Tag Archive for 'Universe'

According to Meurer et al, galaxies behave as clocks, rotating once a billion years at the very outskirts of their discs. This Hubble image shows the face-on spiral galaxy Messier 101. Image credit: NASA / ESA / K. Kuntz, JHU / F. Bresolin, University of Hawaii / J. Trauger, JPL / J. Mould, NOAO / Y.-H. Chu, UIUC / STScI.

Cosmic Clocks: Galaxies Behave Like Clocks, Rotating Once Every Billion Years

Mar 15, 2018 by News Staff

An international team of astronomers from Australia, China and the United States has discovered that all galaxies rotate once every billion years, no matter...

Astronomers Find ‘Relic Galaxy’ in Milky Way’s Backyard

Mar 14, 2018 by News Staff

NGC 1277, a lenticular galaxy in the constellation Perseus, about 220 million light-years from us, has remained essentially unchanged for the past ten...

This illustration shows three steps Professor Riess and co-authors used to measure the Hubble constant to an unprecedented accuracy, reducing the total uncertainty to 2.3%. Image credit: NASA / ESA / A. Field, STScI / A. Riess, STScI & JHU.

Hubble Measures Universe Expansion, Gets Intriguing Hints of ‘New Physics’

Mar 12, 2018 by News Staff

A team of U.S. astronomers has used the NASA/ESA Hubble Space Telescope to make a new measurement of the Hubble constant, the rate at which the Universe...

Propagation of waves through an astrophysical disk can be understood using the Schrödinger Equation. Image credit: James Tuttle Keane, California Institute of Technology.

Massive Astronomical Objects Governed by Schrödinger Equation

Mar 6, 2018 by News Staff

Surprisingly, the Schrödinger Equation — the fundamental equation of quantum mechanics — emerges while studying massive astronomical structures. Propagation...

Artist’s rendering of how the first stars in the Universe may have looked. Image credit: N.R. Fuller, National Science Foundation.

Astronomers Detect Signal from Universe’s Earliest Stars

Mar 1, 2018 by News Staff

Using the Experiment to Detect Global EoR Signature (EDGES), a small ground-based radio telescope at CSIRO’s Murchison Radio-astronomy Observatory in...

A massive black hole can be seen at the center of a faraway galaxy in this artist’s concept. Image credit: NASA / JPL-Caltech.

Astronomers Find Ultramassive Black Holes in Distant Cluster Galaxies

Feb 21, 2018 by News Staff

Using NASA’s Chandra X-ray Observatory, astronomers have found evidence for what is likely the most massive black holes ever detected. A massive black...

DES16C2nm. Image credit: M. Smith / DES Collaboration.

Astronomers Spot Most Distant Supernova Yet: DES16C2nm

Feb 20, 2018 by Enrico de Lazaro

Astronomers have discovered a supernova that occurred 10.5 billion years ago, when the Universe was less than a quarter of its present age. DES16C2nm....

This high-resolution scanning electron microscope image shows an unusual tube-like structural form that is less than 1/100th the width of a human hair in size found in the Martian meteorite ALH84001. Image credit: NASA.

How Will Humanity React to Discovery of Extraterrestrial Life?

Feb 20, 2018 by News Staff

How will humans react to the discovery of alien life? Speculation on this topic abounds, but empirical research is practically non-existent. In a paper...

This artist’s impression shows a gamma-ray burst in a star forming region. Image credit: L. Calçada / ESO.

Physicists Create Mini Gamma-Ray Burst in the Lab

Jan 24, 2018 by News Staff

An international team of physicists has created the first small-scale replica of gamma ray bursts in a laboratory, opening up a whole new way to investigate...

This image from the NASA/ESA Hubble Space Telescope shows the Cartwheel Galaxy. The image is based on earlier Hubble data of the Cartwheel that was reprocessed in 2010, bringing out more detail in the image than seen before. Image credit: NASA / ESA / Hubble.

NASA Releases Stunning Photo of Cartwheel Galaxy

Jan 21, 2018 by News Staff

NASA has released the sharpest image ever taken of the Cartwheel Galaxy, a lenticular galaxy in the constellation Sculptor. This image from the NASA/ESA...

Berliner et al review current virology research pertinent to astrobiology and propose ideas for future astrovirology research foci. Image credit: Arek Socha / FL.

Viruses Are Everywhere, Maybe Even in Space, Biologists Say

Jan 19, 2018 by News Staff

Viruses are the most abundant and one of the least understood biological entities on modern Earth. They might also exist in space, but as of yet scientists...

Salmon et al were able to detect a hint of light from SPT0615-JD because it was magnified as it passed around the massive galaxy cluster SPT-CL J0615-5746 as it traveled towards Earth. Image credit: NASA / ESA / B. Salmon, STScI.

Gravitational Lens Magnifies and Stretches Image of Distant Galaxy

Jan 17, 2018 by News Staff

Thanks to the presence of a cosmic zoom lens, Hubble and Spitzer space telescopes got a uniquely close-up look at one of the farthest galaxies ever seen. Salmon...

This illustration shows NASA’s NICER mission at work aboard the International Space Station. Image credit: NASA’s Goddard Space Flight Center.

NASA Engineers Demonstrate Pulsar-Based Navigation in Space

Jan 16, 2018 by News Staff

NASA engineers have successfully demonstrated X-ray navigation in space — a capability that could revolutionize NASA’s ability in the future to...

This image shows the SDSS J1354+1327 galaxy in a composite image with data from Chandra (purple), and Hubble (red, green and blue). The inset box contains a close-up view of the central region around SDSS J1354+1327’s supermassive black hole. The larger companion galaxy, SDSS J1354+1328, is shown to the north. Image credit: NASA / CXC / University of Colorado / STScI/ J. Comerford et al.

Astronomers Spot ‘Flickering’ Supermassive Black Hole

Jan 15, 2018 by News Staff

A rapidly growing supermassive black hole — known as an active galactic nucleus — in the center of a distant galaxy appears to have consumed...

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 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...

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...

Research conducted in laboratories has previously shown that bacteria can stay alive at extremely cold temperatures, but the new study by Redeker et al is the first time that bacteria have been observed altering the polar snow environment in situ. Image credit: Robyn M.

Researchers Directly Observe Microbial Activity in Polar Snow for First Time

Dec 21, 2017 by News Staff

An international team led by University of York researchers has directly observed microbial activity in Antarctic and Arctic snow — an environment...

3.465-billion-year-old fossil microbes indicate that life in the Universe is common. Image credit: Reimund Bertrams.

Study: Simple Life Forms are Common throughout Universe

Dec 19, 2017 by News Staff

A detailed analysis of 3.465-billion-year-old microbial microfossils provides evidence to support an increasingly widespread understanding that life in...

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