https://www.sciencedaily.com/news/space_time/neptune/ Planet Neptune News. Read astronomy articles on Neptune's oddball moon Triton. See images of Neptune and more. en-us Mon, 20 Apr 2026 02:54:40 EDT Mon, 20 Apr 2026 02:54:40 EDT 60 https://www.sciencedaily.com/images/scidaily-logo-rss.png https://www.sciencedaily.com/news/space_time/neptune/ For more science news, visit ScienceDaily. https://www.sciencedaily.com/releases/2026/03/260322020255.htm Astronomers have uncovered surprising evidence of a thick atmosphere surrounding TOI-561 b, a scorching, fast-orbiting rocky planet once thought too extreme to hold onto any gas. Using NASA’s James Webb Space Telescope, researchers found the planet is far cooler than expected for a bare rock, hinting at a heat-distributing atmosphere above a churning magma ocean. This strange world—where a year lasts just over 10 hours and one side is locked in eternal daylight—may even be rich in volatile materials, behaving like a “wet lava ball.” Sun, 22 Mar 2026 04:19:46 EDT https://www.sciencedaily.com/releases/2026/03/260322020255.htm https://www.sciencedaily.com/releases/2025/12/251210092013.htm Uranus and Neptune may not be the icy worlds we’ve long imagined. A new Swiss-led study uses innovative hybrid modeling to reveal that these planets could just as easily be dominated by rock as by water-rich ices. The findings also help explain their bizarre, multi-poled magnetic fields and open the door to a wider range of possible interior structures. But major uncertainties remain, and only future space missions will be able to uncover what truly lies beneath their blue atmospheres. Wed, 10 Dec 2025 10:50:07 EST https://www.sciencedaily.com/releases/2025/12/251210092013.htm https://www.sciencedaily.com/releases/2025/07/250720091630.htm Astronomers have discovered a bizarre object in the outer solar system, 2020 VN40, that dances to Neptune’s gravitational beat in a never-before-seen rhythm. It’s the first of its kind, orbiting the Sun once for every ten orbits of Neptune, and could reshape how we understand the movement and evolution of distant cosmic bodies. Sun, 20 Jul 2025 09:55:28 EDT https://www.sciencedaily.com/releases/2025/07/250720091630.htm https://www.sciencedaily.com/releases/2025/07/250708045706.htm Astronomers have spotted centimeter-sized “pebbles” swirling around two infant stars 450 light-years away, revealing the raw ingredients of planets already stretching to Neptune-like orbits. Using the UK’s e-MERLIN radio array, the PEBBLeS project found these rocky seeds in unprecedented detail, bridging the elusive gap between dusty discs and fully-formed worlds. The discovery hints that systems even larger than our own could be commonplace and sets the stage for the upcoming Square Kilometre Array to map hundreds more planetary nurseries. Wed, 09 Jul 2025 08:41:24 EDT https://www.sciencedaily.com/releases/2025/07/250708045706.htm https://www.sciencedaily.com/releases/2025/06/250603213454.htm Astronomers have revealed new research showing that millions of new solar system objects are likely to be detected by a brand-new facility, which is expected to come online later this year. Tue, 03 Jun 2025 21:34:54 EDT https://www.sciencedaily.com/releases/2025/06/250603213454.htm https://www.sciencedaily.com/releases/2025/04/250416151917.htm Astronomers have found a planet that orbits at an angle of 90 degrees around a rare pair of peculiar stars. This is the first time we have strong evidence for one of these 'polar planets' orbiting a stellar pair. Wed, 16 Apr 2025 15:19:17 EDT https://www.sciencedaily.com/releases/2025/04/250416151917.htm https://www.sciencedaily.com/releases/2025/04/250415183433.htm Observations of Jupiter show that ammonia is unevenly distributed in the upper atmosphere, against expectations of uniform mixing. Scientists found evidence for a complicated but apparently real process associated with fierce lightning storms: strong updrafts generate slushy, ice-coated hailstones of ammonia and water that eventually plunge into the planet and deplete areas of ammonia. This is part of the first 3D picture of the planet's atmosphere, which shows storms are primarily shallow. Tue, 15 Apr 2025 18:34:33 EDT https://www.sciencedaily.com/releases/2025/04/250415183433.htm https://www.sciencedaily.com/releases/2025/03/250305164627.htm Studying the orbits of thousands of exoplanets shows that large planets tend to have elliptical orbits, while smaller planets tend to have more circular orbits. This split coincides with several other classic features in the exoplanet population, such as the high abundance of small planets over large planets and a tendency for giant planets to only form around stars enriched in heavy elements such as oxygen, carbon and iron. The finding points toward two distinct pathways for forming small and large planets. Wed, 05 Mar 2025 16:46:27 EST https://www.sciencedaily.com/releases/2025/03/250305164627.htm https://www.sciencedaily.com/releases/2024/12/241219152425.htm New studies offer a clearer picture of how the outer solar system formed and evolved based on analyses of trans-Neptunian objects (TNOs) and centaurs. The findings reveal the distribution of ices in the early solar system and how TNOs evolve when they travel inward into the region of the giant planets between Jupiter and Saturn, becoming centaurs. TNOs are small bodies, or 'planetesimals,' orbiting the sun beyond Pluto. They never accreted into planets, and serve as pristine time capsules, preserving crucial evidence of the molecular processes and planetary migrations that shaped the solar system billions of years ago. These solar system objects are like icy asteroids and have orbits comparable to or larger than Neptune's orbit. Prior to the new UCF-led study, TNOs were known to be a diverse population based on their orbital properties and surface colors, but the molecular composition of these objects remained poorly understood. For decades, this lack of detailed knowledge hindered interpretation of their color and dynamical diversity. Now, the new results unlock the long-standing question of the interpretation of color diversity by providing compositional information. Thu, 19 Dec 2024 15:24:25 EST https://www.sciencedaily.com/releases/2024/12/241219152425.htm https://www.sciencedaily.com/releases/2024/12/241213125457.htm New radio astronomy observations of a planetary system in the process of forming show that once the first planets form close to the central star, these planets can help shepherd the material to form new planets farther out. In this way each planet helps to form the next, like a line of falling dominos each triggering the next in turn. Fri, 13 Dec 2024 12:54:57 EST https://www.sciencedaily.com/releases/2024/12/241213125457.htm https://www.sciencedaily.com/releases/2024/12/241209163211.htm A NASA Hubble Space Telescope observation program called OPAL (Outer Planet Atmospheres Legacy) obtains long-term baseline observations of Jupiter, Saturn, Uranus, and Neptune in order to understand their atmospheric dynamics and evolution. Mon, 09 Dec 2024 16:32:11 EST https://www.sciencedaily.com/releases/2024/12/241209163211.htm https://www.sciencedaily.com/releases/2024/11/241125162951.htm When Voyager 2 flew by Uranus and Neptune 40 years ago, astronomers were surprised that it detected no global dipole magnetic fields, like Earth's. The explanation: the ice giants are layered and unmixed, which prevents large scale convection to create a dipole field. But what substances would remain immiscible? A scientist modeled the interiors and found that water-rich and hydrocarbon-rich layers naturally form at extreme pressure and temperature, and they do not mix. Mon, 25 Nov 2024 16:29:51 EST https://www.sciencedaily.com/releases/2024/11/241125162951.htm https://www.sciencedaily.com/releases/2024/08/240822130027.htm Researchers studying meteor showers have found that not all comets crumble the same way when they approach the Sun. In a new study, they ascribe the differences to the conditions in the protoplanetary disk where comets formed 4.5 billion years ago. Thu, 22 Aug 2024 13:00:27 EDT https://www.sciencedaily.com/releases/2024/08/240822130027.htm https://www.sciencedaily.com/releases/2024/07/240717120953.htm The newly discovered planet TIC 241249530 b has the most highly elliptical, or eccentric, orbit of any known planet. It appears to be a juvenile planet that is in the midst of becoming a hot Jupiter, and its orbit is providing some answers to how such large, scorching planets evolve. Wed, 17 Jul 2024 12:09:53 EDT https://www.sciencedaily.com/releases/2024/07/240717120953.htm https://www.sciencedaily.com/releases/2024/07/240709184235.htm A international team of astronomers has made an exciting discovery about the temperate exoplanet LHS 1140 b: it could be a promising 'super-Earth' covered in ice or water. Tue, 09 Jul 2024 18:42:35 EDT https://www.sciencedaily.com/releases/2024/07/240709184235.htm https://www.sciencedaily.com/releases/2024/02/240202115144.htm Astronomers have shown new atmospheric detail in a set of 15 exoplanets similar to Neptune. While none could support humanity, a better understanding of their behavior might help us to understand why we don't have a small Neptune, while most solar systems seem to feature a planet of this class. Fri, 02 Feb 2024 11:51:44 EST https://www.sciencedaily.com/releases/2024/02/240202115144.htm https://www.sciencedaily.com/releases/2024/01/240111113157.htm Astronomers have made the rare discovery of a small, cold exoplanet and its massive outer companion -- shedding light on the formation of planets like Earth. Thu, 11 Jan 2024 11:31:57 EST https://www.sciencedaily.com/releases/2024/01/240111113157.htm https://www.sciencedaily.com/releases/2024/01/240104210145.htm Neptune is fondly known for being a rich blue and Uranus green -- but a new study has revealed that the two ice giants are actually far closer in color than typically thought. The correct shades of the planets have now been confirmed. Thu, 04 Jan 2024 21:01:45 EST https://www.sciencedaily.com/releases/2024/01/240104210145.htm https://www.sciencedaily.com/releases/2023/11/231115113353.htm Astronomers have used recent observations made with the James Webb Space Telescope to study the atmosphere of the nearby exoplanet WASP-107b. Peering deep into the fluffy atmosphere of WASP-107b they discovered not only water vapor and sulfur dioxide, but even silicate sand clouds. These particles reside within a dynamic atmosphere that exhibits vigorous transport of material. Wed, 15 Nov 2023 11:33:53 EST https://www.sciencedaily.com/releases/2023/11/231115113353.htm https://www.sciencedaily.com/releases/2023/09/230911141059.htm A new investigation with NASA's James Webb Space Telescope into K2-18 b, an exoplanet 8.6 times as massive as Earth, has revealed the presence of carbon-bearing molecules including methane and carbon dioxide. Webb's discovery adds to recent studies suggesting that K2-18 b could be a Hycean exoplanet, one which has the potential to possess a hydrogen-rich atmosphere and a water ocean-covered surface. Mon, 11 Sep 2023 14:10:59 EDT https://www.sciencedaily.com/releases/2023/09/230911141059.htm https://www.sciencedaily.com/releases/2023/08/230829160720.htm Astronomers have uncovered a link between Neptune's shifting cloud abundance and the 11-year solar cycle, in which the waxing and waning of the Sun's entangled magnetic fields drives solar activity. Tue, 29 Aug 2023 16:07:20 EDT https://www.sciencedaily.com/releases/2023/08/230829160720.htm https://www.sciencedaily.com/releases/2023/08/230824111928.htm Using ESO's Very Large Telescope (VLT), astronomers have observed a large dark spot in Neptune's atmosphere, with an unexpected smaller bright spot adjacent to it. This is the first time a dark spot on the planet has ever been observed with a telescope on Earth. These occasional features in the blue background of Neptune's atmosphere are a mystery to astronomers, and the new results provide further clues as to their nature and origin. Thu, 24 Aug 2023 11:19:28 EDT https://www.sciencedaily.com/releases/2023/08/230824111928.htm https://www.sciencedaily.com/releases/2023/01/230118111758.htm A team reveals the eventful migration history of planets bordering the Hot Neptune Desert, these extrasolar planets that orbit very close to their star. Wed, 18 Jan 2023 11:17:58 EST https://www.sciencedaily.com/releases/2023/01/230118111758.htm https://www.sciencedaily.com/releases/2022/10/221031124620.htm Twilight observations have enabled astronomers to spot three near-Earth asteroids (NEA) hiding in the glare of the Sun. These NEAs are part of an elusive population that lurks inside the orbits of Earth and Venus. One of the asteroids is the largest object that is potentially hazardous to Earth to be discovered in the last eight years. Mon, 31 Oct 2022 12:46:20 EDT https://www.sciencedaily.com/releases/2022/10/221031124620.htm https://www.sciencedaily.com/releases/2022/10/221005111908.htm Astronomers have discovered a stellar binary, or pair of stars, with an extremely short orbit, appearing to circle each other every 51 minutes. The system seems to be one of a rare class of binaries known as a 'cataclysmic variable,' in which a star similar to our sun orbits tightly around a white dwarf -- a hot, dense core of a burned-out star. Wed, 05 Oct 2022 11:19:08 EDT https://www.sciencedaily.com/releases/2022/10/221005111908.htm https://www.sciencedaily.com/releases/2022/09/220921210123.htm NASA's James Webb Space Telescope shows off its capabilities closer to home with its first image of Neptune. Not only has Webb captured the clearest view of this distant planet's rings in more than 30 years, but its cameras reveal the ice giant in a whole new light. Wed, 21 Sep 2022 21:01:23 EDT https://www.sciencedaily.com/releases/2022/09/220921210123.htm https://www.sciencedaily.com/releases/2022/09/220915142436.htm Scientists propose a lost moon of Saturn, which they call Chrysalis, pulled on the planet until it ripped apart, forming rings and contributing to Saturn's tilt. Thu, 15 Sep 2022 14:24:36 EDT https://www.sciencedaily.com/releases/2022/09/220915142436.htm https://www.sciencedaily.com/releases/2022/06/220621105644.htm A new study describes how unique populations of craters on two of Saturn's moons could help indicate the satellites' age and the conditions of their formation. Using data from NASA's Cassini mission, researchers have surveyed elliptical craters on Saturn's moons Tethys and Dione for this study. Tue, 21 Jun 2022 10:56:44 EDT https://www.sciencedaily.com/releases/2022/06/220621105644.htm https://www.sciencedaily.com/releases/2022/06/220617165652.htm The European Gaia space mission has produced an unprecedented amount of new, improved, and detailed data for almost two billion objects in the Milky Way galaxy and the surrounding cosmos. The Gaia Data Release 3 on Monday revolutionizes our knowledge of the Solar System and the Milky Way and its satellite galaxies. Fri, 17 Jun 2022 16:56:52 EDT https://www.sciencedaily.com/releases/2022/06/220617165652.htm https://www.sciencedaily.com/releases/2022/05/220531140128.htm Astronomers may now understand why the similar planets Uranus and Neptune are different colors. Researchers have now developed a single atmospheric model that matches observations of both planets. The model reveals that excess haze on Uranus builds up in the planet's stagnant, sluggish atmosphere and makes it appear a lighter tone than Neptune. Tue, 31 May 2022 14:01:28 EDT https://www.sciencedaily.com/releases/2022/05/220531140128.htm https://www.sciencedaily.com/releases/2022/04/220427154058.htm Researchers have unveiled a new theory that could help solve a galactic mystery of how our solar system evolved. Specifically, how did the gas giants -- Jupiter, Saturn, Uranus and Neptune -- end up where they are, orbiting the sun like they do? The research also has implications for how terrestrial planets such as Earth were formed and the possibility that a fifth gas giant lurks 50 billion miles out into the distance. Wed, 27 Apr 2022 15:40:58 EDT https://www.sciencedaily.com/releases/2022/04/220427154058.htm https://www.sciencedaily.com/releases/2022/04/220411101321.htm New research has revealed how temperatures in Neptune's atmosphere have unexpectedly fluctuated over the past two decades. Mon, 11 Apr 2022 10:13:21 EDT https://www.sciencedaily.com/releases/2022/04/220411101321.htm https://www.sciencedaily.com/releases/2022/02/220203161238.htm Astronomers have identified two different cases of 'mini-Neptune' planets that are losing their puffy atmospheres and likely transforming into super-Earths. Thu, 03 Feb 2022 16:12:38 EST https://www.sciencedaily.com/releases/2022/02/220203161238.htm https://www.sciencedaily.com/releases/2021/11/211103115438.htm A new study dives into the explosive physics of what happens when two supermassive black holes collide. Wed, 03 Nov 2021 11:54:38 EDT https://www.sciencedaily.com/releases/2021/11/211103115438.htm https://www.sciencedaily.com/releases/2021/09/210909123855.htm Astronomers have obtained the sharpest and most detailed images yet of the asteroid Kleopatra. The observations have allowed the team to constrain the 3D shape and mass of this peculiar asteroid, which resembles a dog bone, to a higher accuracy than ever before. Their research provides clues as to how this asteroid and the two moons that orbit it formed. Thu, 09 Sep 2021 12:38:55 EDT https://www.sciencedaily.com/releases/2021/09/210909123855.htm https://www.sciencedaily.com/releases/2021/06/210609084613.htm Scientists have discovered a new, temperate sub-Neptune sized exoplanet with a 24-day orbital period orbiting a nearby M dwarf star. The recent discovery offers exciting research opportunities thanks to the planet's substantial atmosphere, small star, and how fast the system is moving away from the Earth. Wed, 09 Jun 2021 08:46:13 EDT https://www.sciencedaily.com/releases/2021/06/210609084613.htm https://www.sciencedaily.com/releases/2021/05/210520133657.htm Researchers report that they can detect showers from the debris in the path of comets that pass close to Earth orbit and return as infrequently as once every 4,000 years. Thu, 20 May 2021 13:36:57 EDT https://www.sciencedaily.com/releases/2021/05/210520133657.htm https://www.sciencedaily.com/releases/2021/03/210311142020.htm Scientists have found evidence that a planet orbiting a distant star may have lost its atmosphere but gained a second one through volcanic activity. Thu, 11 Mar 2021 14:20:20 EST https://www.sciencedaily.com/releases/2021/03/210311142020.htm https://www.sciencedaily.com/releases/2021/01/210125113156.htm Using a combination of telescopes, including the Very Large Telescope of the European Southern Observatory (ESO's VLT), astronomers have revealed a system consisting of six exoplanets, five of which are locked in a rare rhythm around their central star. The researchers believe the system could provide important clues about how planets, including those in the Solar System, form and evolve. Mon, 25 Jan 2021 11:31:56 EST https://www.sciencedaily.com/releases/2021/01/210125113156.htm https://www.sciencedaily.com/releases/2020/10/201026114244.htm An international team of scientists recently measured the spectrum of the atmosphere of a rare hot Neptune exoplanet, whose discovery by NASA's Transiting Exoplanet Survey Satellite (TESS) was announced just last month. Mon, 26 Oct 2020 11:42:44 EDT https://www.sciencedaily.com/releases/2020/10/201026114244.htm https://www.sciencedaily.com/releases/2020/10/201023123106.htm Astronomers have crunched data from NASA's TESS and Spitzer space telescopes to portray for the first time the atmosphere of a highly unusual kind of exoplanet dubbed a 'hot Neptune.' Fri, 23 Oct 2020 12:31:06 EDT https://www.sciencedaily.com/releases/2020/10/201023123106.htm https://www.sciencedaily.com/releases/2020/09/200925113434.htm By developing better computer simulations, researchers have determined that the scattering of stars from their orbits by the gravity of massive clumps within galaxies leads to a common look in galaxy disks -- bright centers fading away to dark edges. Fri, 25 Sep 2020 11:34:34 EDT https://www.sciencedaily.com/releases/2020/09/200925113434.htm https://www.sciencedaily.com/releases/2020/05/200514115751.htm Astronomers have determined that the Earth-like planets of the TRAPPIST-1 system are not significantly misaligned with the rotation of the star. This is an important result for understanding the evolution of planetary systems around very low-mass stars in general, and in particular the history of the TRAPPIST-1 planets including the ones near the habitable zone. Thu, 14 May 2020 11:57:51 EDT https://www.sciencedaily.com/releases/2020/05/200514115751.htm https://www.sciencedaily.com/releases/2020/04/200416105650.htm A reanalysis of data from NASA's Kepler space telescope has revealed an Earth-size exoplanet orbiting in its star's habitable zone, the area around a star where a rocky planet could support liquid water. Thu, 16 Apr 2020 10:56:50 EDT https://www.sciencedaily.com/releases/2020/04/200416105650.htm https://www.sciencedaily.com/releases/2020/03/200302103749.htm Findings suggest that the planet DS Tuc Ab -- which orbits a star in a binary system -- formed without being heavily impacted by the gravitational pull of the second star. Mon, 02 Mar 2020 10:37:49 EST https://www.sciencedaily.com/releases/2020/03/200302103749.htm https://www.sciencedaily.com/releases/2020/02/200228142006.htm NASA's James Webb Space Telescope will unlock secrets of the atmospheres of Uranus and Neptune. Fri, 28 Feb 2020 14:20:06 EST https://www.sciencedaily.com/releases/2020/02/200228142006.htm https://www.sciencedaily.com/releases/2020/02/200210165729.htm Astronomers have probed the formation process of giant exoplanets and brown dwarfs by using a combination of direct imaging of these objects and custom software to model their orbits. Mon, 10 Feb 2020 16:57:29 EST https://www.sciencedaily.com/releases/2020/02/200210165729.htm https://www.sciencedaily.com/releases/2020/02/200204112548.htm A 'beating heart' of frozen nitrogen controls Pluto's winds and may give rise to features on its surface, according to a new study. Tue, 04 Feb 2020 11:25:48 EST https://www.sciencedaily.com/releases/2020/02/200204112548.htm https://www.sciencedaily.com/releases/2020/01/200115132316.htm Astronomers have discovered a new class of bizarre objects at the center of our galaxy, not far from the supermassive black hole called Sagittarius A*. Wed, 15 Jan 2020 13:23:16 EST https://www.sciencedaily.com/releases/2020/01/200115132316.htm https://www.sciencedaily.com/releases/2019/11/191114140020.htm Even by the wild standards of the outer solar system, the strange orbits that carry Neptune's two innermost moons are unprecedented, according to newly published research. Thu, 14 Nov 2019 14:00:20 EST https://www.sciencedaily.com/releases/2019/11/191114140020.htm https://www.sciencedaily.com/releases/2019/10/191030132730.htm As planetary systems evolve, gravitational interactions between planets can fling some of them into eccentric elliptical orbits around the host star. Smaller planets should be more susceptible to this gravitational scattering, yet many gas giant exoplanets have been observed with eccentric orbits. In fact, the planets with the highest masses tend to be those with the most eccentric orbits. A new study explains these counter-intuitive observations. Wed, 30 Oct 2019 13:27:30 EDT https://www.sciencedaily.com/releases/2019/10/191030132730.htm https://www.sciencedaily.com/releases/2019/07/190729111328.htm NASA's Transiting Exoplanet Survey Satellite, or TESS, has discovered three new worlds that are among the smallest, nearest exoplanets known to date. The planets orbit a star just 73 light years away and include a small, rocky super-Earth and two sub-Neptunes -- planets about half the size of our own icy giant. Mon, 29 Jul 2019 11:13:28 EDT https://www.sciencedaily.com/releases/2019/07/190729111328.htm https://www.sciencedaily.com/releases/2019/07/190702164603.htm Two NASA space telescopes have identified the detailed chemical 'fingerprint' of a planet between the sizes of Earth and Neptune. No planets like this can be found in our own solar system, but they are common around other stars. Tue, 02 Jul 2019 16:46:03 EDT https://www.sciencedaily.com/releases/2019/07/190702164603.htm https://www.sciencedaily.com/releases/2019/06/190627114113.htm NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered a world between the sizes of Mars and Earth orbiting a bright, cool, nearby star. The planet, called L 98-59b, marks the tiniest discovered by TESS to date. Thu, 27 Jun 2019 11:41:13 EDT https://www.sciencedaily.com/releases/2019/06/190627114113.htm https://www.sciencedaily.com/releases/2019/05/190528193034.htm An exoplanet smaller than Neptune with its own atmosphere has been discovered in a region close to its star where no Neptune-sized planets would normally be found. Tue, 28 May 2019 19:30:34 EDT https://www.sciencedaily.com/releases/2019/05/190528193034.htm https://www.sciencedaily.com/releases/2019/05/190522141752.htm Astronomers using the Gemini Observatory explore Neptune's largest moon Triton and observe, for the first time beyond the lab, an extraordinary union between carbon monoxide and nitrogen ices. The discovery offers insights into how this volatile mixture can transport material across the moon's surface via geysers, trigger seasonal atmospheric changes, and provide a context for conditions on other distant, icy worlds. Wed, 22 May 2019 14:17:52 EDT https://www.sciencedaily.com/releases/2019/05/190522141752.htm https://www.sciencedaily.com/releases/2019/03/190325120355.htm Images taken by the Hubble Space Telescope document the formation of a Great Dark Spot on Neptune for the first time, report researchers in a new study. Mon, 25 Mar 2019 12:03:55 EDT https://www.sciencedaily.com/releases/2019/03/190325120355.htm https://www.sciencedaily.com/releases/2019/03/190312123629.htm Two recent studies report discoveries of dust rings in the inner solar system: a dust ring at Mercury's orbit, and a group of never-before-detected asteroids co-orbiting with Venus, supplying the dust in Venus' orbit. Tue, 12 Mar 2019 12:36:29 EDT https://www.sciencedaily.com/releases/2019/03/190312123629.htm https://www.sciencedaily.com/releases/2019/02/190221095033.htm After several years of analysis, a team of planetary scientists using NASA's Hubble Space Telescope has at last come up with an explanation for a mysterious moon around Neptune that they discovered with Hubble in 2013. Thu, 21 Feb 2019 09:50:33 EST https://www.sciencedaily.com/releases/2019/02/190221095033.htm https://www.sciencedaily.com/releases/2019/02/190207114955.htm NASA's Hubble Space Telescope has uncovered another mysterious dark storm on Neptune and provided a fresh look at a long-lived storm circling around the north polar region on Uranus. Thu, 07 Feb 2019 11:49:55 EST https://www.sciencedaily.com/releases/2019/02/190207114955.htm