The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

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Although previous images showed that something was happening on Pluto, with an average temperature of -240C, many people assumed it was a cold and relatively dead world. That was until NASA's 'New ...

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering ...

NASA's New Horizons spacecraft conducted the first and only flyby of the Pluto system, culminating at the closest approach of that distant world in July 2015. Sailing onward, the probe carried out ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto turns out to have as much complexity as Mars or Earth, so much so that I ...

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary ...

NASA has delayed the launch of its latest space telescope, SPHEREx, and a Sun-focused mission called PUNCH. The two missions ...

Butch Wilmore and Suni Williams have nearly half a century of combined experience as astronauts. But this is just their third ...