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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...

Two Interacting Gas Giants Orbit Sun-Like Star WASP-148

Jul 9, 2020 by Natali Anderson

Astronomers using the SuperWASP-North telescope on La Palma in the Canary Islands, Spain, and the SOPHIE spectrograph at the Observatoire de Haute-Provence,...

Dwarf planet Sedna. Image credit: NASA / JPL-Caltech / R. Hurt, SSC-Caltech.

New Research Helps Explain Peculiar Orbits and Clustering of Outer Solar System’s Detached Objects

Jul 8, 2020 by News Staff

Our Solar System contains a large population of icy bodies stretching well beyond the orbit of Neptune. These objects are remnants from the early formation...

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...

This composite image of Jupiter combines five JunoCam images taken on June 2, 2020, between 6:56 a.m. EDT (3:56 a.m. PDT) and 7:25 a.m. EDT (4:25 a.m. PDT). Image credit: NASA / JPL-Caltech / SwRI / MSSS / Kevin M. Gill / CC BY.

New Oval-Shaped Feature Spotted on Jupiter: Clyde’s Spot

Jul 6, 2020 by News Staff

An astronomer from South Africa has discovered a new ‘white oval’ in the southern hemisphere of the gas giant Jupiter. Jupiter as captured...

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...

This Hubble image shows the barred spiral galaxy NGC 7513. The color image was made from separate exposures taken in the visible and infrared regions of the spectrum with 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 / M. Stiavelli.

Hubble Snaps Image of Barred Spiral Galaxy NGC 7513

Jul 6, 2020 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured a striking photo of a bright, barred spiral galaxy called NGC 7513. This Hubble image shows the barred...

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...

An artist’s impression of the quasar Pōniuā`ena. Image credit: International Gemini Observatory / NOIRLab / NSF / AURA / P. Marenfeld.

Astronomers Find Monster Quasar in Early Universe

Jun 29, 2020 by News Staff

An international team of astronomers has discovered the second most distant quasar ever found. Named Pōniuā`ena and designated J100758.264+211529.207...

This Hubble image shows a flocculent spiral galaxy called NGC 2775. The image was made from separate exposures taken in the visible, ultraviolet and near-infrared regions of the spectrum with Hubble’s Wide Field Camera 3 (WFC3). 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 / J. Lee / PHANGS-HST Team / Judy Schmidt, www.geckzilla.com.

Hubble Spots Flocculent Spiral Galaxy

Jun 29, 2020 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured a spectacular image of the spiral galaxy NGC 2775. This Hubble image shows a flocculent...

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...

An artist’s impression of a four-planet system. Image credit: Sci-News.com.

Breakthrough Listen Scans Kepler-160 System for Alien Technosignatures

Jun 25, 2020 by Sergio Prostak

The Breakthrough Listen Initiative, the largest ever scientific research program aimed at finding evidence of alien civilizations, has conducted a search...

An artist’s rendition of a mystery compact object in ‘mass gap’ found by LIGO and Virgo gravitational wave detectors. Image credit: LIGO / Caltech / MIT / R. Hurt, IPAC.

GW190814 Sheds Light on Mass Gap between Neutron Stars and Black Holes

Jun 25, 2020 by News Staff

The gravitational-wave signal GW190814, detected on August 14, 2019 by NSF’s Laser Interferometer Gravitational-Wave Observatory (LIGO) and the Virgo...