This image shows the HR 8799 planets with starlight optically suppressed and data processing conducted to remove residual starlight. The star is at the center of the blackened circle in the image. The ...

In late 2008, astronomers announced the discovery of a multi-planet system orbiting the star HR 8799. The three planets were discovered the old-fashioned way: they were directly imaged! [A gallery of ...

Astronomers have been studying a star system discovered in 2008 by the W. M. Keck Observatory and Gemini Observatory from Hawaii. The star system is called HR 8799 and is 129 light-years away from ...

Astronomers have captured the first-ever spin measurements of HR 8799, the famed system that made history as the very first exoplanetary system to have its image taken. Discovered in 2008 by two ...

An unprecedented image of HR 8799, a star system 129 light-years away, has revealed a mysterious disc of material floating around its edge. The new image could explain the strange behavior of the ...

Maunakea, Hawaiʻi – Astronomers have captured the first-ever spin measurements of HR 8799, the famed system that made history as the very first exoplanetary system to have its image taken. The ...

Astronomers from the Keck Observatory in Maunakea, Hawaii have discovered water on a nearby planet known as HR 8799 c. HR 8799 c is only 179 light-years away from Earth, making it a relatively close ...

An animation demonstrating plausible orbits of the HR 8799 planets through one complete period (~465 years) of HR 8799b, the outermost planet. For each orbit of HR 8799b, HR 8799c and HR 8799d will ...

Astronomers have captured the first-ever spin measurements of HR 8799, the famed system that made history as the very first exoplanetary system to have its image taken. Astronomers have captured the ...