How would you measure the masses of objects as big as stars, galaxies and black holes? With solar mass. And you can thank Sir Isaac Newton for that. more
Using data provided by NASA's Chandra spacecraft, astronomers have identified a new unusual ultraluminous X-ray source (ULX) in the elliptical galaxy Messier 86. The newly found ULX, designated... more
Turning your smartphone in a tool to identify celestial objects in real time is easy and a big help. The image shows a sky enthusiast searching for the... more
Based on computer simulations and new observations from the Atacama Large Millimeter/submillimeter Array (ALMA), researchers have found that the rings of gas surrounding active... more
Fabrication of the Cerro Chajnantor Atacama Telescope-prime (CCAT-p), a powerful telescope capable of mapping the sky at submillimeter and millimeter wavelengths, has now begun, marking a... more
The genus Homo is estimated to be between 1.5 and 2.5 million years old. At approximately the same time, in space, the light from our neighboring galaxy Andromeda... more
An enormous cosmic neighborhood that's home to more than 1,000 gravitationally bound galactic neighbors is bursting with thousands of stray star clusters, images from the Hubble... more
From their laboratories on a rocky planet dwarfed by the vastness of space, Clemson University scientists have managed to measure all of the starlight... more
The light emitted by all galaxies over the history of the Universe produces the extragalactic background light (EBL) at ultraviolet, optical, and infrared wavelengths. The EBL is a source of... more
Gazing across 300 million light-years into a monstrous city of galaxies, astronomers have used NASA's Hubble Space Telescope to do a comprehensive census of some of its most... more
After taking a short break from observing the cosmos, NASA's Hubble Space Telescope is officially back up and running, and the observatory captured a stunning new view of... more
In the early morning of October 27, the Hubble Space Telescope targeted a field of galaxies not far from the Great Square in the constellation Pegasus. Contained in the field were star-forming galaxies up... more
A new study reports characteristics of massive, ultracompact galaxies. It was published in the journal Astronomy & Astrophysics and was carried out by an international team led by Fernando Buitrago... more
Using data from ESA's Gaia spacecraft, astronomers have discovered a new Milky Way satellite in the constellation Antlia. The newly found dwarf galaxy, named Antlia 2, is several times larger when compared... more
Using ESA's XMM-Newton and NASA's NuSTAR space telescopes, a team of astronomers from Germany has detected a new ultra-luminous pulsar in the galaxy NGC 300. The finding of this pulsar, which received designation NGC 300 ULX1, is detailed... more
Brazilian astronomer Denilso Camargo has recently discovered five new globular clusters in the Milky Way's bulge that could offer essential clues on... more
The most distant object in space that we can see with our unaided eyes, the Andromeda Galaxy, is located more than 2 million light-years away — but you can see it in the early... more
Last week, astronomers announced the discovery of "hotspots" circling the drain of a massive black hole, proving a decade-old theory that a behemoth lies at the... more
Astronomers have identified a disrupted galaxy resembling a giant tadpole, complete with an elliptical head and a long, straight tail, about 300 million light years away from Earth. The discovery illuminates how... more
In 1974, the Arecibo Observatory made history by beaming the most powerful radio message into deep space ever made. The famous Arecibo Message was... more
In order to observe billions of faint galaxies and investigate the nature of the dark Universe, ESA's pioneering Euclid mission will require state-of-the-art optics. The first optical element to be delivered, the telescope's primary mirror (M1),... more
In 1974, the Arecibo Observatory made history by beaming the most powerful radio message into deep space ever made. The famous Arecibo Message was designed by the AO 74's staff, led by Frank Drake, and with... more
A team of astronomers from Israel, the U.S. and Russia have identified a disrupted galaxy resembling a giant tadpole, complete with an elliptical head and a long, straight tail, about 300 million... more
An international team of astronomers has observed the peculiar activity of a nuclear transient event known as PS1-13cbe. The transient, which occurred in the nucleus of the galaxy SDSS J222153.87+003054.2,... more
On Friday, November 16, a unique film and musical experience, inspired by the Hubble Space Telescope's iconic Deep Field image, premieres at the Kennedy Space Center. The film, titled Deep Field: The Impossible Magnitude of our... more
At first glance, a bright blue crescent immediately jumps out of this NASA/ESA Hubble Space Telescope image. Is it a bird? A plane? Evidence of extraterrestrial life? No—it's a galaxy. more
The path of light is bent by mass, an effect predicted by Einstein's theory of gravity, and when a massive galaxy or cluster lies along our line-of-sight to a more distant galaxy its matter will act as a lens to... more
A team of astronomers have identified a disrupted galaxy resembling a giant tadpole, complete with an elliptical head and a long, straight tail, about 300 million light years away from Earth. more
On Friday, November 16, a unique film and musical experience, inspired by the Hubble Space Telescope’s iconic Deep Field image, premieres at the Kennedy... more
YouTube Premium subscribers can now watch all 10 episodes of the new intergalactic thriller "Origin," and the first two are free for anyone to stream. more
Located 65 million light-years away is a blue supergiant star that once existed inside a cluster of young stars in the spiral galaxy NGC 3938, as shown in this artist's concept. It... more
Hidden in a distant galaxy cluster collision are wisps of gas resembling the starship Enterprise—an iconic spaceship from the "Star Trek" franchise. more
ALMA data show the most luminous galaxy in the universe has been caught in the act of stripping away nearly half the mass from at least three of its smaller... more
The most luminous galaxy in the universe has been caught in the act of stripping away nearly half the mass from at least three of its smaller neighbors, according to... more
The most luminous galaxy known appears to have devoured three smaller galaxies at the same time, revealing details about why it shone so brightly. more
An international team led by researchers from the IAC used data from the ESA satellite Gaia to measure the motion of 39 dwarf galaxies. This data... more
This captivating image from the NASA/ESA Hubble Space Telescope's Wide Field Camera 3 shows a lonely dwarf galaxy 100 million light-years away from Earth. This image depicts the blue compact dwarf galaxy ESO 338-4, which can be found... more
Merging galaxy clusters provide natural laboratories for astronomers to study cosmic phenomena. Igone Urdampilleta from SRON Netherlands Institute for Space Research uses the merger Abell 3376 to study how electrons rush through... more
Jairo Méndez Abreu and Adriana de Lorenzo-Cáceres, researchers at the Instituto de Astrofísica de Canarias (IAC), have discovered a peanut-shaped structure in the inner bar of a double-barred galaxy close to the Milky Way. Structures of this type, previously detected... more
An international team of scientists has carried out a comprehensive multi-wavelength study of one the merging galaxy clusters known as MACS J0417.5-1154. The research, available in... more
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