Data from NASA's Dawn spacecraft suggest that dwarf planet Ceres has a cycle of condensation and sublimation. Scientists said that this process was previously seen only on comets.
Space March 15, 2018
A six-year-old girl from Ireland wrote to NASA, asking the space agency to 'make Pluto a planet again.' The little astronaut wannabe is now the most adorable member of the contingent pushing to give Pluto back its planetary status.
Space February 19, 2018
Astronomers have discovered the first-ever dwarf planet in the Solar System to be surrounded by a ring. But the question is, how did it even form one of its own?
Space October 12, 2017
Astronomers first spotted the distant celestial object UZ224 in 2014. After years of observation, they reveal that 'DeeDee' meets all the new requirements to be considered a dwarf planet.
Space April 16, 2017
A group of scientists is proposing a new definition that would classify celestial objects as planets. If the new criteria get adopted, the Solar System could be home of more than 100 planets, which would include the Earth's moon.
Space March 19, 2017
A team of scientists at NASA published a new proposal that aims to change the way planetary scientists define and classify planets. If approved, it means Pluto may be deemed a planet again.
Space February 21, 2017
NASA's Dawn spacecraft detected carbon-containing materials on Ceres similar to what may have been the building blocks for life on Earth. The organic molecules also appear to be native to this dwarf planet.
Space February 17, 2017
Particles from asteroid impacts that occurred millions of years ago cloak the surface of Ceres. The particles may hide the dwarf planet's true makeup.
Space January 26, 2017
A new study proposes that Planet Nine could previously be a 'rogue planet,' a free-moving body not bound to any host star, which eventually got snatched into the solar system through the sun’s gravitational pull.
Space January 13, 2017
Those icy ridges found on the Tartarus Dorsa region of Pluto are similar to the so-called penitentes on Earth, making it possible for the same features to exist elsewhere in the solar system, a new study has found.
Space January 6, 2017
Water on dwarf planet Ceres is frozen as ice, but the biggest asteroid in the solar system was once an ocean world. Early in its history, Ceres had water that churned and flowed, helping separate it into layers of rocks and ice.
Space December 16, 2016
Pluto is the smallest planet in our solar system, and the coldest as well. With that being the truth, researchers are attempting to find out if life could be sustained on the planet, especially in its oceans under the ice.
Space December 5, 2016
Observations made through NASA's Chandra X-ray Observatory revealed Pluto emits X-rays. Why are astronomers puzzled by the radiation from the dwarf planet?
Space September 18, 2016
The red spot at the north pole of Charon, the largest moon of Pluto, may have been produced by methane from the dwarf planet's atmosphere. How did this reddish region form?
Space September 15, 2016
During its 4.5 billion-year history, Ceres is not immune to violent asteroid collisions. A new study suggests a strange anomaly on the dwarf planet: researchers say Ceres is missing a few large impact craters.
Space July 26, 2016
Permanently shadowed regions on dwarf planet Ceres may be frigid enough to hold debris of water ice, a new study suggests. NASA's Dawn mission has helped locate these "cold traps."
Space July 8, 2016
A present-day liquid ocean could be hiding beneath the icy crust of Pluto. The dwarf planet would have shrunk if its ocean has completely frozen millions of years ago.
Space June 22, 2016
A new study found that the dwarf planet 2007 OR10, nicknamed 'Snow White,' is much bigger and darker than previously believed. This makes Snow White the third biggest dwarf planet in our solar system.
Space May 13, 2016
The second brightest icy dwarf planet in the Kuiper belt is not alone. NASA's Hubble Space telescope has detected a small, dark moon around Makemake, revealing insight about dwarf planet systems.
Space April 27, 2016
NASA scientists unveiled images showing a detailed look of the mysterious black spots on the surface of Ceres. The images gave scientists better understanding of the evolution of the dwarf planet.
Space March 23, 2016
Pluto has a geographically diverse surface. Researchers said this is influenced by the dwarf planet's water ice and volatile ices.
Space March 20, 2016
NASA released a new color animation of dwarf planet Ceres. The high-resolution images from the Dawn mission were enhanced to give people a vivid experience as they fly over the crater-filled planet.
Space January 30, 2016
The newest images from the Dawn spacecraft orbiting the tiny world are revealing new insights into intriguing 'bright spots.' Photos were snapped at the closest distance yet, researchers say.
Space January 14, 2016
NASA released new high-resolution images of Pluto that show what appears to be icebergs that float on the surface.
Space January 8, 2016
Observations made by Dawn's Framing Camera suggest that the mysterious Ceres bright spots are primarily composed of hydrated magnesium sulfates. Also known as Epsom salt, this substance is used on Earth for treating a range of ailments.
Space December 10, 2015
Astronomers spy an icy body that looks to be the most distant thing in the solar system. So now researchers will have to wait about a year to determine just how big of a deal this thing is.
Space November 12, 2015
The New Horizons spacecraft sends back images of mountains on Pluto that may be ice volcanoes, NASA says. Circular mountains near the dwarf planet's south pole show crater-like central depressions, scientists say.
Space November 10, 2015
The New Horizons spacecraft approaching Pluto for a July rendezvous has snapped a 360-degree panorama of the dward planet. Scientists say the images show a much more complex surface than expected.
Space June 15, 2015
As it prepares to fly by Pluto, NASA's New Horizons spacecraft has snapped the best photos of Pluto ever taken. The probe will reach its destination on July 14.
Space April 30, 2015
Tiny world orbiting in solar system's asteroid belt captured in dramatic new phographs from space probe Dawn. NASA predicts even better images in coming weeks as spacecraft moves into closer orbits around Ceres.
Geek April 19, 2015
In 1930, astronomer Clyde Tombaugh discovered Pluto from an observatory in Flagstaff, Arizona. Though demoted to a dwarf planet in 2006, Pluto is now the star of a year-long celebration.
Internet Culture April 7, 2015
Astronomers get first good look at two of Pluto's five known moons, courtesy of images from the NASA spacecraft. The dwarf planet's moons Nix and Hydra are both less than 100 miles wide.
Space February 22, 2015
New, sharper images of dwarf planet raise more questions than answers, astronomers say. Scientists eagerly await the arrival of the Dawn spacecraft at Ceres in March.
Space February 18, 2015
Dwarf planet or asteroid? Call it what you will, the giant space rock is slowly revealing its secrets as a NASA spacecraft approaches for a rendezvous in March.
Space February 6, 2015
NASA spacecraft starts a photographic record of its approach to the dwarf planet at the edge of the solar system. New Horizons spacecraft will make its closest approach to Pluto in July.
Space January 25, 2015
New Horizons is approaching Pluto, marking a historic moment in the exploration of space.
Space January 5, 2015
The Dawn spacecraft visited the asteroid Vesta, now it is closing in on the dwarf planet Ceres. What will it find when it gets there?
Space January 2, 2015
Astronomers studying "adolescent" version of our own sun say it may be surrounded with Pluto-like dwarf planets. Observations provide insights into how solar systems form, from birth to maturity, researchers say.
Space December 12, 2014
Ceres, the only dwarf planet in the inner solar system, has been imaged by the Dawn spacecraft as it speeds toward an encounter with the icy body.
Space December 8, 2014
The New Horizons spacecraft has been travelling toward Pluto since 2006. On Dec. 6, it will wake up from hibernation to prepare for its long-awaited encounter with the dwarf planet in January 2015.
Space December 2, 2014
The team behind the New Horizons mission, which was launched to study Pluto in 2006, is eyeing to explore three Kuiper Belt objects located a billion miles beyond the dwarf planet.
Space October 22, 2014
The public speaks: give Pluto back it status as a planet. Debate rages over Pluto's second-class "dwarf planet" classification.
Space October 3, 2014
Is it planet or what? Harvard scientists are reopening Pluto’s old wounds with a new debate that aims to come up with a definition of the word “planet.”
Space October 3, 2014
New Horizons, headed to Pluto, has just passed the orbit of Neptune, setting a new speed record for the journey.
Space August 27, 2014
Two asteroids are photographed by Curiosity rover on Mars. Both of them are giants, bigger than either of Mars' moons Phobos and Deimos.
Space April 29, 2014
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