Tag Archive for 'Solar System'

Minor planets with activity discoveries resulting from the Active Asteroids project: (a-f) active asteroids and main-belt comet candidates; (g) an active Centaur; (h-l) active active quasi-Hilda asteroids; (m-t) Jupiter-family comets. Image credit: Chandler et al., 10.3847/1538-3881/ad1de2.

Citizen Science Project Discovers 15 New Active Asteroids

Mar 18, 2024 by Enrico de Lazaro

Active asteroids behave dynamically like asteroids but display comet-like comae. These objects are poorly understood, with fewer than 60 identified to...

Jupiter is revisited by the NASA/ESA Hubble Space Telescope in these images, taken on January 5-6, 2024, capturing both sides of the giant planet. Image credit: NASA / ESA / STScI / Amy Simon, NASA’s Goddard Space Flight Center.

Hubble Space Telescope Captures Beautiful New Images of Jupiter

Mar 14, 2024 by News Staff

The many large storms and small white clouds seen in the new Hubble images, taken on January 5 and 6, 2024, are evidence for a lot of activity going on...

Noctis Mons. Image credit: NASA / USGS / Lee et al.

Planetary Scientists Discover Giant Shield Volcano on Mars

Mar 13, 2024 by News Staff

Provisionally designated Noctis Mons, the newly-discovered volcano is located just south of Mars’ equator, in Eastern Noctis Labyrinthus, west of Valles...

This image from Mars Express’ High Resolution Stereo Camera shows the globe of Mars set against a dark background. The disk of the planet features yellow, orange, blue and green patches, all with an overall muted grey hue, representing the varying composition of the surface. Image credit: ESA / DLR / FU Berlin / G. Michael / CC BY-SA 3.0 IGO.

Mars Drives Deep-Ocean Circulation in Earth’s Oceans, Study Suggests

Mar 13, 2024 by News Staff

Geoscientists from Australia and France have used the geological record of Earth’s deep oceans to discover a connection between the orbits of our home...

This side of a commemorative plate mounted on NASA’s Europa Clipper spacecraft features U.S. Poet Laureate Ada Limón’s handwritten In Praise of Mystery: A Poem for Europa. Image credit: NASA / JPL-Caltech.

NASA Scientists Unveil Design for Europa Clipper’s ‘Golden Record’

Mar 12, 2024 by News Staff

NASA’s Europa Clipper spacecraft will carry a triangular metal plate with a special message when it launches in October 2024 and heads toward Jupiter’s...

This illustration shows charged particles from Jupiter impacting Europa’s surface, splitting frozen water molecules into oxygen and hydrogen molecules; scientists believe some of these newly created oxygen gases could migrate toward the moon’s subsurface ocean, as depicted in the inset image. Image credit: NASA / JPL-Caltech / SWRI / PU.

Europa Produces Less Oxygen than Previously Thought

Mar 4, 2024 by News Staff

Using data from the Jovian Auroral Distributions Experiment (JADE) instrument onboard NASA’s Juno spacecraft, planetary scientists have calculated the...

This image from ESA’s Mars Express shows an area close to Mars’ north pole. The image comprises data gathered by Mars Express’ High Resolution Stereo Camera (HRSC) on April 14, 2023. Image credit: ESA / DLR / FU Berlin.

Mars Express Spots Sand Dunes and Ice Layers at Martian North Pole

Mar 1, 2024 by News Staff

New images from the High Resolution Stereo Camera (HRSC) on ESA’s Mars Express spacecraft show the terrain surrounding the permanent north polar ice...

The asteroid moonlet Dimorphos as seen by NASA’s DART spacecraft 11 seconds before impact. DART’s on board DRACO imager captured this image from a distance of 68 km (42 miles). This image was the last to contain all of Dimorphos in the field of view. Image credit: NASA / Hopkins Applied Physics Laboratory.

Asteroid Moonlet Dimorphos May Have Been Reshaped Following Impact from NASA’s DART Mission

Feb 28, 2024 by News Staff

On September 26, 2022, NASA’s Double Asteroid Redirection Test (DART) mission successfully impacted Dimorphos, the natural satellite of the binary near-Earth...

The discovery image of the Uranian moon S/2023 U1 using the Magellan telescope on November 4, 2023. Image credit: Scott Sheppard.

Astronomers Discover New Moons around Uranus and Neptune

Feb 26, 2024 by News Staff

The three newly-discovered moons — S/2023 U1, S/2002 N5 and S/2021 N1 — are the faintest ever found around Uranus and Neptune using ground-based...

Jezero Crater, one of the paleolakes examined in the study, is a paleolake and potential landing site for NASA’s Mars 2020 rover mission to look for past life; the outlet canyon carved by overflow flooding is visible in the upper right side of the crater; ancient rivers carved the inlets on the left side of the crater. Image credit: NASA / Tim Goudge.

Ancient Mars May Have Had Hydrothermal Systems

Feb 22, 2024 by News Staff

The history of water on Mars is a puzzle that is of interest to planetary scientists as well as the general public. The Red Planet currently has water...

Beyond Neptune, there is a large disk of small objects, called the Kuiper Belt and beyond that is the Oort Cloud, home of the comets. This artwork shows a section of Kuiper Belt, crowded with the icy cores of potential comets. Image credit: M. Kornmesser / ESO.

Kuiper Belt May Be Much Larger than Previously Estimated

Feb 20, 2024 by News Staff

Kuiper Belt objects (KBOs) are thought to be the dominant source of interplanetary dust particles in the outer Solar System due to both collisions between...

An artist’s rendering of the surface of Saturn’s largest moon, Titan. Image credit: Benjamin de Bivort, debivort.org / CC BY-SA 3.0.

Titan Most Likely Non-Habitable, Astrobiologists Say

Feb 20, 2024 by News Staff

Saturn’s moon Titan has an organic-rich atmosphere and surface with a subsurface ocean that may represent a habitable environment. In a new study, astrobiologists...

Glein et al. found evidence for hydrothermal or metamorphic activity deep within the icy dwarf planets Eris and Makemake. Image credit: Southwest Research Institute.

Webb Finds Evidence of Hydrothermal Processes in Interiors of Eris and Makemake

Feb 15, 2024 by News Staff

The icy dwarf planets Eris and Makemake have surfaces bearing methane ice of unknown origin. According to an analysis of data from the NASA/ESA/CSA James...

Arredondo et al. looked at four silicate-rich asteroids using the FORCAST instrument on NASA’s SOFIA observatory to isolate the mid-infrared spectral signatures indicative of molecular water on two of them: Iris and Massalia. Image credit: NASA / Carla Thomas / Southwest Research Institute.

SOFIA Detects Molecular Water on Nominally Dry Asteroids

Feb 13, 2024 by News Staff

Using the FORCAST instrument on NASA’s retired Stratospheric Observatory for Infrared Astronomy (SOFIA), astronomers have obtained mid-infrared spectra...

A topographic map of the Eridania region of Mars; volcanic structures described by Michalski et al. are classified by morphology and morphometrics. Image credit: Michalski et al., doi: 10.1038/s41550-023-02191-7.

Early Mars was Tectonically and Volcanically Active, Study Suggests

Feb 12, 2024 by News Staff

The relatively well-preserved ancient crust of Mars provides a natural window into early planetary evolution not available on Earth. Mars has generally...

The JunoCam instrument aboard NASA’s Juno spacecraft imaged Io, the most geologically active body in our Solar System, on February 3, 2024, from a distance of about 7,904 km (4,911 miles). Image credit: NASA / SwRI / MSSS.

NASA’s Juno Orbiter Captures Stunning Images of Jupiter’s Moon Io

Feb 9, 2024 by Natali Anderson

On February 3, 2024, NASA’s Juno spacecraft made a second close flyby of Io, the fifth of Jupiter’s moons and the third largest. Like the previous...

An artist’s impression of the ‘Snowball Earth.’ Image credit: Oleg Kuznetsov, http://3depix.com / CC BY-SA 4.0.

Low Volcanic Carbon Dioxide Emissions Triggered Sturtian ‘Snowball Earth’ Glaciation: Study

Feb 8, 2024 by News Staff

The Sturtian ‘Snowball Earth’ glaciation (717 to 661 million years ago) is regarded as the most extreme interval of icehouse climate in Earth’s history....

Mimas’ surface, like the surfaces of most of the other major Saturnian moons without atmospheres, is not pure ice but contains some dark impurities; the relatively dark markings appear along the lower portion of the walls of the 130-km-wide Herschel Crater (the peak in the middle of the crater is about as tall as Mount Everest; the impact that made it likely almost destroyed the moon) and some of the smaller craters; scientists interpret this darkening as evidence for the gradual concentration of impurities from evaporating icy materials in areas where the dark impurities slide slowly down the crater wall. Image credit: NASA / JPL / Space Science Institute.

Saturn’s Moon Mimas Harbors Global Ocean beneath Its Icy Shell, Study Suggests

Feb 7, 2024 by News Staff

From detailed analysis of Mimas’ orbital motion based on data from NASA’s Cassini mission, planetary researchers from Sorbonne Université, Nantes...

Predicted areas of slope instability in the south polar region of the Moon; the image is centered on Shackleton crater; locations of proposed Artemis III landing regions are shown (blue boxes); the model predicts that large portions of the interior walls of Shackleton crater are susceptible to landslides (inset), as are portions of the interior crater walls in the Nobile Rim 1 region. Image credit: Watters et al., doi: 10.3847/PSJ/ad1332.

Earth’s Moon is Shrinking, New Modeling Study Suggests

Jan 29, 2024 by News Staff

Earth’s Moon shrank more than 46 m (150 feet) in circumference as its core gradually cooled over the last few hundred million years, according to a paper...

This enhanced color view of NASA’s Ingenuity helicopter was generated using data collected by the Perseverance rover on August 2, 2023. Image credit: NASA.

NASA Announces End of Ingenuity Mission

Jan 29, 2024 by News Staff

NASA’s Ingenuity helicopter made history by achieving the first powered, controlled flight on another planet on April 19, 2021. Despite initial plans...

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