Space Exploration News

Mars Express Observes Rare Celestial Alignments in Solar System

Deimos passing in front of Jupiter and its Galilean moons. Image credit: ESA / DLR / FU Berlin / K.-D. Matz.
Oct 14, 2022 by News Staff

New videos captured by the High Resolution Stereo Camera (HRSC) on board ESA’s Mars Express orbiter show the rare moment of the Martian moon Deimos passing in front of Jupiter and its Galilean moons as well as the Martian moon Phobos drifting in front of Deimos. Deimos passing in front of Jupiter and its Galilean moons. Image credit: ESA / DLR / FU Berlin / K.-D. Matz. Phobos and Deimos were discovered by American astronomer Asaph Hall at the U.S....

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Review of the mechanisms proposed in the literature to explain the emplacement of liquid reservoirs invoked to correspond to a variety of geological features at Europa’s surface. Image credit: Lesage et al., doi: 10.3847/PSJ/ac75bf.

Shallow Lakes in Europa’s Crust Could Erupt, Planetary Scientists Say

Oct 13, 2022 by News Staff

In the search for life beyond Earth, subsurface bodies of water in the outer Solar System are some of the most important targets. That’s why NASA and...

This image from ASI’s LICIACube satellite shows the plumes of ejecta streaming from Dimorphos after DART made impact with it on September 26, 2022. Each rectangle represents a different level of contrast in order to better see fine structure in the plumes. By studying these streams of material, we will be able to learn more about the asteroid and the impact process. Image credit: ASI / NASA / Johns Hopkins Applied Physics Laboratory.

DART’s Impact Altered Orbit of Dimorphos, NASA Says

Oct 12, 2022 by News Staff

On September 26, 2022, NASA’s Double Asteroid Redirection Test (DART) intentionally slammed into Dimorphos, a moonlet of the asteroid Didymos. According...

A fireball. Image credit: Urikyo33.

Second Ever Interstellar Meteor Discovered

Oct 10, 2022 by Sergio Prostak

Both the first and second interstellar meteors, IM1 and IM2, are outliers in material strength and may have originated in supernova explosions, according...

The young Mars would have had enough water to cover its entire surface in a liquid layer about 140 m deep, but it is more likely that the liquid would have pooled to form an ocean occupying almost half of Mars’s northern hemisphere, and in some regions reaching depths greater than 1.6 km. Image credit: M. Kornmesser / ESO / N. Risinger, skysurvey.org.

Mars was Habitable for Methanogenic Microorganisms 3.7 Billion Years Ago, Study Suggests

Oct 10, 2022 by News Staff

The subsurface of Mars during the Noachian period was likely to have been habitable for microorganisms that feed on hydrogen and produce methane, according...

These images shows Jupiter’s icy moons Ganymede and Europa with Jupiter in the background. Image credit: ESO / King & Fletcher / NASA / ESA / A. Simon, NASA’s Goddard Space Flight Center / M.H. Wong, University of California, Berkeley / OPAL Team.

SPHERE Helps Determine Surface Compositions of Europa and Ganymede

Oct 10, 2022 by Natali Anderson

Astronomers using the Spectro-Polarimetric High-contrast Exoplanet REsearch (SPHERE) instrument on ESO’s Very Large Telescope have imaged Jupiter’s...

This view of Europa was captured by JunoCam during Juno’s close flyby on September 29, 2022. Citizen scientist Björn Jónsson processed the view to create this image. Image credit: NASA / JPL-Caltech / SwRI / MSSS / Björn Jónsson / CC BY-NC-SA 2.0.

Incredible New Images of Europa Released by NASA

Oct 7, 2022 by News Staff

These images of Jupiter’s icy moon Europa were taken by the JunoCam instrument aboard NASA’s Juno spacecraft during a close approach on September 29,...

This Juno photo of the surface of Europa reveals a curious feature surrounded by a vast network of linear ridges and dark blotches. It was obtained by Juno’s Stellar Reference Unit (SRU) during the spacecraft’s September 29, 2022, flyby of Europa at a distance of about 412 km. Image credit: NASA / JPL-Caltech / SwRI.

Juno Team Releases New Close-Up of Europa

Oct 6, 2022 by News Staff

This black-and-white image of Jupiter’s icy moon Europa was taken by the Stellar Reference Unit (SRU) instrument on board NASA’s Juno orbiter during...

This image from the 4.1-m Southern Astrophysical Research Telescope shows the more than 10,000-km-long dust trail stretching from the asteroid moonlet Dimorphos. Image credit: CTIO / NOIRLab / SOAR / NSF / AURA / T. Kareta, Lowell Observatory / M. Knight, U.S. Naval Academy / T.A. Rector, University of Alaska Anchorage & NSF’s NOIRLab / M. Zamani & D. de Martin, NSF’s NOIRLab.

Astronomers Spot Huge Trail of Debris from DART Collision with Dimorphos

Oct 4, 2022 by News Staff

On September 26, 2022, NASA’s DART spacecraft intentionally crashed into the asteroid moonlet Dimorphos for the first planetary defense test. Two days...

This look at the complex, ice-covered surface of Europa came from Juno during a close pass on September 29, 2022. The spacecraft had only a two-hour window to collect it, racing past the moon with a relative velocity of about 23.6 km per second (14.7 miles per second). Image credit: NASA / JPL-Caltech / SWRI / MSSS.

Juno Flyby Reveals Stunning New Image of Europa

Sep 30, 2022 by News Staff

This new image of Jupiter’s moon Europa, captured during NASA’s Juno spacecraft’s closest approach on September 29, 2022, shows a region near the...

This Webb image shows observations of the Didymos-Dimorphos system several hours after NASA’s Double Asteroid Redirection Test (DART) intentionally impacted the moonlet. Image credit: NASA / ESA / CSA / Jian-Yang Li, PSI / Cristina Thomas, Northern Arizona University / Ian Wong, NASA-GSFC / Joseph DePasquale, STScI / Alyssa Pagan, STScI.

Webb and Hubble Simultaneously Observe DART Impact

Sep 29, 2022 by News Staff

The NASA/ESA/CSA James Webb Space Telescope and the NASA/ESA Hubble Space Telescope teamed up to collect data before and after NASA’s Double Asteroid...

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.

NASA’s DART Spacecraft Successfully Impacts Asteroid Moonlet Dimorphos

Sep 27, 2022 by News Staff

After 10 months flying in space, NASA’s Double Asteroid Redirection Test (DART) spacecraft crashed into the 160-m-wide asteroid moonlet Dimorphos —...

Didymos as seen on the night of September 25/26, 2022 with ESO’s Very Large Telescope. Image credit: ESO / Bagnulo et al.

VLT Observes Asteroid Didymos before DART Impact

Sep 26, 2022 by Enrico de Lazaro

NASA’s Double Asteroid Redirection Test (DART) spacecraft is set to crash into Dimorphos, a moon of the asteroid Didymos, on September 26, 2022, at 7:14...

A panning-view of Jupiter’s upper atmospheric temperatures, 1,000 km (621 miles) above the cloud tops; the auroral region (near the northern pole, in yellow/white) appears to have shed a massive, planetary-scale wave of heating towards the equator. Image credit: NASA / ESA / Hubble / A. Simon / NASA’s Goddard Space Flight Center / J. Schmidt / O’Donoghue et al., doi: 10.5194/epsc2022-373.

Huge Heat Wave Spotted in Upper Atmosphere of Jupiter

Sep 23, 2022 by News Staff

The high-temperature planetary-scale-sized structure is at least 130,000 km (80,778 miles) long, according to a new study led by JAXA scientists. A panning-view...

This image of the asteroid Ryugu was captured by the Optical Navigation Camera - Telescopic (ONC-T) on JAXA’s Hayabusa-2 spacecraft on June 26, 2018, from a distance of 13.7 miles (22 km). Image credit: JAXA / University of Tokyo / Kochi University / Rikkyo University / Nagoya University / Chiba Institute of Technology / Meiji University / Aizu University / AIST.

Asteroid Ryugu’s Parent Body Formed in Outer Solar System, New Analysis Suggests

Sep 23, 2022 by News Staff

Samples of the near-Earth asteroid (162173) Ryugu were brought to Earth by JAXA’s Hayabusa-2 spacecraft. This image of the asteroid Ryugu was captured...

This image shows ‘frosted cupcake’ clouds in the atmosphere of Jupiter. The image was taken at a nominal altitude of 13,536.3 km above Jupiter’s cloud tops. image credit: NASA / JPL-Caltech / SwRI / MSSS / Gerald Eichstädt.

Juno Spots ‘Frosted Cupcake’ Clouds on Jupiter

Sep 22, 2022 by News Staff

Intensity data of visible light seen by a camera can be plotted as a 3D elevation landscape. The new computer animation, created by citizen scientist and...

Phosphorus in the form of orthophosphate (e.g., HPO4-2) is likely abundant in the subsurface ocean of Saturn’s moon Enceladus; a soda or alkaline ocean (containing NaHCO3 and/or Na2CO3) inside of Enceladus interacts geochemically with a rocky core; modeling indicates that this interaction promotes the dissolution of phosphate minerals, making orthophosphate readily available to possible life in the ocean; because phosphorus is an essential ingredient for life, this finding bolsters mounting evidence for habitability within this small Saturnian moon. Image credit: Southwest Research Institute.

Subsurface Ocean of Enceladus is Rich in Phosphorus, Suggests Study

Sep 20, 2022 by News Staff

Enceladus is one of the prime targets in the search for life in our Solar System. Observations made by NASA’s Cassini spacecraft show that this small...

These craters were formed by a meteoroid impact on Mars on September 5, 2021, the first to be detected by NASA’s InSight lander; taken by NASA’s Mars Reconnaissance Orbiter, this enhanced-color image highlights the dust and soil disturbed by the impact in blue in order to make details more visible to the human eye. Image credit: NASA / JPL-Caltech / University of Arizona.

NASA’s InSight Lander Detects Seismic and Acoustic Waves from Meteoroid Impacts on Mars

Sep 20, 2022 by News Staff

The Seismic Experiment for Internal Structure (SEIS) seismometer on NASA’s InSight lander picked up vibrations and sounds from four space rocks that...

This image shows a rocky outcrop called Wildcat Ridge, where NASA’s Perseverance rover extracted two rock cores and abraded a circular patch to investigate the rock’s composition. Image credit: NASA / JPL-Caltech / ASU / MSSS.

Perseverance Detects Organics in New Samples from Martian Jezero Crater

Sep 19, 2022 by News Staff

In 2014, NASA’s Curiosity rover found evidence of organic matter in rock-powder samples from Gale crater, and NASA’s Perseverance rover has detected...

Composite of a true color image of Saturn, observed by Cassini in 2016, overlaid with a false color representation of the ultraviolet aurora in the northern hemisphere as observed on August 20, 2017. Image credit: NASA / JPL-Caltech / Space Science Institute / A. Bader, Lancaster University.

Destroyed Moon Could Explain Saturn’s Young Rings and Present-Day Tilt

Sep 16, 2022 by News Staff

Saturn’s rings — thought to have formed a mere 100 million years ago — are one of the most distinctive planetary features in our Solar System....

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