Astronomers were puzzled by a black hole around 50 million times the mass of the sun with no stars, spotted by the James Webb ...

At first, there was nothing dramatic about the galaxy. ESO 130 G012 sits relatively close by cosmic standards, about 55 ...

On Jan. 15, 2025, the Gaia spacecraft took its last image. Then the craft ran a final round of engineering tests, fired its ...

In a patch of sky about 1. 2 billion light-years from Earth, astronomers have found a cosmic rarity: three galaxies caught in ...

From signs of life on Mars to an interstellar visitor and weakening dark energy, 2025 reshaped space science, raising the ...

Mars. From forming black holes to phantom dark energy, discover the cosmic mysteries astronomers uncovered last year.

In 2025, astronomers revealed nearby exoplanets, a rare interstellar comet, possible biosignatures on Mars, and an ...

The images were taken with 170-second exposures using the WFC3 UVIS (F350LP) camera at a central wavelength of 0.5851 micron, ...

It’s the greatest cosmic murder mystery of the year: How did a black hole destroy a star—and what kind of black hole is the culprit? Normally, so-called “gamma ray bursts,” sudden flashes of extremely ...

From new exoplanetary neighbors and a weakening dark energy to the best evidence for life on Mars and an interstellar comet ...

The scientist who discovered the black hole at the center of our galaxy reflects on social media and the unpredictable power ...