Galaxy clusters are formed by a dense packing of many galaxies, making them the most massive structures in the universe.

A test model of the Perseverance rover, designed to explore the surface of Mars, sits in a garage at NASA’s Jet Propulsion ...

Games mentioned in 2025 included 9 different Halo games, 12 different Zelda games, 13 different Final Fantasy games, and 15 ...

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...

Astronomers from Cardiff University, UK, have employed the Combined Array for Research in Millimeter-wave Astronomy (CARMA) ...

Though this hunt came up empty, the fact that 3I/ATLAS is only the third known object found in the solar system after ...

March 25: “Hurrah, and vote for suffrage! Don’t keep them in doubt.” —Febb Burn, a 47-year-old widow, in a letter to her son, ...

Mass Effect actors Jennifer Hale and Mark Meer share their thoughts on potentially reprising their roles as Commander Shepard ...

From Athens to the Abbasids to today’s Anglosphere, creativity and commerce drive greatness Ninth century Baghdad, seat of the Abbasid Caliphate, was designed as a perfect circle to honor the Greek ...

A puzzling ultraviolet light seen across the Milky Way could come from the destruction of nuggets of dark matter, the mysterious stuff that makes up around a quarter of the matter and energy in the ...

On Dec. 15, 1612, the Andromeda galaxy was seen through a telescope for the first time by a German astronomer named Simon Marius. [‘On This Day in Space’ Video Series on Space.com] The Andromeda ...