A daily update by email. Science news, great photos, sky alerts.
Mars is ascending higher in the morning sky each month. Mars will be visible before dawn for the rest of 2024. Then, by the year's end, it'll suddenly become brighter!
For the 1st time, an orbiting spacecraft has detected water frost on Mars volcanoes. The daily amount of frost could fill 60 Olympic swimming pools.
The sun lobs its particles into the solar system, and studying this space weather on Mars helps us understand what future astronauts might face there.
Seafloor sediments provided new evidence that a 2.4 million-year-long resonance between Mars and Earth affects long-term changes in ocean currents and temps.
Mars craters pop in these new images showcasing the diversity of impacts across the red planet. ESA's ExoMars mission took these images. See them here!
New experiments show that methane on Mars, in Gale crater, may seep out of the ground when hard crusts of perchlorate salt temporarily warm up and weaken.
NASA's Perseverance rover sampled an unusual Mars rock called Bunsen Peak. It is rich in carbonate and silica and likely came from an ancient lakeshore beach.
An asteroid created a large Martian crater called Corinto, about 2 million years ago. Debris from the impact also created 2 billion smaller craters on Mars.
A newly found giant volcano on Mars erupted in "modern times" and could erupt again. It's the site of glacier ice, with implications for life and exploration.
Researchers in China and the U.S. said ancient active volcanoes on Mars were more diverse than previously known, despite a lack of plate tectonics.
Astronauts headed to Mars will live and work in confinement for more than two years. Here are ways to manage these stressful conditions.
Venus and Mars were closest on February 21 and 22. Did you miss them? Don't worry, we compiled a gallery of EarthSky community photos, showing this cosmic duo.
Planetary scientists knew there were massive buried deposits near Mars' equator, but not what they consisted of. New research found that it's buried water ice.
Here's why Mars oppositions are sometimes awesome. 2022 is a good year for Mars, but 2020 was even better. The next great Mars opposition is in 2033.
In December 2023, at the American Geophysical Union meeting in San Francisco, scientists discussed a rare "disappearance" of the solar wind at the planet Mars.
China's Zhurong rover has found polygonal wedges below the surface in Utopia Planitia on Mars. Freeze-thaw cycles of water and ice likely created the polygons.
What if the International Space Station orbited Mars? Space engineers took 3 months to plan this amazing new view of Mars, as ISS astronauts would see it.
Mars passed behind the sun from Earth yesterday, November 18, 2023. Between now and early December, data exchange between Earth and Mars spacecraft is limited.
NASA's Perseverance rover recently found odd circular rock features on Mars, similar to ones made by microbes on Earth in lakes. Evidence of life or geology?
NASA has released a new map of ice on Mars as part of the Subsurface Water Ice Mapping project. It shows all the known and suspected areas of underground ice.