mars, marsis, new discoveries, water on mars

Scientist Unveils Further Proof of Salty Water on Mars

It may be known as a rocky, red planet, but the evidence is mounting that salty water exists at the base of polar deposits on Mars. University of Southern Queensland‘s Professor Graziella Caprarelli is part of an international team investigating bright reflection signals below the Martian surface, first spotted in data acquired between 2010 and ...

Troy Oakes

The MARSIS spacecraft.

Layering, Not Liquid: Astronomers Explain Mars’ Watery Reflections

There is water in many places on Mars, including most of the polar ice caps — all in the frozen form. But recently, the European Space Agency detected bright reflections beneath Mars’ South Pole Layered Deposit (SPLD), a 1.4-kilometer-thick (0.87 miles) formation of relatively pure water ice’s Mars Express orbiter. Some scientists interpreted the observations ...

Troy Oakes

Mars, the red planet.

Subsurface Water on Mars Defies Expectations

A new analysis of seismic data from NASA’s Mars InSight mission has revealed a couple of surprises. The first surprise: the top 300 meters of the subsurface beneath the landing site near the Martian equator contains little or no ice. Geophysicist Vashan Wright of Scripps Institution of Oceanography at the University of California San Diego, and three co-authors published ...

Troy Oakes

Nasa's InSight Mars lander.

Clays, Not Water, Are Likely Source of Lakes on Mars

Lakes on Mars might not be lakes after all. Three studies published in the past month have cast doubt on the premise of there being subsurface lakes below the Martian south pole. Where there’s water, there’s life. That’s the case on Earth, at least, and also why scientists remain tantalized by any evidence suggesting there’s ...

Troy Oakes

The Apollinaris Patera volcamno on Mars.

Earthly Rocks Point Way to Water Hidden on Mars

A combination of a once-debunked 19th-century identification of a water-carrying iron mineral and the fact that these rocks are extremely common on Earth, suggests the existence of substantial water hidden on Mars, according to a team of geoscientists. Peter J. Heaney, professor of geosciences, said: “One of my student’s experiments was to crystalize hematite. She ...

Troy Oakes

A Martian landscape.

Escape from Mars: How water fled the red planet

Mars once had oceans but is now bone-dry, leaving many to wonder how the water was lost. University of Arizona researchers have discovered a surprisingly large amount of water in the upper atmosphere of Mars, where it is rapidly destroyed, explaining part of this Martian mystery. Shane Stone, a graduate student in the University of ...

Troy Oakes

This artist's concept depicts the early Martian environment (right) — believed to contain liquid water and a thicker atmosphere – versus the cold, dry environment seen at Mars today (left).

New Water Cycle on Mars Discovered

Approximately every two Earth years, when it is summer on the southern hemisphere of Mars, a window opens: Only there and only in this season can water vapor efficiently rise from the lower into the upper atmosphere. There, winds carry the rare gas to the North Pole. While part of the water vapor decays and ...

Troy Oakes

Mars is a dry planet.

Ancient Indian Sage Predicted Water on Mars

It has only been within the past few centuries that Western scientists started proposing there might be water on Mars. In 1784, German astronomer William Herschel even put forward the idea that there might be inhabitants on the planet similar to us. Though the idea of Martian humanoids remains in the realm of science fiction, ...

Troy Oakes

Sage Varahamihira.