Impact glass stores biodata for millions of years
(Phys.org) —Bits of plant life encapsulated in molten glass by asteroid and comet impacts millions of years ago give geologists information about climate and life forms on the ancient Earth. Scientists ...
Meteorites yield clues to Martian early atmosphere
(Phys.org) —Geologists who analyzed 40 meteorites that fell to Earth from Mars unlocked secrets of the Martian atmosphere hidden in the chemical signatures of these ancient rocks. Their study, published ...
Mars' halcyon times may have been fleeting
Cold and dry today, Mars was previously warm and wet but possibly only at intervals, a study published on Sunday suggests.
Researchers claim Mojave Crater on Mars is source of Mars rocks found on Earth
Flowing water on Mars appears likely but hard to prove
(Phys.org) —Martian experts have known since 2011 that mysterious, possibly water-related streaks appear and disappear on the planet's surface. Georgia Institute of Technology Ph.D. candidate Lujendra Ojha ...
NASA Mars spacecraft reveals a more dynamic red planet
(Phys.org) —NASA's Mars Reconnaissance Orbiter has revealed to scientists slender dark markings—possibly due to salty water - that advance seasonally down slopes surprisingly close to the Martian equator.
Ancient fresh water lake on Mars could have sustained life, Curiosity researchers show
Scientists have found evidence that there was once an ancient lake on Mars that may have been able to support life, in research published today in the journal Science.
Team uncovers secrets of Mars' birth from unique meteorite
As NASA prepares to launch a new Martian probe, a Florida State University scientist has uncovered what may be the first recognized example of ancient Martian crust.
Asteroids' close encounters with Mars
For nearly as long as astronomers have been able to observe asteroids, a question has gone unanswered: Why do the surfaces of most asteroids appear redder than meteorites—the remnants of asteroids that ...
Evidence found for granite on Mars
Researchers now have stronger evidence of granite on Mars and a new theory for how the granite – an igneous rock common on Earth—could have formed there, according to a new study. The findings suggest ...
Mars crater may actually be ancient supervolcano, study says
(Phys.org) —A research project led by Joseph R. Michalski, Senior Scientist at the Planetary Science Institute, has identified what could be a supervolcano on Mars – the first discovery of its kind.
Mars rover Curiosity finds water in first sample of planet surface
The first scoop of soil analyzed by the analytical suite in the belly of NASA's Curiosity rover reveals that fine materials on the surface of the planet contain several percent water by weight. The results ...
Researchers find phosphate in more soluble form on Mars
Research says Mars had oxygen-rich atmosphere 4000 million years ago
Differences between Martian meteorites and rocks examined by a NASA rover can be explained if Mars had an oxygen-rich atmosphere 4000 million years ago—well before the rise of atmospheric oxygen on Earth ...