Space Exploration News

Composite image of Uranus. Image credit: Marcos van Dam / W. M. Keck Observatory.

Uranus May Actually Be Warmer than Previously Expected

Jul 18, 2025 by News Staff

Uranus releases about 15% more energy than it receives from the Sun, according to two new papers published in the journal Monthly Notices of the Royal...

This HiRISE image shows a flat top, heavily eroded fluvial sinuous ridge on Mars; sand dunes can be seen migrating over the top of the fluvial sinuous ridge. Image credit: NASA / JPL / University of Arizona.

Mars was Warm and Wet 3.7 Billion Years Ago, New Study Suggests

Jul 14, 2025 by News Staff

Planetary scientists have discovered more than 15,000 km of ancient riverbeds in Noachis Terra, a region in Mars’ southern highlands. This discovery...

Image of the entire NWA 16254 sample studied by Chen et al.: (a) a backscattered electron (BSE) image obtained by the TESCAN Integrated Mineral Analyzer (TIMA); (b) mineralogical mapping via TIMA; (c) distribution map of the iron content obtained via TIMA; (d) distribution map of the calcium content obtained via TIMA. Image credit: Chen et al., doi: 10.15302/planet.2025.25002.

Newly-Discovered Meteorite Offers Insights into Volcanic Processes on Ancient Mars

Jul 10, 2025 by Natali Anderson

The Martian meteorite Northwest Africa (NWA) 16254 is a 406-g gabbroic shergottite found two years ago in Algeria. Image of the entire NWA 16254 sample...

Backscattered electron image of the NWA 16286 sample. Image credit: Joshua Snape / University of Manchester.

2.35-Billion-Year-Old Lunar Meteorite Fills One-Billion-Year Gap in Volcanic History of the Moon

Jul 9, 2025 by News Staff

An analysis of Northwest Africa (NWA) 16286, a lunar meteorite with a unique chemical signature, offers fresh insights into how the Moon’s interior evolved,...

Donaldjohanson as seen by NASA’s Lucy spacecraft from a range of about 2,700 km (1,700 miles), about 3.2 minutes before closest approach on April 20, 2025. The illumination conditions, with the Sun almost behind Lucy, greatly reduce the contrast of topographic details. Image credit: NASA / Goddard / SwRI / Johns Hopkins APL.

Lucy Provides Full View of Main-Belt Asteroid Donaldjohanson

Jul 7, 2025 by News Staff

NASA’s Lucy mission continues to analyze images collected during the spacecraft’s April 20, 2025 encounter with the carbonaceous asteroid Donaldjohanson. Donaldjohanson...

An artist’s impression of a terraformed Mars. Image credit: Daein Ballard / CC BY-SA 3.0.

Can We Make Mars Habitable through Terraforming?

Jun 12, 2025 by News Staff

In their new paper, Los Alamos National Laboratory planetary scientist Nina Lanza and colleagues looked at what would be needed to make the surface environment...

This image of an impact crater in the Sirenum Fossae region of Mars was taken by NASA’s Mars Reconnaissance Orbiter on March 30, 2015. The crater is approximately 3,300 feet (1-km) wide and appears relatively recent as it has a sharp rim and well-preserved ejecta. The steep inner slopes are carved by gullies and include possible recurring slope lineae on the equator-facing slopes. Image credit: NASA / JPL / University of Arizona / Alfred McEwen.

Slope Streaks on Mars are Dry, New Study Suggests

May 26, 2025 by News Staff

Slope streaks are dark features on Martian slopes that form spontaneously and fade over years to decades. Some planetary scientists have interpreted those...

This view of Titan is among the last images NASA’s Cassini spacecraft sent to Earth before it plunged into the giant planet’s atmosphere. Image credit: NASA / JPL-Caltech / Space Science Institute.

Atmosphere of Saturn’s Hazy Moon Titan Wobbles Like Gyroscope, Planetary Researchers Find

May 22, 2025 by News Staff

Titan is the only moon in the Solar System with a significant atmosphere, and one that has long captivated planetary scientists. According to a new analysis...

Artist’s impression of a volcano erupting on Venus. Image credit: ESA / AOES Medialab.

Planetary Scientists Find New Evidence for Tectonic Activity on Venus

May 20, 2025 by News Staff

Venus, Earth’s ‘twin planet,’ presents clear contrasts in terms of surface conditions, atmospheric chemistry, and tectonic state. Understanding the...

The first visible-light image of green aurora on Mars (left), taken by the Mastcam-Z instrument on NASA’s Perseverance rover. On the right is a comparison image of the night sky of Mars without aurora but featuring the Martian moon Deimos. The moonlit Martian night sky, lit up mostly by Mars’ nearer and larger moon Phobos (outside the frame) has a reddish-brown hue due to the dust in the atmosphere, so when green auroral light is added, the sky takes on a green-yellow tone, as seen in the left image. Image credit: NASA / JPL-Caltech / ASU / MSSS / SSI.

Perseverance Detects Visible-Wavelength Aurora on Mars

May 19, 2025 by News Staff

Mars hosts various auroral processes despite the planet’s tenuous atmosphere and lack of a global magnetic field. To date, all aurora observations have...

An artist’s illustration of a solar storm. Image credit: NASA.

Radiocarbon Spike 14,350 Years Ago was Caused by Strongest Known Solar Storm, Study Confirms

May 15, 2025 by News Staff

The Sun rarely produced extreme solar particle events, orders of magnitude stronger than everything directly observed. Their enormous power can greatly...

These images of Titan, taken by Webb on July 11, 2023 (top row), and the Keck II telescope on July 14, 2023 (bottom row), show methane clouds (white arrows) appearing at different altitudes in Titan’s northern hemisphere. Image credit: NASA / ESA / CSA / STScI / Keck Observatory.

Weather Report from Saturn’s Moon Titan: Partly Cloudy with Occasional Methane Showers

May 14, 2025 by NASA

Using data from the NASA/ESA/CSA James Webb Space Telescope and the Keck II telescope, astronomers found evidence of cloud convection in the northern hemisphere...

An artist’s concept of active volcanoes on Venus, depicting a subduction zone where the foreground crust plunges into the planet’s interior at the topographic trench. Image credit: NASA / JPL-Caltech / Peter Rubin.

Modeling Study Provides New Details about Venus’ Crust

May 12, 2025 by News Staff

Planetary scientists expected the outermost layer of the crust of Earth’s hotter twin would grow thicker and thicker over time given its apparent lack...

The Stac Fada Member. Image credit: Tony Prave.

Massive Meteorite Struck Northwestern Scotland 990 Million Years Ago

Apr 30, 2025 by News Staff

Previously believed to have occurred 1.2 billion years ago, this ancient impact created the Stac Fada Member, a layer of rock that holds vital clues to...

As NASA’s Dawn spacecraft takes off for its next destination, this mosaic synthesizes some of the best views the spacecraft had of the giant asteroid Vesta. Dawn studied Vesta from July 2011 to September 2012. The towering mountain at the south pole -- more than twice the height of Mount Everest -- is visible at the bottom of the image. The set of three craters known as the ‘snowman’ can be seen at the top left. Image credit: NASA / JPL-Caltech / UCLA / MPS / DLR / IDA.

Vesta Lacks Metallic Core, New Research Suggests

Apr 28, 2025 by News Staff

Vesta, the second largest asteroid in our Solar System, has not experienced full differentiation into a metallic core, silicate mantle and basaltic crust,...

This artist’s impression shows how Mars may have looked about 4 billion years ago. Image credit: M. Kornmesser / ESO.

Early Mars Had Climate Warm Enough to Support Rain, New Modeling Study Suggests

Apr 22, 2025 by News Staff

Observations of large valley networks on today’s Mars suggest formation by flowing water. However, most climate models cannot sustain temperatures above...

This image of the asteroid Donaldjohanson was captured by the Lucy Long-Range Reconnaissance Imager (L’LORRI) on April 20, 2025, near closest approach, from a range of 1,100 km (660 miles). Image credit: NASA / Goddard / SwRI / Johns Hopkins APL / NOIRLab.

Lucy Shares Stunning Images from Flyby of Asteroid Donaldjohanson

Apr 22, 2025 by News Staff

An asteroid called Donaldjohanson was captured by NASA’s Lucy spacecraft during a flyby on April 20, 2025. At closest approach, the spacecraft came within...

This composite image shows an infrared view of Titan. In this image blue represents wavelengths centered at 1.3 microns, green represents 2.0 microns, and red represents 5.0 microns. A view at visible wavelengths would show only Titan’s hazy atmosphere; the near-infrared wavelengths in this image allow Cassini’s vision to penetrate the haze and reveal the moon’s surface. The view looks toward terrain that is mostly on the Saturn-facing hemisphere of Titan. Image credit: NASA / JPL-Caltech / Space Science Institute.

Many of Titan’s Rivers Do Not End in Deltas, New Study Finds

Apr 18, 2025 by News Staff

Earth’s coastlines are fascinating places where liquids mix and materials are shaped into distinct landforms like river deltas. Similar active coastlines...

Curiosity sees its tracks receding into the distance at a site nicknamed Ubajara on April 30, 2023; this site is where the rover made the discovery of siderite. Image credit: NASA / JPL-Caltech / MSSS.

Carbonate Minerals Found by Curiosity Indicate Carbon Cycle Operated on Early Mars

Apr 17, 2025 by News Staff

NASA’s Curiosity rover has found evidence of a carbon cycle on ancient Mars, bringing scientists closer to an answer on whether the planet was ever capable...