Tag Archive for 'Star'

This Hubble image shows the open cluster NGC 2203. The image includes optical and near-infrared observations from Hubble’s Wide Field Camera 3 (WFC3). Three filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / L. Girardi

Hubble Space Telescope Views NGC 2203

Jul 27, 2020 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured a striking photo of the open cluster NGC 2203. This Hubble image shows the open cluster...

An artist’s impression of the Saturn-sized exoplanet TOI 813b. Image credit: Sci-News.com.

Astronomers Discover One of the Coolest Transiting Gas Giants

Jul 23, 2020 by Natali Anderson

Using data from NASA’s Transiting Exoplanet Survey Satellite (TESS) and the Next-Generation Transit Survey (NGTS), astronomers have discovered a transiting...

This image, captured by the SPHERE instrument on ESO’s Very Large Telescope, shows TYC 8998-760-1 accompanied by two giant planets, TYC 8998-760-1b and TYC 8998-760-1c. The two planets are visible as two bright dots in the center (TYC 8998-760-1b) and bottom right (TYC 8998-760-1c) of the frame. Other bright dots, which are background stars, are visible in the image as well. Image credit: ESO / Bohn et al.

Astronomers Directly Image Two Giant Exoplanets around Young Sun-Like Star

Jul 22, 2020 by Natali Anderson

Astronomers using the SPHERE (Spectro-Polarimetric High-contrast Exoplanet Research) instrument on ESO’s Very Large Telescope (VLT) have discovered a...

This two-panel illustration shows a black hole surrounded by a disk of gas, before and after the disk is partially dispersed. In the left panel, the ball of white light above the black hole is the black hole corona, a collection of ultra-hot gas particles that forms as gas from the disk falls into the black hole. The streak of debris falling toward the disk is what remains of a star that was torn apart by the black hole’s gravity. The right panel shows the black hole after the debris from the star has dispersed some of the gas in the disk, causing the corona to disappear. Image credit: NASA / JPL-Caltech.

Colliding Star Destroys Supermassive Black Hole’s Corona in Distant Galaxy

Jul 17, 2020 by News Staff

An international team of astronomers has watched as an X-ray corona of a supermassive black hole in the active galactic nucleus 1ES 1927+654 was abruptly...

A high-resolution image from the Extreme Ultraviolet Imager (EUI) on Solar Orbiter, taken with the HRIEUV telescope on May 30, 2020. The circle in the lower left corner indicates the size of Earth for scale. The arrow points to one of the ubiquitous features of the solar surface, called ‘campfires’ and revealed for the first time by these images. On May 30, Solar Orbiter was roughly halfway between the Earth and the Sun, meaning that it was closer to the Sun than any other solar telescope has ever been before. Image credit: ESA / NASA / Solar Orbiter / EUI Team / CSL / IAS / MPS / PMOD / WRC / ROB / UCL / MSSL.

Solar Orbiter Beams Back Its First Images of the Sun

Jul 17, 2020 by News Staff

Solar Orbiter, a space mission of international collaboration between ESA and NASA, made its first close approach to the Sun in mid-June and captured unique...

An artist’s impression of a thermonuclear supernova: the material ejected by the supernova will initially expand very rapidly, but then gradually slow down, forming an intricate giant bubble of hot glowing gas; eventually, the charred remains of the white dwarf that exploded will overtake these gaseous layers, and speed out onto its journey across our Milky Way Galaxy. Image credit: Mark Garlick / University of Warwick.

Thermonuclear Supernova Ejects White Dwarf from Binary System

Jul 15, 2020 by News Staff

A white dwarf star called SDSS J124043.01+671034.68 (SDSS J1240+6710) is traveling at 900,000 km/h (559,234 mph) through our Milky Way Galaxy. It also...

An artist’s impression of the immediate vicinity of the massive protostar G358.93-0.03-MM1. Image credit: Xi Chen, Guangzhou University / Zhi-Yuan Ren, National Astronomical Observatories, Chinese Academy of Science.

Astronomers Detect Spiral-Arm Structures around High-Mass Protostar

Jul 14, 2020 by Enrico de Lazaro

New observations of a high-mass protostar in the massive star-forming region G358.93-0.03 shed light on how these young stellar objects accumulate their...

This Hubble image shows the free-floating evaporating gaseous globule J025027.7+600849. The color image is made up of observations from Hubble’s Advanced Camera for Surveys (ACS) in the near-infrared and optical parts of the spectrum. Three filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / R. Sahai.

Hubble Spots Rare ‘Free-Floating Evaporating Gaseous Globule’

Jul 13, 2020 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured an outstanding image of J025027.7+600849 (J0250 for short), a rare type of stellar...

An artist’s impression of the flaring red dwarf AD Leonis, also known as Gliese 388 and BD+20 2465. Image credit: National Astronomical Observatory of Japan.

Astronomers Observe Superflare on Nearby Red Dwarf AD Leonis

Jul 9, 2020 by Enrico de Lazaro

A team of astronomers in Japan has detected 12 stellar flares, including a so-called superflare, on AD Leonis, an M-dwarf star located just 16 light-years...

Stellar streams arcing high over the Milky Way Galaxy are remnants of accreted dwarf galaxies and star clusters. Image credit: NASA / JPL-Caltech / R. Hurt, SSC & Caltech.

Astronomers Find Stellar Stream of Extragalactic Origin in the Vicinity of the Sun

Jul 9, 2020 by Enrico de Lazaro

A team of astronomers from Israel and the United States has discovered a vast stream of 250 stars of extragalactic origin in the vicinity of our Solar...

An artist’s impression of a pair of orbiting white dwarfs, ZTF J153932.16+502738.8. Image credit: Caltech / IPAC.

White Dwarfs are Primary Source of Carbon in Milky Way, Astronomers Say

Jul 7, 2020 by News Staff

Astronomers have analyzed a few carbon-oxygen white dwarfs in Milky Way’s old open clusters, and their findings help shed new light on the origin of...

An artist’s impression of the super-Neptune exoplanet TOI-1728b. Image credit: Sci-News.com.

Astronomers Find Largest Super-Neptune Yet around Red Dwarf Star

Jul 6, 2020 by Natali Anderson

Using NASA’s Transiting Exoplanet Survey Satellite (TESS) and several ground-based telescopes, astronomers have discovered and confirmed a warm super-Neptune...

An artist’s impression of the atmosphere of Antares. As seen with the naked eye (up until the photosphere), Antares is around 700 times larger than our sun, big enough to fill the Solar System beyond the orbit of Mars (Solar System scale shown for comparison). But ALMA and VLA showed that its atmosphere, including the lower and upper chromosphere and wind zones, reaches out 12 times farther than that. Image credit: NRAO / AUI / NSF / S. Dagnello.

Radio Telescopes Reveal Lukewarm Atmosphere of Nearby Red Supergiant Star Antares

Jul 3, 2020 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) and NSF’s Karl G. Jansky Very Large Array (VLA) have created the most detailed...

This multiwavelength mosaic, which combines more than 750 ALMA radio images and 9 Hubble infrared images, shows the star protocluster G286.21+0.17. ALMA reveals molecular clouds (purple) and Hubble reveals stars and glowing dust (yellow and red). Image credit: ALMA / ESO / NAOJ / NRAO / Y. Cheng et al / AUI / NSF / S. Dagnello / NASA / ESA / Hubble.

ALMA and Hubble Capture Celestial Fireworks in Massive Stellar Protocluster

Jul 2, 2020 by News Staff

Using the Atacama Large Millimeter/submillimeter Array (ALMA) and the NASA/ESA Hubble Space Telescope, astronomers have observed G286.21+0.17, a massive...

An artist’s impression of NGTS-4b and its star. Image credit: Mark Garlick / University of Warwick.

Remnant Core of Giant Planet Found Orbiting Sun-Like Star TOI-849

Jul 2, 2020 by Enrico de Lazaro

The newly-discovered planetary core, named TOI-849b, is a gas giant that was either stripped of its gaseous atmosphere or that failed to form one in its...

This illustration shows how the ultrahot Jupiter KELT-9b sees its host star. Image credit: NASA’s Goddard Space Flight Center / Chris Smith, USRA.

Ultrahot Jupiter KELT-9b Has Two Summers and Two Winters Every 36 Hours

Jul 1, 2020 by News Staff

New observations from NASA’s Transiting Exoplanet Survey Satellite (TESS) have enabled astronomers to improve their understanding of the bizarre environment...

Giant Starspots May Explain Bizarre Dimming of Betelgeuse

Jun 30, 2020 by Enrico de Lazaro

A new paper published in the Astrophysical Journal Letters points to the changes in the photosphere of the red supergiant star Betelgeuse as the source...

This illustration shows what the luminous blue variable star in PHL 293B could have looked like before its mysterious disappearance. Image credit: L. Calçada / ESO.

Massive Variable Star Mysteriously Disappears from Distant Dwarf Galaxy

Jun 30, 2020 by News Staff

Using the X-SHOOTER and the ESPRESSO (Echelle Spectrograph for Rocky Exoplanet- and Stable Spectroscopic Observation) instruments on ESO’s Very Large...

Compact System of Super-Earths Found around Lacaille 9352

Jun 26, 2020 by Sergio Prostak

A team of astronomers from the RedDots project has discovered two super-Earths and a candidate planet orbiting the nearby 4.57-billion-year-old red dwarf...

This Hubble image shows the Serpens Nebula, a stellar nursery about 1,300 light-years away. Within the nebula, in the upper right of the image, a shadow is created by the protoplanetary disk surrounding HBC 672. While the disk of debris is too tiny to be seen even by Hubble, its shadow is projected upon the cloud in which it was born. In this view, the feature, the Bat Shadow, spans approximately 200 times the diameter of our own Solar System. Image credit: NASA / ESA / STScI.

Hubble Observes ‘Flapping’ Shadow of HBC 672’s Planet-Forming Disk

Jun 26, 2020 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have captured striking images of HBC 672’s unseen protoplanetary disk casting a huge shadow across...

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