Astronomers Get Rare Glimpse of the 'Nasty' Lifestyles of Massive Stars

Artist’s illustration of the vast disk of gas surrounding the massive and bright Wolf-Rayet star NaSt1, affectionately nicknamed ‘Nasty 1’. Observations with the Hubble and Chandra space telescopes revealed that contrary to other Wolf-Rayet stars, NaSt1 is feeding material into its companion star (shown here by the bridge of bright material connecting the two […]

Stellar (and Planetary) Formation Near Milky Way's Supermassive Black Hole Possible, New Study Suggests

An artist’s illustration of the vicinity of the supermassive black hole in the center of the Milky Way galaxy, known as Sagittarius A* . Astronomers have discovered a population of more than 150 massive young stars (shown as blue dots) in recent years that orbit within 2 light-years from the black hole. Newer observational […]

Astronomers Measure Galactic Winds at Milky Way's Center, Detect Record-Breaking X-Ray Flares From Its Supermassive Black Hole

A composite image of the area around the supermassive black hole at the center of the Milky Way, known as Sagittarius A* (Sgr A*), taken with NASA’s Chandra X-ray space telescope. The colors in the main image represent medium, and high-energy X-rays as red, green, and blue respectively. The inset box shows a giant […]

Chandra X-Ray Observatory Helps Astronomers Weigh Most Massive Galaxy Cluster Discovered to Date

A composite, multi-wavelength image of the young galaxy cluster XDCP J0044.0-2033, also known as the Gioiello Cluster, which is located 9.6 billion light-years away. In the image, X-ray wavelengths appear purple, infrared appear as large red halos around some galaxies, and visible light appears as are red, green, and blue. Image Credit: X-ray: NASA/CXC/INAF/P.Tozzi, […]

New Research Suggests Potential Link Between Neutrinos and the Supermassive Black Hole at Milky Way's Center

An unprecedented view of the black hole at the center of the Milky Way Galaxy, known as Sagittarius A*, that was obtained with NASA’s Chandra X-ray Observatory. A new study has provided evidence that Sagittarius A* is a source of high-energy neutrinos. Image Credit: NASA/CXC/Univ. of Wisconsin/Y.Bai. et al.

In the new Hollywood sci-fi […]

NASA's NuSTAR Telescope Discovers 'Impossible' Ultra-Luminous Pulsar

NASA’s NuSTAR telescope recently discovered an ultra-luminous X-ray source (shown in the pink area in the circle) inside the nearby galaxy M82. This newly-discovered X-ray source was found to be powered by an extremely luminous pulsar, which produces the energy equivalent of 10 million Suns. Image Credit: NASA/JPL-Caltech

Our ever-more-detailed study of the Universe […]

Bizarre Universe: Massive Black Hole In Tiny Galaxy and Exoplanet That Makes Its Star Act Older Than It Is

Artist’s concept of the massive black hole in the dwarf galaxy M60-UCD1. Image Credit: NASA, ESA, STScI-RCC14-41a

The universe is a wild and weird place, and two recent findings from orbiting space telescopes illustrate just how bewildering it can be: a monster-sized black hole in one of the tiniest galaxies known and a huge exoplanet that is […]

Where's the Kaboom? Astronomers Detect No X-Ray Emission From Recent Supernova Explosion

The supernova SN 2014J, as imaged by NASA’s Chandra X-ray Observatory. This image contains Chandra data, where low-, medium-, and high-energy X-rays are red, green, and blue respectively. The boxes in the bottom of the image show close-up views of the region around the supernova in data taken prior to the explosion (left), as […]

NASA's X-Ray Space Telescope Celebrates 15 Years

Composite Chandra image of four supernovae: the Crab Nebula, Tycho, G292.0+1.8, and 3C58. Image Credit: NASA/CXC/SAO

The Chandra X-Ray Observatory, NASA’s space telescope which observes the universe using X-rays, has now completed its 15th year of operations, and astronomers are celebrating the anniversary with a series of special images from the orbiting observatory.

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Looking Beyond: NASA's Frontier Fields Possibly Finds One of the Youngest Galaxies in the Early Universe

This image of the galaxy cluster Abell 2744 was obtained with NASA’s Hubble Space Telescope, as part of the Frontier Fields program, designed to push the limits of how far we can see into the early universe. The zoomed image shows the region around the galaxy Abell2744_Y1, one of the most distant galaxy candidates […]