News

NuSTAR Observes the Sun with MaGIXS

September 14th, 2021

With the goal of understanding why the Sun’s corona is so much hotter than its surface, NuSTAR obtained high-energy X-ray observations of the solar corona in coordination with the July 30th suborbital sounding rocket flight of the Marshall Grazing Incidence X-ray Spectrometer (MaGIXS) low-energy X-ray instrument.
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NuSTAR and XMM-Newton See Light Echo from Behind a Black Hole

August 4th, 2021

For the first time, astronomers have singled out light coming from behind a black hole, enabling them to study the processes on its far side.
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Seeing Some Cosmic X-Ray Emitters Might Be a Matter of Perspective

July 9th, 2021

Known as ultraluminous X-ray sources, the emitters are easy to spot when viewed straight on, but they might be hidden from view if they point even slightly away from Earth.
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Uncovering the Hidden Black Holes

June 25th, 2021

From a carefully selected sample of nearby galaxies hosting actively accreting supermassive black holes, astronomers use NuSTAR to find that a third of the black holes are hidden behind thick columns of gas and dust.
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NuSTAR's 9th Anniversary

June 13th, 2021

9 years of bringing the High Energy X-ray sky into Focus
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NuSTAR GO cycle-7 proposal selection announced

April 26th, 2021

The NuSTAR General Observer (GO) cycle-7 proposal selection has been released. The full list of proposals, targets, and exposure times is available from the NuSTAR GO website at HEASARC. Cycle-7 observations are planned to commence on June 1st, 2021.
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Telescopes Unite in Unprecedented Observations of Famous Black Hole

April 14th, 2021

Some of the world’s most powerful telescopes simultaneously observed the supermassive black hole in galaxy M87, the first black hole to be directly imaged.
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A Tale of Two Coronae: Solving the Mystery of the “Soft Excess”

March 26th, 2021

Astronomers are investigating the mystery of the “soft excess” of low-energy X-ray emission often seen from accreting supermassive black holes. This enigmatic component can carry a large fraction of the X-ray flux, but is poorly understood. Multiple theories have been suggested. Simultaneous observations with NuSTAR (at high energy X-rays) and XMM-Newton (at low-energy X-rays) provide a powerful combination to investigate its origin.
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Shredded star may have caused luminous X-ray transient in a galaxy far, far away

March 12th, 2021

A serendipitous X-ray flare detected by NASA’s Swift observatory is likely associated with a supermassive black hole at the core of a distant galaxy shredding a star that wandered too close.
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Reclusive Neutron Star May Have Been Found in Famous Supernova

February 23rd, 2021

What remains of the star that exploded just outside our galaxy in 1987? Debris has obscured scientists’ view, but two of NASA’s X-ray telescopes have revealed new clues.
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After-Flare Detected from Black Hole Dance

October 13th, 2020

NuSTAR detects after-flare caused by black hole crashing through the accretion disk of a more massive black hole.
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Measuring the masses of magnetic white dwarfs: A NuSTAR Legacy Survey

September 22nd, 2020

Astronomers have used NASA’s NuSTAR to weigh nearly two dozen extremely magnetic dead stars and found that they are heavier than expected.
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NuSTAR and XMM-Newton observe a dusty shroud sparkling in X-rays

September 15th, 2020

X-ray observations of a young massive star in a close orbit with the compact remnant of a collapsed star by NASA’s NuSTAR and ESA’S XMM-Newton satellites reveal properties of extreme stellar winds and improve our understanding of how stars evolve.
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NUC self nominations 2020

September 4th, 2020

NuSTAR is seeking letters of self-nomination for people to rotate onto the NuSTAR Users' Committee (NUC). The NUC provides community advice and feedback to the project and NASA Headquarters, and helps ensure the interests of the guest investigator community are well-served by the project. Due date for self nomination letters is October 2nd, 2020.
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Hidden in Plain Sight: Monster Black Holes Found in Nearby Galaxies

July 29th, 2020

NASA’s NuSTAR satellite has observed the faintest growing supermassive black holes in our cosmic backyard, and found that some of them are actually luminous “monsters” hiding behind thick clouds of dust and gas.
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Runaway Star Might Explain Black Hole's Disappearing Act

July 16th, 2020

The telltale sign that the black hole was feeding vanished, perhaps when a star interrupted the feast. The event could lend new insight into these mysterious objects.
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NuSTAR's Reaches its 8th Launch Anniversary

June 19th, 2020

NuSTAR reached its 8th launch anniversary on June 13th, 2020
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A Cosmic Baby Is Discovered, and It's Brilliant

June 17th, 2020

Astronomers tend to have a slightly different sense of time than the rest of us. They regularly study events that happened millions or billions of years ago, and objects that have been around for just as long. That's partly why the recently discovered neutron star known as Swift J1818.0-1607 is remarkable: A new study in the journal Astrophysical Journal Letters estimates that it is only about 240 years old - a veritable newborn by cosmic standards.
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Monitoring the First Ultraluminous Pulsar

May 22nd, 2020

Bachetti and collaborators recently published a comprehensive, multi-year study of the pulsation history of M82 X-2, the first example of the new class of extremely luminous X-ray binary that NuSTAR discovered in 2014.
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Changes in a Neutron Star Binary Accretion Disk during Outburst

May 15th, 2020

Astronomers are observing the changes in the accretion disk around the neutron star X-ray binary 4U 1608-52. The system was tracked as it fades from outburst to quiescence by three NASA space telescopes, with NuSTAR observations suggesting that the disk puffs up and becomes transparent as the outburst fades.
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NuSTARDAS v1.9.2 released

April 13th, 2020

An update to the NuSTAR data analysis software (NuSTARDAS) v1.9.2 was released with HEASoft patch v6.27.1 on April 13th, 2020. This NuSTARDAS update is required for analysis of observations performed after March 16th, 2020.
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NuSTAR operations nominal during COVID-19 crisis

March 29th, 2020

NuSTAR observatory operations are continuing during the COVID-19 pandemic with staff from the Science and Mission Operations Centers (Caltech and UC Berkeley) supporting the mission remotely.
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Found: Three Black Holes on Collision Course

September 26th, 2019

Astronomers have spotted three giant black holes within a titanic collision of three galaxies. The unusual system was captured by several observatories, including three NASA space telescopes.
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NASA Satellite Spots a Mystery That's Gone in a Flash

September 4th, 2019

NASA's NuSTAR X-ray observatory saw a flash of light that could be produced only by an extremely energetic event. Scientists are investigating what could have caused the flare.
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Black Hole Image Makes History

April 10th, 2019

A black hole and its shadow have been captured in an image for the first time, a historic feat by an international network of radio telescopes called the Event Horizon Telescope (EHT). EHT is an international collaboration whose support in the U.S. includes the National Science Foundation.
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In Colliding Galaxies, a Pipsqueak Shines Bright

February 20th, 2019

In the nearby Whirlpool galaxy and its companion galaxy, M51b, two supermassive black holes heat up and devour surrounding material. These two monsters should be the most luminous X-ray sources in sight, but a new study using observations from NASA's NuSTAR mission shows that a much smaller object is competing with the two behemoths.
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Holy Cow! Mysterious Blast Studied with NASA Telescopes

January 10th, 2019

A brief and unusual flash spotted in the night sky on June 16, 2018, puzzled astronomers and astrophysicists across the globe. The event - called AT2018cow and nicknamed "the Cow" after the coincidental final letters in its official name - is unlike any celestial outburst ever seen before, prompting multiple theories about its source.
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NuSTAR Paper Models at the Summer Skies Event

July 26th, 2018

On Thursday, July 26th, the Hudson River Museum was at Cross County Shopping Center, putting on a series of science projects as part of SummerFest on the Cross County Green. During the “Summer Skies” event, visitors participated in demonstrations and projects and created items to take home. They explored gravity and light, and made of a model of the NuSTAR space telescope.
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NASA's NuSTAR Mission Proves Superstar Eta Carinae Shoots Cosmic Rays

July 3rd, 2018

A new study using data from NASA's NuSTAR space telescope suggests that Eta Carinae, the most luminous and massive stellar system within 10,000 light-years of Earth, is accelerating particles to high energies - some of which may reach our planet as cosmic rays.
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Beaming with the Light of Millions of Suns

February 26th, 2018

A Caltech-led astronomy team is homing in on the nature of extreme objects known as ultraluminous X-ray sources.
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