Topic: Eris (Dwarf Planet)

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Pluto now has at least five moons. Can we go back to calling it a planet?

Long considered a planet, Pluto was reclassified as a 'dwarf planet' in 2006 by the International Astronomical Union. Will the discovery of a fifth moon prompt astronomers to reconsider?
"How I Killed Pluto and Why It Had It Coming" made Mike Brown a lot of enemies

Cal Tech astronomer and author Mike Brown helped to demote Pluto from planethood – and got a lot of hate mail as a result.
Should Pluto be restored as a planet? Experts weigh in.

New calculations indicate that Pluto might be the largest object in the outer solar system. Does it now deserve to be called a planet again?
This month, a rare view of dwarf planets Ceres and Pluto

Ceres and Pluto will come into opposition with the sun, offering a rare view of these two dwarf planets.

Doing Good

What happens when ordinary people decide to pay it forward? Extraordinary change...

Scott Budnick works in the dining room as customers arrive for a free meal at the Mathewson Street Friendship Breakfast in Providence, R.I.

Scott Budnick serves breakfast – with a side order of respect – to the homeless

Sunday breakfast at a Providence, R.I., church is more than a free meal. Half the volunteers are homeless themselves: 'It's their [own] breakfast that they're putting on.'

Topic: Eris (Dwarf Planet)

All Content

Pluto now has at least five moons. Can we go back to calling it a planet?

"How I Killed Pluto and Why It Had It Coming" made Mike Brown a lot of enemies

Should Pluto be restored as a planet? Experts weigh in.

This month, a rare view of dwarf planets Ceres and Pluto

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