DO NOT PUBLISH YET - Pluto -- the Dwarf Planet Archive
21 November 2012, 01:01 PM ET
The dwarf planet Makemake is not quite the twin of Pluto once thought.
21 November 2012, 01:00 PM ET
Pluto was demoted to dwarf planet status in 2006, joining Eris, Haumea, Makemake and Ceres. All the dwarf planets are tinier than Earth's moon.
21 November 2012, 01:00 PM ET
See photos and illustrations of the distant icy dwarf planet Makemake.
20 November 2012, 10:29 AM ET
The Dwarf Planet pass in front of a distant star (occulation) was witnessed from several locations in South America. Data from, European observatories in Chile shows it is not like Pluto as previously thought due to a lack of atmosphere.
07 November 2012, 12:19 PM ET
The New Horizons spacecraft is expected to reach the dwarf planet Pluto in 2015
22 July 2012, 07:10 AM ET
What was your favorite space news story of the last week? Vote Now!
15 July 2012, 12:17 AM ET
What was your favorite space news story of the last week? Vote Now!
12 July 2012, 07:00 AM ET
The New Horizons probe will have to watch its step when it flies by Pluto in 2015.
11 July 2012, 05:17 PM ET
Dwarf planets can have moons, too.
11 July 2012, 02:33 PM ET
The basics about Pluto's newly discovered satellite.
11 July 2012, 01:33 PM ET
Dwarf planet Pluto has one giant moon, Charon, but now is known to have four more tiny satellites.
11 July 2012, 12:12 PM ET
Using the Hubble Space Telescope, astronomers have discovered a fifth moon orbiting the dwarf planet.
11 July 2012, 12:04 PM ET
Pluto, originally considered the ninth planet, was classified as a dwarf planet. The icy body and its five moons orbit the sun far out in the Kuiper Belt.
11 July 2012, 11:34 AM ET
See how much you know about the dwarf planet Pluto and its natural satellites.
11 July 2012, 11:05 AM ET
See photos from NASA's New Horizons mission to explore the dwarf planet Pluto.
11 July 2012, 10:56 AM ET
Should Pluto be classified as a dwarf planet or a full-fledged world?
11 July 2012, 10:25 AM ET
The Hubble Space Telescope has found another moon orbiting Pluto, bringing its total to five moons.
11 July 2012, 10:20 AM ET
Learn all about Pluto's weirdly eccentric orbit, four moons and more in this SPACE.com infographic.
06 April 2012, 10:46 AM ET
A looming shortage of the radioactive isotope worries many planetary scientists.
22 February 2012, 12:33 PM ET
NASA's New Horizons Pluto mission team is hoping for 100,000 signatures by March 13.
01 February 2012, 04:36 PM ET
The petition hopes to collect 100,000 signatures by March 13.
19 January 2012, 01:35 PM ET
New Horizons is zooming toward a close encounter with Pluto in 2015.
21 December 2011, 07:00 AM ET
NASA's Hubble Space Telescope made the find.
20 December 2011, 08:00 AM ET
Here are some of the most significant astronomical findings of the year.
20 December 2011, 07:00 AM ET
The past year saw incredible gains in science and astronomy. Here are some of the best finds of 2011.
03 December 2011, 03:02 AM ET
From the launch of the Curiosity rover to a tour of Spaceport America and more, it was a busy week in space.
26 October 2011, 06:06 PM ET
This cool space wallpaper of an artist's impression shows the distant dwarf planet Eris.
26 October 2011, 02:15 PM ET
See images of Eris, the icy dwarf planet on the edge of the solar system.
26 October 2011, 02:00 PM ET
A brief tour of the five currently recognized dwarf planets, from Ceres to Eris.
26 October 2011, 01:16 PM ET
The icy dwarf planet Eris is nearly exactly the same size as Pluto.
26 September 2011, 04:32 PM ET
The photos show the ice giants blazing red-orange in infrared light.
02 September 2011, 06:16 PM ET
Find out about the dwarf planet and what researchers think may be on its surface.The New Horizon spacecraft is en route to Pluto and carries one of the highest resolution interplanetary telescopes ever flown, the imagery promises to be tantalizing.
28 August 2011, 09:00 AM ET
Was it Hurricane Irene from space, a black hole swallowing a star or something else?
24 August 2011, 12:00 AM ET
The debate over Pluto's status shows that our understanding of the solar system is always evolving.
24 August 2011, 12:00 AM ET
SPACE.com chats with Caltech planetary scientist Mike Brown, the man who "killed" Pluto.
24 August 2011, 12:00 AM ET
Stern still thinks the decision to demote Pluto was a bad one.