 billion light-years away. The green colors highlight the energetic gas across the galaxy that is being illuminated by the quasar. The blue color represents powerful winds blowing throughout the galaxy. The red-orange colors represent the cold molecular gas in the system. The supermassive black hole sits at the center of the bright red-orange circular area slightly below the middle of the image. Image credit: Vayner et al.

Supermassive Black Holes Shed Light on Galaxy Formation

Dec 29, 2017 by News Staff

New findings from a team of astronomers at the University of California, San Diego, and elsewhere increase understanding of how powerful winds generated...

This colorful image shows the sky around the bright pair of stars π1 Gruis (center-right, very red) and π2 Gruis (center-left, bluish-white). Just right of center the bright spiral galaxy IC 5201 is also visible and many other fainter galaxies are scattered across this wide-field image from the Digitized Sky Survey 2. Image credit: ESO / Digitized Sky Survey 2 / Davide De Martin.

Astronomers Observe Huge ‘Granules’ on Surface of Red Giant Star

Dec 29, 2017 by News Staff

An international team of scientists led by ESO astronomer Claudia Paladini has directly observed granules — patterns of convection currents in the...

Main-belt asteroids 29 Amphitrite, 324 Bamberga, 2 Pallas, and 89 Julia. Image credit: Vernazza et al / ESO.

ESO’s Planet Hunter Spots Four Massive Main-Belt Asteroids

Dec 28, 2017 by News Staff

ESO’s Spectro-Polarimetric High-contrast Exoplanet Research (SPHERE) instrument, installed on the Very Large Telescope at the Paranal Observatory in...

These colorized radar images show the near-Earth asteroid Phaethon. At time of closest approach on December 16, 2017, Phaethon was about 1.1 million miles (1.8 million km) away. The encounter is the closest the asteroid will come to Earth until 2093. Image credit: Arecibo Observatory / NASA / NSF.

Astronomers Obtain Images of Near-Earth Asteroid Phaethon

Dec 26, 2017 by News Staff

A sequence of radar images of the near-Earth asteroid (3200) Phaethon was obtained in December 2017 by astronomers using the NASA-funded planetary radar...

This image shows an enormous, balloon-like bubble (center) being blown into space by a super-hot, massive Wolf-Rayet star. Image credit: NASA / ESA / F. Summers, G. Bacon, Z. Levay, and L. Frattare (Viz 3D Team, STScI).

Solar System May Have Been Born in Wolf-Rayet Bubble

Dec 26, 2017 by News Staff

A team of astronomers from the University of Chicago and Clemson University has laid out a theory for how our Solar System could have formed in the dense...

The galaxy cluster RCS2 J2327-0204. Image credit: ESO / NASA / ESA / Hubble.

Astronomers Find Galaxy Cluster with Mass of Two Quadrillion Suns

Dec 25, 2017 by News Staff

NASA and ESO astronomers have joined forces to observe RCS2 J2327-0204, one of the most massive galaxy clusters known at its distance or beyond. The galaxy...

This illustration shows a ‘disrupted planet’ broken up into a cloud of gas and dust as it orbits RZ Piscium. Image credit: NASA.

Young Star RZ Piscium is ‘Eating’ Its Own Planets, Astronomers Say

Dec 22, 2017 by News Staff

Astronomers studying RZ Piscium, a variable Sun-like star located approximately 555 light-years away in the constellation Pisces, have found evidence suggesting...

Mysterious X-Ray Signal from Perseus Galaxy Cluster Points to Dark Matter

Dec 21, 2017 by News Staff

In 2014, a team of astrophysicists reported the detection of an unusual emission line in X-ray light from the Perseus cluster, a cluster of galaxies 240...

The gas giant K2-132b expands as its host star evolves into a red giant. The energy from the host star is transferred from the planet’s surface to its deep interior, causing turbulence and deep mixing in the planetary atmosphere. The planet orbits its star every 9 days and is located about 2,000 light years away from us in the constellation Virgo. Upper left: schematic of the K2-132 system on the main sequence. Lower left: schematic of the K2-132 system now. The host star has become redder and larger, irradiating the planet more and thus causing it to expand. Image credit: Karen Teramura, University of Hawaii Institute for Astronomy.

Astronomers Find Twin Hot-Jupiters: K2-132b and K2-97b

Dec 20, 2017 by News Staff

A research team led by University of Hawaii astronomers has found two remarkably similar gas giants orbiting very close to their parent red-giant stars. The...

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