Neptune

Latest about Neptune

An artist's depiction of a Neptune-like exoplanet.
Weird Neptune-like exoplanet may have water clouds

By Elizabeth Howell Published

A Neptune-like planet that's relatively close to Earth may boast clouds containing water vapor.

Neptune
A volcanic eruption on Jupiter's moon Io.
NASA has just rejected missions to moons of Jupiter and Neptune. Here's what we would have found out.

By Ashley Spindler Published

It's been 30 years since NASA last visited Venus, with the Magellan orbiter in 1990.

Neptune
Astronomers were surprised to see two storms on Neptune. It’s possible the planet’s giant storm spawned another when it abruptly changed directions.
A dark storm on Neptune has reversed direction and scientists can't explain why

By Kasandra Brabaw Published

A dark storm on Neptune abruptly switched directions and started moving away from almost certain death, puzzling astronomers.

Neptune
An artist's impression of the ultrahot Neptune exoplanet LTT 9779b.
'Ultrahot Neptune' discovered around sunlike star

By Charles Q. Choi Published

Astronomers have discovered a new type of alien world — the first known "ultra-hot Neptune," a giant planet that orbits its star 60 times closer than Earth does the sun, a new study finds.

Neptune
An artist's illustration of the K2-138 system, which contains at least five planets orbiting closely around their parent star.
'Mini-Neptunes' may be rocky water worlds

By Elizabeth Howell Published

A strong greenhouse effect allows these "super-Earth" exoplanets to masquerade as "mini-Neptunes."

Neptune
Neptune's moon Triton sprays massive, dark plumes of icy material out of its surface. Voyager 2 captured this photo in 1989 during its flyby of the Neptune system.
Neptune's weird moon Triton could get a visit from a NASA spacecraft called Trident

By Samantha Mathewson Published

A possible new mission called Trident aims to explore Neptune's strange moon Triton.

Neptune
The Dark Energy Camera is mounted on the Victor Blanco telescope, pictured here with other telescopes at the Cerro Tololo Inter-American Observatory in Chile.
'Minor planet' bonanza: 139 new objects discovered beyond Neptune

By Mike Wall Published

The list of Pluto's neighbors just got considerably longer, potentially boosting scientists' odds of finding the putative Planet Nine.

Neptune
An animation shows the paths of Naiad and Thalassa around Neptune.
Space Ballet: 2 Neptune Moons Perform an Unusual Orbital Dance

By Elizabeth Howell Published

Neptune's two innermost moons are locked in an unusual "dance of avoidance," according to researchers.

Neptune
Artist's impression of Neptune
There's Something Strange Going On Inside Neptune

By David Crookes, All About Space magazine Published

Are planetary burps to blame?

Neptune
An artist’s illustration of the exoplanet Kepler-1625b with its hypothesized moon, which is thought to be about the size of Neptune.
Neptune-Size Exomoon Candidate May Be the Captured Core of a Giant Planet

By Mike Wall Published

The first serious exomoon candidate is likely the captured core of a baby giant planet, if the exotic world does indeed exist, a new study suggests.

Neptune
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