Tag Archive for 'Star'

Parker Solar Probe has flown through the solar corona and sampled particles and magnetic fields there. Image credit: NASA’s Goddard Space Flight Center.

Parker Solar Probe Enters Magnetized Atmosphere of the Sun

Dec 15, 2021 by News Staff

The high temperatures and strong magnetic fields of the Sun’s upper atmosphere — the corona — form streams of the solar wind that expand...

In this illustration of the center of the Milky Way, stars are seen to be in close orbit around Sagittarius A*. Image credit: Gemini Observatory / NOIRLab / NSF / AURA / J. da Silva, Spaceengine / M. Zamani, NOIRLab.

Astrophysicists Make Most Precise Measurement Yet of Milky Way’s Central Black Hole Mass

Dec 15, 2021 by News Staff

Sagittarius A*, supermassive black hole at the center of our Milky Way Galaxy, has a mass of 4.3 million times that of the Sun, according to an analysis...

All-sky map of the Milky Way in motion using the Gaia data. Areas with significant motion are shown in black/purple and those with relatively low motion in yellow. A number of large scale filamentary disc structures are evident about the midplane. The map also shows the Magellanic Clouds and their connecting stellar bridge to left, while the Sagittarius dwarf galaxy currently being torn apart can be seen on the right (main body). Image credit: Laporte et al., doi: 10.1093/mnrasl/slab109.

Astronomers Find Fossil Spiral Arms in Milky Way Galaxy

Dec 15, 2021 by News Staff

Using data from ESA’s Gaia satellite and archival spectroscopic surveys, astronomers have mapped the Milky Way disk substructure at distances over 10,000...

WISE images of the BD+60 1417 system. Image credit: Léopold Gramaize / Backyard Worlds: Planet 9 project.

Jupiter-Like Planetary Object Spotted 146 Light-Years Away

Dec 13, 2021 by News Staff

A team of professional astronomers and citizen scientists from the Backyard Worlds: Planet 9 project has discovered a planetary-mass object co-moving with...

An artist’s impression of b Centauri b and its host stars. Image credit: ESO / L. Calçada.

SPHERE Directly Images Wide-Orbit Gas Giant in Nearby Binary System

Dec 9, 2021 by Enrico de Lazaro

Named b Centauri (AB)b (or b Centauri b), the newfound exoplanet is estimated to be only 15 million years old and 10 times the mass of Jupiter, according...

This image shows the Chamaeleon Infrared Nebula, which is located near the center of the even larger Chamaeleon I dark cloud. Image credit: International Gemini Observatory / NOIRLab / NSF / AURA / T.A. Rector, University of Alaska Anchorage & NSF’s NOIRLab / J. Miller, Gemini Observatory & NSF’s NOIRLab / M. Zamani, NSF’s NOIRLab / D. de Martin, NSF’s NOIRLab.

Chamaeleon Infrared Nebula Captured by Gemini South Telescope

Dec 9, 2021 by Enrico de Lazaro

Astronomers using the Gemini Multi-Object Spectrograph (GMOS) on Gemini South telescope have imaged the Chamaeleon Infrared Nebula, which is located near...

Astronomers Discover New Dark-Matter-Free Galaxy

Dec 7, 2021 by News Staff

Astronomers from the Netherlands, the United Kingdom and the United States have found no trace of dark matter in AGC 114905, a gas-rich ultra-diffuse galaxy...

Beta Crucis. Image credit: Naskies at en.wikipedia / CC BY-SA 3.0.

Astronomers Measure Mass and Age of Beta Crucis A

Dec 6, 2021 by News Staff

Beta Crucis is represented in the flags of Australia, Brazil, New Zealand, Papua New Guinea and Samoa. Beta Crucis. Image credit: Naskies at en.wikipedia...

An artist’s rendering of a classical nova. Image credit: David Hardy, www.astroart.org.

New Type of Binary Star Observed

Dec 3, 2021 by News Staff

Using new data from ESA’s Gaia star-mapping satellite, the Zwicky Transient Facility, and the Shane Telescope at Lick Observatory, astronomers have observed...

An artist’s impression of the sub-Earth exoplanet Gliese 367b. Image credit: SPP 1992 (Patricia Klein).

Iron-Rich Sub-Earth Exoplanet Found Orbiting Gliese 367

Dec 3, 2021 by News Staff

Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) have identified a dense, ultra-short-period sub-Earth planet transiting the bright,...

The dwarf spheroidal galaxy Leo I is 30 times smaller than the Milky Way Galaxy. Image credit: ESA / Gaia / DPAC / SDSS.

Dwarf Galaxy Leo I Hosts Strangely Massive Black Hole, Astronomers Say

Dec 2, 2021 by News Staff

A black hole in the center of a dwarf spheroidal galaxy called Leo I is almost as massive as the central black hole of our own Milky Way Galaxy. The dwarf...

This image, taken with the MUSE instrument on ESO’s Very Large Telescope, shows two bright galactic nuclei, each housing a supermassive black hole, in NGC 7727. Image credit: ESO / Voggel et al.

Astronomers Find Two Supermassive Black Holes in NGC 7727

Dec 1, 2021 by Enrico de Lazaro

The supermassive black hole pair, located in the peculiar galaxy NGC 7727, is about 89 million light-years away from Earth, making it the record holder...

Daly et al. used atom probe tomography to directly observe an average ~1 mol% enrichment in water and hydroxyls in the solar-wind-irradiated rim of an olivine grain from the S-type asteroid Itokawa. Image credit: Curtin University.

Part of Earth’s Water Came from the Sun, New Study Suggests

Nov 29, 2021 by News Staff

The solar wind, comprised of solar particles largely made of hydrogen ions, created water on the surface of dust grains carried on asteroids that smashed...

An artist’s rendition of the ultrahot Jupiter TOI-1518b and its parent star. Image credit: Sci-News.com.

Ultrahot Gas Giant Found Circling TOI-2109

Nov 29, 2021 by Natali Anderson

With an extremely short orbital period of 0.67 days (16 hours), the newly-discovered ultrahot Jupiter — named TOI-2109b — has the shortest...

Hubble captured a bright jet (orange object at the bottom center of the image) from the protostar Parengo 2042 in this image of NGC 1977. Image credit: NASA / ESA / Hubble / J. Bally, University of Colorado at Boulder / Gladys Kober, NASA & Catholic University of America.

Hubble Captures Bright Protostellar Jet in NGC 1977

Nov 25, 2021 by Enrico de Lazaro

The bright stellar jet is being emitted by Parengo 2042, a protostar that resides within the reflection nebula NGC 1977. Hubble captured a bright jet (orange...

This Hubble image shows a part of the Flame Nebula, a large star-forming region in the constellation Orion that lies about 1,400 light-years from Earth. Image credit: NASA / ESA / Hubble / K. Stapelfeldt, NASA’s Jet Propulsion Laboratory / Gladys Kober, NASA & Catholic University of America.

Hubble Looks for Protoplanetary Objects in Flame Nebula

Nov 24, 2021 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have spotted several ‘proplyds’ and ‘globulettes’ in the Flame Nebula. This Hubble image...

This artist’s illustration depicts what Chu et al. think is happening in the binary system KPD 0005+5106. The data suggest the white dwarf (blue sphere) is blasting a companion object (brown and red object on right), which is either a low-mass star or planet, with waves of heat and radiation. The white dwarf is also pulling material from the companion into a disk around itself, which the artist shows in orange, before it slams into its north and south poles. This process is contributing to the destruction of the companion through powerful gravitational forces. Image credit: NASA / CXC / M. Weiss / ASIAA / Chu et al.

Hard X-Ray Emission from White Dwarfs Reveals Their Hidden Companions

Nov 23, 2021 by News Staff

Using NASA’s Chandra X-ray Observatory and ESA’s XMM-Newton satellite, astronomers have investigated unusual X-ray activity in three white dwarfs:...

An artist’s impression of LAMOST J024048.51+195226.9, the fastest spinning confirmed white dwarf and only second ever magnetic propeller known. Image credit: Mark Garlick / University of Warwick.

Astronomers Spot Rapidly Spinning White Dwarf

Nov 23, 2021 by News Staff

A white dwarf in the binary system LAMOST J024048.51+195226.9 (J0240+1952 for short) completes a full rotation once every 24.93 seconds, making it the...

This Hubble image shows the Flame Nebula. Image credit: Hubble / NASA / ESA / N. Da Rio, University of Virginia / Gladys Kober, NASA & Catholic University of America.

Hubble Snaps Brilliant Image of Flame Nebula

Nov 22, 2021 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope shot this image of a large star-forming region known as the Flame Nebula. This Hubble image shows the Flame Nebula....

This Hubble image shows G035.20-0.74, a star-forming nebula located 7,143 light-years away in the constellation of Aquila. Image credit: NASA / ESA / J. Tan, Chalmers University of Technology / Gladys Kober, NASA & Catholic University of America.

Hubble Spots Colorful Star-Forming Nebula

Nov 18, 2021 by Enrico de Lazaro

A new image taken with the NASA/ESA Hubble Space Telescope provides a detailed look at the massive star-forming nebula G035.20-0.74. This Hubble image...

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