Caltech researchers have mathematical evidence suggesting a Neptune-sized Planet X may exist deep in the solar system in an orbit far beyond Pluto. Planet X could have a mass about 10 times that of ...

The Hubble Space Telescope captured the rare merger of two galaxies, which are forming what's been dubbed a "cosmic guitar." ...

A stunning Hubble image showcases a spiral galaxy seemingly intertwined with a nearby star—but looks can be deceiving! This ...

Even the little-understood Oort Cloud, at the outer edges of our solar system beyond view, has a partly spiral structure.

Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the ...

Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the ...

The nearby Large Magellanic Cloud, a dwarf galaxy of our own Milky Way, harbors a heretofore unconfirmed supermassive black ...

This NASA/ESA Hubble Space Telescope image of a vibrant spiral galaxy called NGC 5042 resides about 48 million light-years ...

In a new book release, two scientists combine forces to explain the discoveries, developments and theories made in the realm ...

Young stars coming to life out of the proverbial celestial dust is perhaps the most captivating sight in the cosmos. Check ...

The Milky Way is one of the biggest in the observable universe: Even if you traveled at the speed of light, it would take 100 ...

The small, bright core exhibits typical features of active galaxies, specifically Seyfert galaxies. At the same time, M94 is ...