Astronomy TOP STORY

Supermassive Black Holes Are Outgrowing Their Galaxies

© NASA/SI

Growing Black Hole

The biggest black holes in the universe are growing faster than the rate of stars being formed in their galaxies, according to two new studies using data from NASA's Chandra X-ray Observatory and other telescopes.


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Spiral Galaxy NGC 3344 in Leo Minor

© STSCI

NGC 3344

Beauty, grace, mystery -- this magnificent spiral galaxy has all the qualities of a perfect galactic Valentine.

VLT Is Working As A 16-meter Telescope For The First Time

VLT Is Working As A 16-meter Telescope For The First Time

The ESPRESSO instrument on ESO's Very Large Telescope in Chile has for the first time been used to combine light from all four of the 8.2-metre Unit Telescopes.


Hubble's Lonely Firework Display

Hubble's Lonely Firework Display

Roughly 50 million light-years away lies a somewhat overlooked little galaxy named NGC 1559. Pictured here by Hubble's Wide Field Camera 3, this barred spiral lies in the little-observed southern constellation of Reticulum (the Reticule).


Cosmic X-rays May Provide Clues To The Nature Of Dark Matter

Cosmic X-rays May Provide Clues To The Nature Of Dark Matter

Dark matter is increasingly puzzling. Around the world, physicists have been trying for decades to determine the nature of these matter particles, which do not emit light and are therefore invisible to the human eye.


Planets Discovered In Extragalactic Galaxies Using Microlensing

Planets Discovered In Extragalactic Galaxies Using Microlensing

A University of Oklahoma astrophysics team has discovered for the first time a population of planets beyond the Milky Way galaxy.


New Study Challenges Popular Theory About Dwarf Galaxies

New Study Challenges Popular Theory About Dwarf Galaxies

A new international study involving The Australian National University (ANU) has found a plane of dwarf galaxies orbiting around Centaurus A in a discovery that challenges a popular theory about how dwarf galaxies are spread around the Universe.


One of the First Stars Formed in the Milky Way

One of the First Stars Formed in the Milky Way

The study presents the discovery of one of the stars with the least content of "metals" (heavy elements) known.


Black Holes Regulate Star Formation in Massive Galaxies

Black Holes Regulate Star Formation in Massive Galaxies

The centers of massive galaxies are among the most exotic regions in the universe.


Emission From the Center of a Galaxy Has a Serpentine Shape

Emission From the Center of a Galaxy Has a Serpentine Shape

A blazar is an astronomical object within an elliptical galaxy, at whose centre there is a supermassive black hole which emits jets of radiation and particles with huge energies.


Sharper Images for VLT Infrared Camera

Sharper Images for VLT Infrared Camera

ESO's Very Large Telescope (VLT) now has a second instrument working with the powerful Adaptive Optics Facility (AOF).


Hubble's Standout Stars Bound Together by Gravity

Hubble's Standout Stars Bound Together by Gravity

This image from the NASA/ESA Hubble Space Telescope reveals a glistening and ancient globular cluster named NGC 3201 -- a gathering of hundreds of thousands of stars bound together by gravity.


Odd Star Behavior Reveals Lonely Black Hole Hiding In Giant Star Cluster

Odd Star Behavior Reveals Lonely Black Hole Hiding In Giant Star Cluster

Astronomers using ESO's MUSE instrument on the Very Large Telescope in Chile have discovered a star in the cluster NGC 3201 that is behaving very strangely.


Hubble Weighs in on Mass of Three Million Billion Suns

Hubble Weighs in on Mass of Three Million Billion Suns

In 2014, astronomers using the NASA/ESA Hubble Space Telescope found that this enormous galaxy cluster contains the mass of a staggering three million billion suns.


NASA's Great Observatories Team Up to Find Magnified and Stretched Image of Distant Galaxy

NASA's Great Observatories Team Up to Find Magnified and Stretched Image of Distant Galaxy

An intensive survey deep into the universe by NASA's Hubble and Spitzer space telescopes has yielded the proverbial needle-in-a-haystack: the farthest galaxy yet seen in an image that has been stretched and amplified by a phenomenon called gravitational lensing.


Space Telescopes Provide 3-D Journey Through Orion Nebula

Space Telescopes Provide 3-D Journey Through Orion Nebula

Astronomers and visualization specialists from NASA's Universe of Learning program have combined visible and infrared vision of the Hubble and Spitzer space telescopes to create an unprecedented, three-dimensional, fly-through view of the picturesque Orion Nebula, a nearby star-forming region.


A Repeating Fast Radio Burst from an Extreme Environment

A Repeating Fast Radio Burst from an Extreme Environment

New detections of radio waves from a repeating fast radio burst have revealed an astonishingly potent magnetic field in the source's environment, indicating that it is situated near a massive black hole or within a nebula of unprecedented power.


Black Hole Research Could Aid Understanding Of How Small Galaxies Evolve

Black Hole Research Could Aid Understanding Of How Small Galaxies Evolve

Scientists have solved a cosmic mystery by finding evidence that supermassive black holes prevent stars forming in some smaller galaxies.



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