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30 Years Ago: Voyager 2’s Historic Neptune Flyby

August 23, 2019

Thirty years ago, on Aug. 25, 1989, NASA’s Voyager 2 spacecraft made a close flyby of Neptune, giving…
Neptune’s Moon Triton Fosters Rare Icy Union

May 28, 2019

Astronomers using the Gemini Observatory explore Neptune’s largest moon Triton and observe, for the first time beyond the…
Next-Generation NASA Instrument Advanced to Study the Atmospheres of Uranus and Neptune

April 26, 2019

Much has changed technologically since NASA’s Galileo mission dropped a probe into Jupiter’s atmosphere to investigate, among other…
Hubble Tracks the Lifecycle of Giant Storms on Neptune

March 26, 2019

In 1989, NASA’s Voyager 2 zipped past Neptune—its final planetary target before speeding to the outer limits of…
Is Neptune’s newest moon a chip off the old block?

February 22, 2019

The solar system can be a violent place. Astronomers now think that Neptune’s tiniest moon, Hippocamp, was chipped…
Tiny Neptune Moon Spotted by Hubble May Have Broken from Larger Moon

February 21, 2019

Ancient comet collision added one more moon to the Neptunian system. The phrase “a chip off the old…
Uranus and Neptune are more interesting than we thought, new images show

February 11, 2019

NASA’s Hubble Space Telescope has snapped the latest weather pictures of our solar system’s frigid outer planets, and…
Hubble Reveals Dynamic Atmospheres of Uranus, Neptune

February 11, 2019

During its routine yearly monitoring of the weather on our solar system’s outer planets, NASA’s Hubble Space Telescope…
Hubble Reveals Dynamic Atmospheres of Uranus and Neptune

February 7, 2019

Giant polar cap dominates Uranus; dark tempest is raging on Neptune. The two major planets beyond Saturn have…
Citizen Scientists Find New World with NASA Telescope

January 8, 2019

Using data from NASA’s Kepler space telescope, citizen scientists have discovered a planet roughly twice the size of…
This is a Photo of Neptune, From the Ground! ESO’s New Adaptive Optics Makes Ground Telescopes Ignore the Earth’s Atmosphere

July 24, 2018

In 2007, the European Southern Observatory (ESO) completed work on the Very Large Telescope (VLT) at the Paranal…
Neptune’s Huge Storm Is Shrinking Away In New Images From Hubble

February 20, 2018

Back in the late 1980’s, Voyager 2 was the first spacecraft to capture images of the giant storms…
Hubble Sees Neptune’s Mysterious Shrinking Storm

February 16, 2018

Three billion miles away on the farthest known major planet in our solar system, an ominous, dark storm…
Catching the Shadow of a Neptunian Moon

October 2, 2017

Researchers on the flying observatory SOFIA, the Stratospheric Observatory for Infrared Astronomy, are preparing for a two-minute opportunity…
Oil and water do not mix? Scientists managed to convince them

August 29, 2017

Every child knows that oil and water do not mix. Oil molecules repel water. In fact, some of…
Scientists create ‘diamond rain’ that forms in the interior of icy giant planets like Neptune

August 23, 2017

In an experiment designed to mimic the conditions deep inside the icy giant planets of our solar system,…
Twilight observations reveal huge storm on Neptune

August 4, 2017

Spectacular sunsets and sunrises are enough to dazzle most of us, but to astronomers, dusk and dawn are…
NASA Completes Study of Future ‘Ice Giant’ Mission Concepts

June 21, 2017

A NASA-led and NASA-sponsored study of potential future missions to the mysterious “ice giant” planets Uranus and Neptune…
‘Warm Neptune’ Has Unexpectedly Primitive Atmosphere

May 12, 2017

A study combining observations from NASA’s Hubble and Spitzer space telescopes reveals that the distant planet HAT-P-26b has…
Planetoid Pairs Reveal “A Kinder, Gentler Neptune”

April 5, 2017

“It’s a kinder, gentler Neptune,” says Gemini astronomer Meg Schwamb in describing a new result that leaves little…
Microlensing Study Suggests Most Common Outer Planets Likely Neptune-mass

December 17, 2016

A new statistical study of planets found by a technique called gravitational microlensing suggests that Neptune-mass worlds are…
‘Dark vortex’ confirmed on Neptune

June 26, 2016

New images obtained by the Hubble Space Telescope confirm the presence of a “dark vortex” in the atmosphere…
Hubble Imagery Confirms New Dark Spot on Neptune

June 24, 2016

New images obtained on May 16, 2016, by NASA’s Hubble Space Telescope confirm the presence of a dark…
Saturn Spacecraft Not Affected by Hypothetical Planet 9

April 10, 2016

Contrary to recent reports, NASA’s Cassini spacecraft is not experiencing unexplained deviations in its orbit around Saturn, according…
NASA’s K2 mission: The Kepler Space Telescope’s Second Chance to Shine

March 11, 2016

The engineers huddled around a telemetry screen, and the mood was tense. They were watching streams of data…
Scientists predict cool new phase of superionic ice

October 30, 2015

Scientists have predicted a new phase of superionic ice, a special form of ice that could exist on…
The Moons of Neptune

September 9, 2015

Neptune, that icy gas giant that is the eight planet from our Sun, was discovered in 1846 by…
Hubble Sees a “Behemoth” Bleeding Atmosphere Around a Warm Exoplanet

June 26, 2015

Astronomers using NASA’s Hubble Space Telescope have discovered an immense cloud of hydrogen dubbed “The Behemoth” bleeding from…
Is salt the key to unlocking the interiors of Neptune and Uranus?

June 24, 2015

The interiors of several of our Solar System’s planets and moons are icy, and ice has been found…
Kepler Observes Neptune Dance with Its Moons

May 15, 2015

NASA’s Kepler spacecraft, known for its planet-hunting prowess of other stars, is also studying solar system objects. In…
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