Tag Archive for 'Planet'

Patchy proton aurora on Mars. Image credit: EMM / EMUS / UAE Space Agency.

MAVEN and EMM Orbiters Observe ‘Patchy’ Proton Aurora on Mars

Aug 31, 2022 by News Staff

Even though Mars does not have a global magnetic field like the Earth, it still possesses multiple kinds of aurora. One of these is proton aurora, which...

The iron-carbon alloy reacted with water at high pressure and high temperature conditions related to the Earth’s deep mantle in a diamond-anvil cell. Image credit: Ko et al., doi: 10.1029/2022GL098271.

‘Diamond Factory’ May Have Existed in Earth’s Interior for Billions of Years: Study

Aug 31, 2022 by News Staff

Carbon plays a vital role in geological processes occurring in the Earth’s interior. While most carbon on our planet exists in its core, whether or not...

This artist’s concept depicts NASA’s Perseverance rover. Image credit: NASA / JPL-Caltech.

Perseverance Provides Insights into History and Composition of Rocks in Martian Jezero Crater

Aug 26, 2022 by News Staff

According to a series of four papers by the Perseverance science team, the floor of Jezero crater had eroded more than planetary researchers expected....

(A) the Milky Way Galaxy with superimposed spiral arms and geological events: the arm and the Solar System rotate clockwise at different rates; the ‘+’ number denotes the number of times Earth has passed through that arm; (B) model of the Oort cloud showing cometary nuclei; (C) schematic reconstruction of early Earth impact process; (D) early crustal nuclei development. Image credit: NASA / JPL-Caltech / ESO / R. Hurt / Kirkland et al., doi: 10.1130/G50513.1.

Transits through Milky Way’s Spiral Arms Helped Form Early Earth’s Continental Crust, Study Says

Aug 24, 2022 by News Staff

New research led by Curtin University geologists suggests that regions of space with dense interstellar clouds may send more high-energy comets crashing...

This NIRCam/Webb image from two filters -- F212N (orange) and F335M (cyan)-- shows the Jupiter system. Image credit: NASA / ESA / CSA / Jupiter ERS Team / Ricardo Hueso, UPV & EHU / Judy Schmidt.

Webb Team Releases New Photos of Jupiter

Aug 23, 2022 by News Staff

The two new images of Jupiter were taken with Webb’s Near-Infrared Camera (NIRCam), which has three specialized infrared filters that showcase details...

The detailed global map of hydrated mineral deposits on Mars; various landing sites and areas of interest are shown; Mawrth Vallis is an ancient water outflow channel that is rich in clays; Oxia Planum is another clay-rich region and has been selected as the landing site for ESA’s Rosalind Franklin rover; Meridiani Planum straddles the Martian equator and was the landing spot for NASA’s Mars Exploration Rover Opportunity in 2004; Valles Marineris is one of the largest canyons in the Solar System’ Gale crater and Jezero crater were the landing sites of NASA’s Curiosity and Perseverance rovers in 2012 and 2020, respectively. Image credit: ESA / Mars Express / NASA / Mars Reconnaissance Orbiter.

Planetary Scientists Create First Global High-Resolution Map of Martian Aqueous Minerals

Aug 23, 2022 by News Staff

The newly-released map shows the locations and abundances of secondary minerals formed through interaction with water on Mars. It is based on the analysis...

Since landing on Mars in August 2012, Curiosity has been exploring Mt. Sharp in Gale Crater. Image credit: NASA / JPL-Caltech.

NASA’s Curiosity Rover Celebrates Ten Years on Mars

Aug 5, 2022 by News Staff

NASA’s Curiosity rover successfully landed in Gale Crater on Mars on August 5, 2012, to search for evidence that the Red Planet could once have supported...

(a) Location of the Buckskin mudstone sample (red star) in Gale Crater, Mars; (b and c) images from the Mars Hand Lens Imager onboard the Curiosity rover of (b) Lamoose, a local float block adjacent to Buckskin within the Murray formation showing laminations, and (c) Buckskin. Image credit: NASA / JPL-Caltech / University of Arizona.

Rare Mineral from Martian Crater was Created in Explosive Volcanic Eruption Over 3 Billion Years Ago

Jul 26, 2022 by News Staff

Tridymite is a high-temperature, low-pressure form of quartz that is extremely rare on Earth, and it wasn’t clear how a chunk of it ended up in Gale...

An artist’s rendering of Jupiter with rings that rival Saturn’s. Image credit: Stephen Kane / University of California, Riverside.

Study: Massive Galilean Moons Prevented Formation of Giant Ring System around Jupiter

Jul 21, 2022 by News Staff

Planetary rings are often speculated as being a relatively common attribute of giant planets, partly based on their prevalence within the Solar System....

This image, captured by the High Resolution Stereo Camera (HRSC) onboard ESA’s Mars Express on April 21, 2022, shows Ius and Tithonium Chasmata, which form part of Mars’ Valles Marineris canyon structure. Image credit: ESA / DLR / FU Berlin.

Mars Express Spots Two Huge Canyons in Valles Marineris

Jul 21, 2022 by News Staff

The new image from the High Resolution Stereo Camera (HRSC) aboard ESA’s Mars Express spacecraft shows sections of Ius Chasma and Tithonium Chasma —...

This image from Webb’s NIRCam instrument 2.12 micron filter shows Jupiter (center) and its moon Europa (left). Image credit: NASA / ESA / CSA / B. Holler & J. Stansberry, STScI.

Webb Team Releases Test Images of Jupiter and Its Moons

Jul 19, 2022 by News Staff

Several images of Jupiter and its moons as well as images and spectra of solar system asteroids from Webb’s commissioning period are now available on...

An artist’s impression of where an asteroid hit the surface of Mars 5-10 million years ago, ejected NWA 7034 and its transit to the Earth. Image credit: Curtin University.

Planetary Scientists Identify Home Crater of Famous Martian Meteorite

Jul 13, 2022 by Natali Anderson

New research shows that the Martian meteorite Northwest Africa (NWA) 7034, known more commonly as ‘Black Beauty,’ was ejected between 5 and 10 milliom...

An artist’s impression of the Gliese 414 system. Image credit: Sci-News.com.

Study: Location and Amount of Land on Planet’s Surface Can Significantly Impact Its Habitability

Jul 12, 2022 by News Staff

University of Toronto astronomer Evelyn Macdonald and her colleagues have identified substantial differences in surface temperature, sea ice and water...

This illustration shows the NASA cryobot concept called Probe using Radioisotopes for Icy Moons Exploration (PRIME) deploying tiny SWIM robots into the ocean miles below a lander on the frozen surface of an ocean world. Image credit: NASA / JPL-Caltech.

Swarm of Cellphone-Size Robots Could Look for Alien Life on Europa or Enceladus

Jul 7, 2022 by News Staff

Someday, dozens of tiny swimming robots could whisk through the water beneath the icy shell of Jupiter’s moon Europa or Saturn’s moon Enceladus, looking...

An artist’s impression of ESA’s Mars Express spacecraft. Image credit: ESA / ATG Medialab / DLR / FU Berlin / CC BY-SA 3.0 IGO.

Mars Express Orbiter’s Instrument Gets Major Software Upgrade

Jun 29, 2022 by News Staff

The Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS) instrument onboard ESA’s Mars Express spacecraft is receiving a major software...

BepiColombo captured this view of Mercury on June 23, 2023 as the spacecraft flew past the planet for its second of six gravity assist maneuvers at Mercury. This image was taken at 09:51:07 UTC by the Mercury Transfer Module’s Monitoring Camera 3, when the spacecraft was 1,406 km from the surface of Mercury. Closest approach of 200 km took place shortly before, at 09:44 UTC. In this view, north is up. While clearly a heavily cratered region, this image also highlights some of Mercury’s volcanic history. Mercury’s smooth plains were formed by volcanic eruptions of runny lavas that spread across the planet 3.7 billion years ago -- such as the plains visible between BepiColombo’s high-gain antenna and towards Mercury’s limb. The eruptions that formed these plains did not commonly build volcanoes that we are familiar with on Earth. The floor of the 125-km-wide Heaney crater (next to BepiColombo’s high-gain antenna in the centre of this image) is covered in smooth volcanic plains, and a small mound is illuminated. This is a rare example of a candidate volcano on Mercury, which will be an important target for BepiColombo’s high resolution imaging suite once in orbit. North of Heaney, past the high-gain antenna, is the 105-km-wide Amaral crater with a clearly defined rim and a central peak cluster. The region surrounding Amaral is pockmarked with so-called secondary craters caused by material ejected from Amaral during its formation re-impacting onto the surface nearby. This texture is common around fresh craters on Mercury. Image credit: ESA / BepiColombo / MTM.

BepiColombo Makes Its Second Gravity Assist Flyby of Mercury

Jun 24, 2022 by News Staff

BepiColombo, a joint endeavor between the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA), captured beautiful views of the...

Venus in real colors, processed from Mariner 10 images. Image credit: Mattias Malmer / NASA.

Sulfur-Metabolizing Aerial Life Cannot Explain Composition of Venus’ Atmosphere, Scientists Say

Jun 21, 2022 by News Staff

In new research, a team of scientists at the University of Cambridge has tested the ‘life in the Venusian clouds’ hypothesis. Jordan et al. demonstrate...

This image shows part of the scarred and colorful landscape in Aonia Terra, Mars. The image comprises data gathered by Mars Express’ High Resolution Stereo Camera (HRSC) on April 25, 2022. It was created using data from the nadir channel, the field of view aligned perpendicular to the surface of Mars, and the color channels of the HRSC. Image credit: ESA / DLR / FU Berlin.

Mars Express Sees ‘Colorful’ Landscape in Aonia Terra

Jun 15, 2022 by News Staff

A new image from ESA’s Mars Express orbiter shows part of Aonia Terra, an upland region in the southern highlands of Mars. This image shows part of the...

This visible-light image of Jupiter was created from data captured on January 11, 2017 using Hubble’s Wide Field Camera 3. Near the top, a long brown feature called a ‘brown barge’ extends 72,000 km (nearly 45,000 miles) in the east-west direction. The Great Red Spot stands out prominently in the lower left, while the smaller feature nicknamed Red Spot Jr. (known to Jovian scientists as Oval BA) appears to its lower right. Image credit: NASA / ESA / NOIRLab / NSF / AURA / Wong et al. / de Pater et al. / M. Zamani.

Jupiter’s Atmosphere is Inhomogeneous, New Study Suggests

Jun 8, 2022 by News Staff

While the massive atmosphere of Jupiter consists mainly of hydrogen and helium, the key to understanding the gas giant’s formation and evolution lies...

This diagram shows three layers of aerosols in the atmospheres of Uranus and Neptune. The height scale on the diagram represents the pressure above 10 bar. The deepest layer (Aerosol-1 layer) is thick and composed of a mixture of hydrogen sulfide ice and particles produced by the interaction of the planets’ atmospheres with sunlight. The key layer that affects the colors is the middle layer, which is a layer of haze particles (Aerosol-2 layer) that is thicker on Uranus than on Neptune. Irwin et al. suspect that, on both planets, methane ice condenses onto the particles in this layer, pulling the particles deeper into the atmosphere in a shower of methane snow. Because Neptune has a more active, turbulent atmosphere than Uranus does, the team believes Neptune’s atmosphere is more efficient at churning up methane particles into the haze layer and producing this snow. This removes more of the haze and keeps Neptune’s haze layer thinner than it is on Uranus, meaning the blue color of Neptune looks stronger. Above both of these layers is an extended layer of haze (Aerosol-3 layer) similar to the layer below it but more tenuous. On Neptune, large methane ice particles also form above this layer. Image credit: Gemini Observatory / NOIRLab / NSF / AURA / J. da Silva / NASA / JPL-Caltech / B. Jónsson.

Haze Layers are Responsible for Different Blue Hues of Neptune and Uranus, Scientists Say

Jun 1, 2022 by News Staff

An international team of planetary researchers led by University of Oxford scientists has performed an analysis of visible/near-infrared observations of...

«‹12 131415 16 ›»