‘Pursuit of the universe’s expansion rate began in the 1920s with measurements by astronomers Edwin P. Hubble and Georges Lemaître. In 1998, this led to the discovery of “dark energy,” a mysterious ...

Last time I wrote about new data that overturns the standard cosmological model. Before anyone starts dusting off their ...

New measurements of the rate of expansion of the universe, led by astronomers at the University of California, Davis, add to a growing mystery: Estimates of a fundamental constant made with different ...

The big picture: Astronomers have observed something unusual in the data gathered by the Hubble Space Telescope: the universe seems to be expanding faster today than it was billions of years ago, ...

The Hubble Space Telescope captures stunning imagery of barred spiral galaxy UGC 678. The galaxy is located about 260 million ...

NGC 346, a massive star cluster, with star locations circled in yellow. Image: NASA, ESA, CSA, STScI, Olivia C. Jones (UK ATC), Guido De Marchi (ESTEC), Margaret Meixner (USRA) How planets evolve into ...

NASA is preparing to release high-resolution images of the interstellar comet 3I/ATLAS, which is the third rare object to ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Uranus and two of its moons, Miranda and Ariel. | Credit: Science: NASA, ESA, STScI, Christian ...

These are far-ultraviolet Hubble images of Mars near its farthest point from the Sun, called aphelion, on December 31, 2017 (top), and near its closest approach to the Sun, called perihelion, on ...

Our Milky Way galaxy doesn't just hover in space all by itself. There are a number of small satellite galaxies orbiting it like moons around a planet. Two of these galaxies, the Large and Small ...