Astronomy News | Sci.News

Fomalhaut b Doesn’t Exist, Astronomers Say

Apr 21, 2020 by News Staff

The directly-imaged massive exoplanet Fomalhaut b is actually a dispersing cloud of dust, produced by a catastrophic collision between two large planetesimals...

Hubble captured this image of the interstellar comet 2I/Borisov on December 9, 2019. Image credit: NASA / ESA / Hubble / K. Meech, University of Hawaii / D. Jewitt, University of California, Los Angeles.

Interstellar Comet 2I/Borisov Has Unusual Chemical Composition

Apr 21, 2020 by News Staff

Comets spend most of their lives at large distances from any star, during which time their interior compositions remain relatively unaltered. Cometary...

A simulated galaxy image from the FIRE-2 project, representing a structure spanning more than 200,000 light-years, shows the prominent plumes of young blue stars born in gas that was originally rotating and then blown radially outward by supernova explosions. Image credit: Sijie Yu / University of California Irvine.

Stars Born in Outflows May Populate Halos of Milky Way-Like Galaxies

Apr 20, 2020 by News Staff

Clusters of supernovas can cause the birth of scattered, eccentrically orbiting stars in outer halos of Milky Way-mass galaxies, according to new research...

This Hubble image shows the dwarf elliptical galaxy LEDA 29388. Image credit: NASA / ESA / Hubble / T. Armandroff.

Hubble Observes Little-Know Dwarf Elliptical Galaxy

Apr 20, 2020 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have obtained a remarkable view of the dwarf galaxy LEDA 29388. This Hubble image shows the dwarf...

Star Hurtling around Milky Way’s Central Black Hole Validates Einstein’s General Relativity

Apr 17, 2020 by News Staff

At the center of the Milky Way lurks Sagittarius A*, a supermassive black hole that is four million times the mass of the Sun. Located 26,000 light-years...

Red Dwarf Kepler-1649 Has Earth-Sized Exoplanet in Habitable Zone

Apr 16, 2020 by Enrico de Lazaro

Astronomers using data from NASA’s Kepler Space Telescope have discovered an Earth-sized planet in the habitable zone of a low-mass star called Kepler-1649. An...

V906 Carinae (circled) shines near peak brightness in this image taken on March 23, 2018, three days after the nova was discovered. The beautiful cloud of gas and dust dominating the picture is part of the Carina Nebula. Image credit: A. Maury / J. Fabrega.

Astronomers Track Shock Waves in Nova V906 Carinae

Apr 15, 2020 by News Staff

A nova is a sudden, short-lived brightening of an otherwise inconspicuous star. It occurs when a stream of hydrogen from a companion star flows onto the...

Astronomers Spot Most Powerful Supernova Explosion

Apr 15, 2020 by News Staff

An international team of astronomers has detected the brightest and most energetic known supernova: SN 2016aps. An artist’s illustration of a supernova....

An ‘Oumuamua-like object produced by a simulation of the tidal disruption scenario. Image credit: Y. Zhang / NAOC / M. Kornmesser / ESO.

New Theory Explains Odd Properties of Interstellar Object Oumuamua

Apr 14, 2020 by News Staff

A due of researchers used numerical simulations to show that interstellar objects like ‘Oumuamua, a fast moving, cigar-shaped object of extrasolar origin...

TESS Discovers Unusual Ancient System with Two Hot Gas Giants

Apr 14, 2020 by Natali Anderson

Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) have discovered a planetary system of two giant planets — a Neptune-sized...

This Hubble image shows NGC 2906, a spiral galaxy located 145 million light-years away in the constellation of Leo. The color image was made from separate exposures taken in the visible and near-infrared regions of the spectrum with Hubble’s Advanced Camera for Surveys (ACS) instrument. Two 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 / A. Filippenko.

Hubble Space Telescope Captures Beautiful Image of NGC 2906

Apr 13, 2020 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured a vivid image of a star-forming spiral galaxy called NGC 2906. This Hubble image shows NGC 2906, a spiral...

An artist’s conception of 2MASS J10475385+2124234 illustrates magnetic field and atmosphere’s top, which were observed at different wavelengths to determine wind speeds. Image credit: Bill Saxton, NRAO / AUI / NSF.

Powerful Winds Blow in Atmosphere of Nearby Brown Dwarf

Apr 10, 2020 by News Staff

Brown dwarfs are cool, dim objects that have a size between that of a gas giant, such as Jupiter or Saturn, and that of a Sun-like star. Sometimes called...

Catastrophic Collapse of Giant Stars’ Magnetic Fields Powers Gamma-Ray Bursts

Apr 9, 2020 by News Staff

Gamma-ray bursts are the most energetic explosions in the Universe, beaming out huge jets of light-emitting plasma, which travel through space at 0.99...

This artist’s impression shows the evolution of the Universe beginning with the Big Bang on the left followed by the appearance of the Cosmic Microwave Background. The formation of the first stars ends the cosmic dark ages, followed by the formation of galaxies. Image credit: M. Weiss / Harvard-Smithsonian Center for Astrophysics.

Universe is Anisotropic on Large Scales, New Study Suggests

Apr 9, 2020 by News Staff

Space-based X-ray observations of hundreds of galaxy clusters suggest that the Universe may be different depending on which way astronomers look. The study...

This artist’s impression illustrates how high-speed jets from supermassive black holes would look. Image credit: NASA / ESA / Hubble / L. Calçada, ESO.

Astronomers Observe Relativistic Jet from Two Merging Spiral Galaxies

Apr 8, 2020 by News Staff

Astronomers using the 8.2-m Subaru Telescope report the first unambiguous detection of a relativistic jet — a beam of charged particles that travels...

Venus in real colors, processed from Mariner 10 images. Image credit: Mattias Malmer / NASA.

Sulfur Gases May Play Prominent Role in Photochemistry of Exoplanet Atmospheres

Apr 7, 2020 by News Staff

In a new study published in the journal Nature Astronomy, a team of planetary researchers from the United States and France studied the photochemical role...

An artist’s impression of the super-Earth Gliese 338Bb and its stars. Image credit: Sci-News.com.

Gliese 338Bb: Super-Earth Found in Nearby Binary System

Apr 6, 2020 by Natali Anderson

Astronomers using the CARMENES spectrograph at Calar Alto Observatory in Spain have discovered a super-Earth exoplanet orbiting an M-dwarf star in the...

This Hubble image shows the spiral galaxy NGC 2273. 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). 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. Greene.

Hubble Space Telescope Spots Multiring Galaxy

Apr 6, 2020 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has produced an outstanding image of a spiral galaxy called NGC 2273. This Hubble image shows the spiral galaxy NGC...

Intermediate-Mass Black Hole Found in Outskirts of Lenticular Galaxy

Apr 1, 2020 by News Staff

A bright X-ray source in a massive star cluster in the outskirts of 6dFGS gJ215022.2-055059, a barred lenticular galaxy located about 806 million light-years...