Mid-infrared flare observed in the galaxy NGC 3786

Using NASA's Wide-field Infrared Survey Explorer (WISE), astronomers from South Korea and China have detected a mid-infrared flare in an active spiral galaxy known as NGC 3786. The researchers assume that this peculiar flare ...

X-shaped radio galaxies might form more simply than expected

When astronomers use radio telescopes to gaze into the night sky, they typically see elliptical-shaped galaxies, with twin jets blasting from either side of their central supermassive black hole. But every once in a while—less ...

Astronomers detect a new cataclysmic variable system

Using NASA's Swift spacecraft, astronomers have discovered a new cataclysmic variable (CV) through its ultraviolet (UV) bursting activity. The newfound CV, designated TUVO-21acq, was detected as part of the Transient UV Objects ...

Search reveals eight new sources of black hole echoes

Scattered across our Milky Way galaxy are tens of millions of black holes—immensely strong gravitational wells of spacetime, from which infalling matter, and even light, can never escape. Black holes are dark by definition, ...

Astronomers inspect nova T Aurigae with Hubble

Using the Hubble Space Telescope (HST), astronomers from Villanova University have analyzed spectroscopic observations of a nearby old nova known as T Aurigae. Results of this study, published March 29 on the arXiv pre-print ...

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