Scientists have identified a strange cosmic relic called Cloud-9 — a starless, gas-filled object dominated by dark matter.

A rogue comet from another star system is rewriting the textbook on how cosmic visitors behave deep inside our solar system.

As of Wednesday afternoon, the engineers had not yet isolated the fault. The trouble has been traced to one of the telescope’s channels that handles observations in the ultraviolet and visible-light ...

Galaxy merger Arp-Madore 417-391 is on display in this new image captured by the Hubble Space Telescope's Advanced Camera for Surveys (ACS). The merger is about 670 million light-years away from Earth ...

Some cosmic objects surprise by their unusual nature. This is the case for a cloud devoid of any stars, observed by ...

A team using @NASAHubble has made the first confirmed detection of a new type of astronomical object: a starless, gas-rich, ...

Hubble has revealed a strange cosmic object called Cloud-9, a dark matter–dominated cloud with no stars at all. Scientists ...

Astrophotographer Efrain Morales captured a rare, fleeting glimpse of the Hubble Space Telescope crossing the sun from Aguadilla, Puerto Rico.

CAPE CANAVERAL, Fla. — A pair of spacewalking astronauts overpowered a stubborn bolt and successfully installed a new piano-sized camera in the Hubble Space Telescope on Thursday, the first step to ...