Somewhere in the direction of the constellation Sagittarius, about twenty-five thousand light-years away, sits the anchor of ...

The oldest pair of compact quasars ever observed has been found only 900 million years after the Big Bang. Scientists say ...

Gas swirling around the center of our Galaxy. The animation shows the gas at different infrared wavelengths, demonstrating ...

Primordial black holes are hypothetical objects that could have formed directly from dense clumps of matter in the very early ...

Astronomers confirm Gaia BH1, a roughly ten-solar-mass black hole just 1,600 light-years away, revealing dormant black holes ...

The LISA (Laser Interferometer Space Antenna) observatory, now in development, will detect gravitational waves, the tiny ...

Scientists searching for alien signals may have stumbled upon a rapidly spinning dead star near the Milky Way’s center, but ...

ALMA has found a huge jet of cool gas near the gamma-ray source LMC P3, adding support to a black hole over a pulsar as the ...

The oldest pair of compact quasars ever observed has been found only 900 million years after the Big Bang. Scientists say ...

Supernova impostor AT 2016blu erupted 27 times in 14 years without dying. NASA’s Chandra X-ray Observatory now confirms a ...

A sparkling Hubble image is helping astronomers explore whether an ancient star cluster once belonged to another galaxy.

Four-year brightening of changing-look black hole AT2022aamy confirmed. Its unusual spectrum may be first real-time test of ...