Tag Archive for 'Star'

This Hubble image shows Messier 13, a globular cluster located 25,000 light-years away in the constellation of Hercules. Image credit: NASA / ESA / Hubble Heritage Team / STScI / AURA / C. Bailyn, Yale University / W. Lewin, MIT / A. Sarajedini, University of Florida / W. van Altena, Yale University.

Hubble Finds Slowly Cooling White Dwarfs in Messier 13

Sep 7, 2021 by News Staff

Using high-resolution observational of two very similar globular clusters, Messier 3 and Messier 13, astronomers have found an unexpected overabundance...

This Hubble image shows NGC 6717, a globular cluster located over 23,000 light-years away in the constellation of Sagittarius. The image is made up of observations from Hubble’s Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys (ACS) in the ultraviolet, near-infrared, and optical parts of the spectrum. It is based on data obtained through five filters. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / A. Sarajedini.

Hubble Focuses on Globular Cluster NGC 6717

Sep 6, 2021 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have produced an outstanding image of a distant globular cluster called NGC 6717. This Hubble image...

Fast-moving debris from a supernova explosion triggered by a stellar collision in the VT 1210+4956 system crashes into material thrown out earlier, and the shocks cause bright radio emission seen by the VLA. Image credit: Bill Saxton / NRAO / AUI / NSF.

Compact Object Collision with Companion Star Triggers Supernova Event

Sep 2, 2021 by News Staff

Using data collected by the Very Large Array Sky Survey (VLASS), astronomers have found evidence that a compact object — a black hole or neutron...

An artist’s conception of exoplanets in a dense star cluster. Image credit: Michael Bachofner.

Milky Way Galaxy’s Bulge Could Have Planetary Systems, Too

Aug 30, 2021 by Enrico de Lazaro

The Milky Way’s bulge is the ancient and crowded central hub of our Galaxy. It contains about one quarter of the total stellar mass of the Milky Way...

An artist’s impression of brown dwarf-like objects around TOI-148, TOI-587, TOI-681, and TOI-746b. Image credit: Roger Thibaut.

Astronomers Find Five Brown Dwarf-Like Objects with Masses near Hydrogen-Burning Limit

Aug 27, 2021 by News Staff

Using data from NASA’s Transiting Exoplanet Survey Satellite (TESS) and ground-based telescopes, astronomers have discovered five transiting companions...

This Hubble image shows NGC 2164, a young open cluster located some 160,000 light-years away in the constellation of Dorado. The color image is made up of observations from Hubble’s Wide Field Camera 3 (WFC3) in the ultraviolet, near-infrared, and optical parts of the spectrum. It is based on data obtained through four filters. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / J. Kalirai / Milone.

Hubble Space Telescope Images NGC 2164

Aug 23, 2021 by Enrico de Lazaro

A new image taken with the NASA/ESA Hubble Space Telescope provides a detailed look at an open cluster known as NGC 2164. This Hubble image shows NGC 2164,...

This image, captured by CSIRO’s ASKAP radio telescope, shows the Large Magellanic Cloud. Image credit: Pennock et al., doi: 10.1093/mnras/stab1858.

Astronomers Create New Radio Map of Large Magellanic Cloud

Aug 19, 2021 by News Staff

Astronomers using CSIRO’s Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope have observed the Large Magellanic Cloud, a small satellite...

Stretching 3,300 light-years, a collection of young stars and star-forming clouds in the Sagittarius arm of our Milky Way Galaxy is the first major structure identified with such a dramatically different orientation relative to an arm. The background image shows the location of the splinter in the Milky Way. The yellow region in the center of the image is the Galaxy’s bright and crowded center. The Milky Way’s arms spiral around the center, and are full of stars and star-forming clouds of gas and dust. The inset provides a closer view of the structure, as well as its size and distance from the Sun. The nearby spiral arms are also noted. The star shapes indicate a star-forming region that may contain anywhere from dozens to thousands of stars. These stars and star-forming regions are moving through space together, at roughly the same speed and in the same direction. Image credit: NASA / JPL-Caltech.

3,300-Light-Year-Long Linear Structure Spotted in Milky Way’s Sagittarius Arm

Aug 18, 2021 by News Staff

Astrophysicists have mapped the 3D locations and velocities of star-forming regions in a segment of the Sagittarius arm using data from NASA’s Spitzer...

Red dwarfs flare actively and expel particles that can alter and evaporate the atmospheres of planets in their orbit. Image credit: Leibniz Institute for Astrophysics Potsdam / J. Fohlmeister.

Impact of Superflares on Planet Habitability around Small Stars May Be Weaker than Thought

Aug 9, 2021 by News Staff

Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) have studied large, long-duration flares in white light on red dwarfs, a class...

This composite image features a spectacular set of eight separate concentric rings around a black hole in the V404 Cygni binary system, captured using NASA’s Chandra X-ray Observatory and Neil Gehrels Swift Observatory. The image also contains optical data from the Pan-STARRS telescope in Hawaii that show the stars in the field of view. Image credit: NASA / CXC / University of Wisconsin-Madison / Heinz et al. / Pan-STARRS.

Astronomers Spot Giant X-Ray Rings around Stellar-Mass Black Hole

Aug 9, 2021 by News Staff

Astronomers using NASA’s Chandra X-ray Observatory and Neil Gehrels Swift Observatory have detected a set of eight X-ray rings around a low-mass black...

Red giants near and far sweep across the sky in this illustration. Image credit: NASA’s Goddard Space Flight Center / Chris Smith, KBRwyle.

TESS Detects 158,505 Pulsating Red Giant Stars

Aug 6, 2021 by News Staff

NASA’s Transiting Exoplanet Survey Satellite hunts for exoplanets, but its sensitive measurements of stellar brightness make it ideal for studying stellar...

An artist’s impression of a thermonuclear supernova event. Image credit: ESA / ATG Medialab / C. Carreau.

Astronomers Spot Spinning Runaway Star

Aug 4, 2021 by News Staff

Using the NASA/ESA Hubble Space Telescope and NASA’s Transiting Exoplanet Survey Satellite (TESS), astronomers have detected 8.9-hr variability in both...

An artist’s impression of the giant exoplanet Kepler-1704b. Image credit: Sci-News.com.

Failed Hot Jupiter Found in Wide Orbit around Kepler-1704

Aug 2, 2021 by Natali Anderson

Astronomers from the Giant Outer Transiting Exoplanet Mass (GOT ’EM) Survey have discovered a long-period giant planet circling the 7.4-billion-year-old...

An image of the Andromeda Galaxy from the Sardinia Radio Telescope after averaging over the whole bandwidth at 6.6 GHz. Image credit: Fatigoni et al., doi: 10.1051/0004-6361/202040011.

Sardinia Telescope Captures Most Detailed Radio Image Ever Seen of Andromeda Galaxy

Jul 30, 2021 by News Staff

Using the Sardinia Radio Telescope, a 64-m fully steerable radio telescope near San Basilio, Sardinia, Italy, an international team of astronomers has...

This Hubble image shows Messier 104. Image credit: NASA / ESA / Hubble Heritage Team / STScI / AURA.

Giant Stellar Stream Spotted around Sombrero Galaxy

Jul 22, 2021 by Enrico de Lazaro

The Sombrero galaxy likely merged with a relatively massive galaxy several billions years ago. In a new study published in the Monthly Notices of the Royal...

An artist’s impression of a neutron star. Image credit: Sci-News.com.

Neutron-Star Mountains May Be Only Fractions of Millimeters High, New Model Shows

Jul 19, 2021 by News Staff

Because of their compactness, neutron stars have an enormous gravitational pull around a billion times stronger than the Earth. This squashes every feature...

This image combines observations of the nearby galaxies NGC 1300, NGC 1087, NGC 3627 (top, from left to right), NGC 4254 and NGC 4303 (bottom, from left to right) taken with the Multi-Unit Spectroscopic Explorer on ESO’s Very Large Telescope. Image credit: ESO / PHANGS.

Astronomers Focus on Star-Forming Regions in Nearby Galaxies

Jul 16, 2021 by News Staff

Astronomers know that stars are born in clouds of gas, but what sets off star formation, and how galaxies as a whole play into it, remains a mystery. To...

NASA’s Parker Solar Probe approaching the Sun. Image credit: NASA’s Scientific Visualization Studio.

Parker Solar Probe Reveals New Insights on Electric Field of the Sun

Jul 14, 2021 by News Staff

Using data from NASA’s Parker Solar Probe, a team of solar physicists calculated the distribution of electrons within the electric field of the Sun;...

An artist’s impression of the potential lava world TOI-1807b. Image credit: NASA’s Goddard Space Flight Center / Chris Smith, KBRwyle.

TESS Discovers Planetary Systems around Two Young Co-Moving Stars

Jul 14, 2021 by News Staff

Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) have discovered four exoplanets orbiting TOI-2076 and TOI-1807, a pair of related...

An artist’s impression of HD 265435, a binary system located approximately 1,500 light-years away in the constellation of Gemini. Image credit: Mark Garlick / University of Warwick.

HD 265435 Will Explode as Type Ia Supernova in 70 Million Years, Astronomers Say

Jul 13, 2021 by News Staff

HD 265435 is a binary system with an orbital period of around 100 min that consists of a white dwarf and a hot subdwarf star. An artist’s impression...

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