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

A Canadian-led team of researchers has discovered a 'baby' galaxy cluster in the early universe surrounded by gas far hotter ...

The Milky Way is not the neat, flat pinwheel many of us learned about in school. Fresh data from precision star maps now show ...

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

For the first time, a shockwave propagating inside the jet of a celestial object presumed to be a pair of orbiting ...

NASA’s SPHEREx space telescope has mapped the entire sky in 102 infrared colors for the first time, revealing cosmic secrets and enabling 3D mapping of galaxies.

Scientists are developing new methods to turn black hole images into time-resolved 3D movies, revealing how plasma, jets, and gravity behave near event horizons ...

Less than a year into its mission, NASA’s SPHEREx has already completed its first full survey of the sky, producing a ...

NASA's SPHEREx has mapped the entire sky in 102 infrared colors, revealing hidden details about galaxies and the early universe.

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

Dark energy is the mysterious force thought to be accelerating the universe. . But a new study hints that scientists may have ...

A lucky alignment of space- and ground-based telescopes has enabled researchers to nail down the mass of a rogue planet for the first time. Unlike worlds in our Solar System, rogue planets do not ...