A galaxy that has remained unchanged for 7 billion years — a rarity in the universe — has been observed by astronomers, offering a glimpse into cosmic history and adding to an enigmatic collection of ...

Bluish-white Regulus in Leo is moving toward the western horizon and sets around 10 p.m. in mid-July, followed a couple of ...

Chile's ALMA observatory, which houses some of the world's most powerful telescopes, has captured its most detailed images to ...

Mars appears low in the western sky for an hour or two after sunset throughout July. Spotting it will be easier with ...

Decades of stunning images have continued to spark our imagination thanks to 35 years of the Hubble Space Telescope.

April 24th, 1990: the Hubble Space Telescope ushers in a new era of space science. 35 years later, it’s taken nearly 1.7 million observations, or an average of about 130 per day. NASA has ...

NASA estimates that the Hubble Space Telescope has about 10 years of useful life before it burns up in an uncontrolled reentry into the Earth’s atmosphere.

Before NASA's Hubble Space Telescope captured its iconic Hubble Deep Field, some astronomers were hesitant to take the ambitious imagery. But the director of Hubble's science mission took the risk.

Thirty-five years ago, the Hubble Space Telescope was launched into orbit. It's been sending back galactic data and images ever since.