Space Exploration News

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...

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...

This image shows a height map of the Martian surface, with lowest land in blue and highest in white. Image credit: ESA.

Mars Express Finds New Evidence for Ice-Rich Layered Deposits in Medusae Fossae

Jan 22, 2024 by News Staff

Over 15 years ago, ESA’s Mars Express spacecraft studied the Medusae Fossae Formation, revealing enigmatic deposits up to 2.5 km deep. From those early...

Wild 2 Comet Contains High Fraction of Dust from Young Solar System, Study Shows

Jan 17, 2024 by Enrico de Lazaro

NASA’s Stardust mission returned rocky material from the coma of comet 81P/Wild 2 (pronounced ‘Vilt 2’) to Earth on January 15, 2006. Comet Wild...

A map of the titanium abundances of the Moon’s surface, obtained from NASA’s Clementine spacecraft; the red parts indicate extremely high concentrations compared to terrestrial rocks. Image credit: Lunar and Planetary Institute.

Scientists Solve Major Puzzle in Moon’s Geology

Jan 15, 2024 by News Staff

New research from the University of Bristol sheds light on the origin of titanium-rich basaltic magmas on the Moon. A map of the titanium abundances of...

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

Combination of Two Minerals Can Explain Mysterious UV Absorber in Clouds of Venus

Jan 8, 2024 by Enrico de Lazaro

The clouds of Venus are believed to be composed of sulfuric acid and minor constituents including iron-bearing compounds. Respective concentrations of...

Summary of the fate of simple and complex organics on Titan’s surface. Image credit: Yu et al., doi: 10.1029/2023GL106156.

‘Magic Islands’ on Titan’s Hydrocarbon Lakes Are Floating Chunks of Porous Organic Solids

Jan 8, 2024 by Enrico de Lazaro

Titan, the largest moon of Saturn, has a unique atmosphere that transforms simple gases like methane and nitrogen into more complex organic compounds....

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.

Polycyclic Aromatic Hydrocarbons in Asteroids Predate Our Solar System, New Study Shows

Dec 22, 2023 by Enrico de Lazaro

Astronomical observations show that polycyclic aromatic hydrocarbons (PAHs) are abundant and widespread in the interstellar medium. PAH molecules consist...

Enceladus’ tiger stripes are known to be spewing ice from the moon’s icy interior into space, creating a cloud of fine ice particles over the moon’s south pole and creating Saturn’s mysterious E-ring. Evidence for this has come from NASA’s Cassini spacecraft that orbited Saturn from 2004 to 2017. Pictured here, a high resolution image of Enceladus is shown from a close flyby. Tiger stripes are visible in false-color blue. Image credit: NASA / ESA / JPL / SSI / Cassini Imaging Team.

Enceladus’ Surface May Contain Relatively High Abundances of Pristine Organic Material

Dec 21, 2023 by News Staff

Enceladus, the sixth-biggest moon of Saturn, presents a remarkable opportunity in our Solar System for searching for evidence of extraterrestrial life,...

A computer screen shows Taters the cat in a still from the first high-definition streaming video to be sent via laser from deep space, as well as the incoming data stream delivering the frames from the video. Image credit: NASA.

NASA Streams Cat Video from Deep Space via Laser

Dec 20, 2023 by News Staff

A 15-second ultra-high-definition video, featuring a cat named Taters, was streamed via laser from a record-setting 31 million km (19 million miles, or...

Illustration of plume activity on Enceladus. Image credit: Peter et al., doi: 10.1038/s41550-023-02160-0.

Planetary Researchers Detect Hydrogen Cyanide in Plume of Enceladus

Dec 17, 2023 by News Staff

Using data from NASA’s Cassini mission, planetary scientists have detected several compounds of strong importance to the habitability of Saturn’s icy...

Astronaut David R. Scott, commander, gives a military salute while standing beside the deployed United States flag during the Apollo 15 lunar surface extravehicular activity (EVA) at the Hadley-Apennine landing site. The flag was deployed toward the end of EVA-2. The Lunar Module, ‘Falcon,’ is partially visible on the right. Hadley Delta in the background rises approximately 4,000 m (about 13,124 feet) above the plain. The base of the mountain is approximately 5 km (about three statue miles) away. This photograph was taken by astronaut James B. Irwin, lunar module pilot. While astronauts Scott and Irwin descended in the Lunar Module to explore the Moon, astronaut Alfred M. Worden, command module pilot, remained in lunar orbit in the Command and Service Modules. Image credit: NASA / JSC.

Lunar Anthropocene: Are We in New Epoch of Moon’s History?

Dec 11, 2023 by Natali Anderson

In a paper published in the journal Nature Geoscience, Kansas Geological Survey researcher Justin Holcomb and his colleagues argue the new epoch may have...

Psyche’s first images make up this mosaic showing a starfield in the constellation of Pisces. Image credit: NASA / JPL-Caltech / ASU.

NASA’s Psyche Spacecraft Beams Back Its First Images

Dec 6, 2023 by News Staff

Already 26 million km (16 million miles) from Earth, NASA’s Psyche spacecraft will arrive at its target asteroid Psyche in 2029. The Psyche team wanted...