Like Earth, Mars once had a strong magnetic field that shielded its thick atmosphere from the solar wind. But now only the magnetic imprint remains. What's long baffled scientists, though, is why this ...

Like Earth, Mars once had a strong magnetic field that shielded its thick atmosphere from the solar wind. But now only the magnetic imprint remains ...

In a new study, Iowa physicists propose that interplanetary magnetic field rotation could help explain why Mars became the ...

Computer simulation of a one-sided magnetic field on early Mars based on data from a study led by the University of Texas Institute for Geophysics. The study could explain the unusual magnetic imprint ...

Past work investigated the early Martian dynamo’s role in climate evolution and interior processes, focusing on its debated cessation age. While weak magnetic fields above large impact basins ...

But in the ancient past—up until about 4.12 to 4.14 billion years ago—Mars seems to have had an inner dynamo powering a planet-wide magnetic field. What shut down the Martian dynamo?

The Perseverance rover has found some intriguing samples on the red planet. Here's what they might reveal about the origins ...

A new study uses inversions of orbital gravity and magnetic field data to argue for the presence of ancient, long-lasting hydrothermal systems on Mars.

Researchers bombarded lichens with a year's worth of Martian radiation in just 5 hours — and they survived, hinting that the ...

A recent experiment has shown that certain lichen species can remain metabolically active in an environment similar to that ...

Martian dust might look harmless from millions ... orbit or on the Moon—where some protection from the planet’s magnetic field remains—a trip to Mars will leave astronauts exposed to solar ...