Tag Archive for 'Star'

Flaring, active regions of the Sun are highlighted in this image combining observations from several telescopes. High-energy X-rays from NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) are shown in blue; low-energy X-rays from Japan’s Hinode spacecraft are green; and extreme ultraviolet light from NASA’s Solar Dynamics Observatory (SDO) is yellow and red. All three telescopes captured their solar images around the same time on April 29, 2015. Image credit: NASA / JPL-Caltech / GSFC / JAXA.

Sun’s Core Rotates Nearly 4 Times Faster than Its Surface, SOHO Data Reveal

Aug 2, 2017 by News Staff

Using data from the NASA/ESA Solar and Heliospheric Observatory (SOHO), solar physicists have found evidence of a type of seismic wave (gravity waves,...

SDSS DR14 image of the massive spiral galaxy NGC 3191; the cross-hairs mark the position of SN 2017egm. Image credit: SDSS.

SN 2017egm: ‘Heavy Metal’ Superluminous Supernova Discovered in NGC 3191

Aug 1, 2017 by News Staff

At a distance of 420 million light-years, the recently-discovered SN 2017egm is the nearest Type I superluminous supernova to date, and the first near...

This image of the superluminous supernova DES15E2mlf was taken with the Dark Energy Camera (DECam) gri-band filters mounted on the Blanco 4-m telescope at Cerro Tololo Inter-American Observatory in Chile on December 28, 2015, around the time when DES15E2mlf reached its peak luminosity. Image credit: D. Gerdes / S. Jouvel.

Astronomers Spot Most Distant Superluminous Supernova Yet

Jul 24, 2017 by News Staff

At a distance of 10 billion light-years, DES15E2mlf — a Type I superluminous supernova (SLSN-I) spotted by the Dark Energy Survey collaboration —...

Ross 128 (center), also known as HIP 57548 or IRAS 11451+0105, is a red dwarf star. It has 15% of the mass of the Sun and 21% of the Sun’s radius, but generates energy so slowly that it has only 0.036% of the Sun’s visible luminosity. Image credit: Sloan Digital Sky Survey.

Arecibo Observatory’s Radio Telescope Detects Strange Signals from Nearby Star Ross 128

Jul 18, 2017 by News Staff

Astronomers using the 305-m (1,000-foot) radio telescope at the Arecibo Observatory, Puerto Rico, recently detected ‘strange’ signals coming from Ross...

NASA’s Solar Dynamics Observatory captured an X-class solar flare erupting on the Sun on December 19, 2014. This image blends two wavelengths of extreme UV light, 171 (gold) and 131 (purple). Image credit: NASA / SDO / Duberstein.

Sun is Solar-Type Star After All

Jul 16, 2017 by News Staff

A study led by University of Montreal researchers has confirmed that our Sun is indeed a solar-type star. Published in the journal Science, the findings...

This artist’s impression shows the view from the surface of one of the exoplanets in the TRAPPIST-1 planetary system. Image credit: ESO / M. Kornmesser / Spaceengine.org.

Astrophysicists Identify Major Challenges for Development of Life on TRAPPIST-1 Planets

Jul 14, 2017 by News Staff

According to two separate teams of astrophysicists from the Harvard-Smithsonian Center for Astrophysics (CfA) and the Lowell Center for Space Science and...

Artist’s concepts of Saturn, Jupiter, EBLM J0555-57Ab and the star TRAPPIST-1. EBLM J0555-57Ab has a mass comparable to the current estimate for TRAPPIST-1, but has a radius that is nearly 30% smaller. Image credit: Amanda Smith.

Newly-Discovered Saturn-Size Star is Smallest Yet

Jul 12, 2017 by Natali Anderson

An international team of astronomers, led by the University of Cambridge, has announced the discovery of a low-mass star, called EBLM J0555-57Ab, roughly...

This is an artist's impression of the SN 1987A remnant. The image is based on real data and reveals the cold, inner regions of the remnant, in red, where tremendous amounts of dust were detected and imaged by ALMA. This inner region is contrasted with the outer shell, lacy white and blue circles, where the blast wave from the supernova is colliding with the envelope of gas ejected from the star prior to its powerful detonation. Image credit: ALMA / ESO / NAOJ / NRAO / Alexandra Angelich, NRAO / AUI / NSF.

Supernova Remnant SN 1987A Reveals Clues to How Stars are Born

Jul 11, 2017 by News Staff

Using the Atacama Large Millimeter/submillimeter Array (ALMA), two teams of astronomers have discovered a rich inventory of molecules at the center of...

This artist’s illustration portrays what the gravitationally lensed galaxy SGAS 1110 might look like up close. A sea of young, blue stars is streaked with dark dust lanes and studded with bright pink patches that mark sites of star formation. SGAS 1110 is one of more than 70 studied as part of the Sloan Giant Arcs Survey, an imaging survey that searched 240 galaxy clusters to find new examples of gravitational lensing. Image credit: NASA / ESA / Z. Levay, STScI.

Hubble Finds Patches of Newborn Stars in Galaxy 11 Billion Light-Years from Earth

Jul 7, 2017 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have captured a detailed image of an extremely distant, gravitationally lensed galaxy they believe...

A hypervelocity star leaving the Large Magellanic Cloud. Image credit: NASA / CXC / M.Weiss / Ruth Bazinet, CfA / Sci.News.

Hypervelocity Stars are ‘Runaways’ from Large Magellanic Cloud, Astronomers Say

Jul 5, 2017 by News Staff

Hypervelocity stars — ultrafast stars with speeds up to a few hundred miles per second above the average — were likely ejected from the Large...

Artist’s conception of an exoplanet’s atmosphere being stripped by the radiation from its parent star. Image credit: Mark A. Garlick / University of Warwick.

Atmosphere Stripping May Limit Habitability of Extrasolar Planets

Jul 2, 2017 by News Staff

Huge coronal mass ejections (CMEs) on the Sun produce extreme space weather effects at Earth. Models of solar CMEs have now been applied to M-dwarf and...

Artist’s impression of two hypervelocity stars speeding from the center of the Milky Way to its outskirts. Image credit: ESA / CC BY-SA 3.0 IGO.

ESA’s Gaia Satellite Spots Six Hypervelocity Stars

Jul 2, 2017 by News Staff

With the help of an artificial neural network, ESA’s Gaia satellite spotted six hypervelocity stars — stars whose velocity in the rest frame of...

The protostar FIR 3 with outflow that may have triggered the formation of the younger protostar FIR 4. Pullouts are individual VLA images of each protostar. Image credit: Osorio et al / NRAO / AUI / NSF.

Protostar May Have Triggered Formation of Another, Younger Star

Jun 28, 2017 by News Staff

Astronomers using NSF’s Karl G. Jansky Very Large Array (VLA) have found new evidence suggesting that a jet of fast-moving material ejected from an intermediate-mass...

This image from ALMA shows the M2 spectral-type supergiant star Betelgeuse. Image credit: ALMA / ESO / NAOJ / NRAO / E. O’Gorman / P. Kervella.

ALMA Analyzes Atmosphere of Supergiant Star Betelgeuse

Jun 28, 2017 by Sergio Prostak

Astronomers have used the Atacama Large Millimeter/submillimeter Array (ALMA) to observe the nearby supergiant star Betelgeuse. Beyond just delivering...

A view of the limb of the Sun. Image credit: NASA’s Goddard Space Flight Center Scientific Visualization Studio.

Researchers Uncover Origins of Solar Spicules

Jun 26, 2017 by News Staff

A team of solar physicists from the Bay Area Environmental Research Institute, University of Oslo and Lockheed Martin Solar and Astrophysics Laboratory...

This artist’s impression shows the dust and gas around a binary star system. Image credit: ESO / L. Calcada.

Low-Mass Stars are Born in Pairs, Astronomers Claim

Jun 19, 2017 by News Staff

According to a team of astronomers from Harvard University and the University of California, Berkeley, low-mass stars are always born with a companion,...

Artist’s impression of Orion KL Source I. The massive protostar is surrounded by a disk of gas and dust. The outflow is launched from the surface of the outer disk. Image credit: ALMA / ESO / NAOJ / NRAO.

ALMA Observes Massive Protostar in Kleinmann-Low Nebula

Jun 12, 2017 by News Staff

A team of astronomers has determined how the gas flow from a massive infant star is launched. The researchers used the Atacama Large Millimeter/submillimeter...

This illustration shows one possible scenario for the super-Earth HD 3167d. Image credit: NASA / JPL-Caltech.

HD 3167d: New Super-Earth Discovered around Nearby Star

Jun 11, 2017 by Natali Anderson

Dr. Jessie Christiansen, a staff scientist at the NASA Exoplanet Science Institute, and colleagues have discovered a ‘super-Earth’ exoplanet orbiting...

This image shows a region of star formation where methyl isocyanate was found. The insert shows the molecular structure of this chemical. Image credit: L. Calcada / ESO / Digitized Sky Survey 2.

ALMA Detects Prebiotic Molecule in Multiple Protostar System

Jun 8, 2017 by News Staff

Astronomers have harnessed the power the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile to detect methyl isocyanate — a chemical building...

This illustration reveals how the gravitation of the white dwarf Stein 2051B warps space and bends the light of a distant star behind it. The NASA/ESA Hubble Space Telescope captured images of Stein 2051B as it passed in front of the background star. During the close alignment, Stein 2051B deflected the starlight, which appeared offset by about 2 milli-arcseconds from its actual position. From this measurement, astronomers calculated that the white dwarf’s mass is roughly 68% of the Sun’s mass. Image credit: NASA / ESA / A. Field, STScI.

Hubble Measures Deflection of Star’s Light by Foreground White Dwarf

Jun 7, 2017 by News Staff

The first observation of displacement of a star due to bending of its light by another celestial body other than our Sun is revealed in new research. This...

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