A blueprint for life forms on Mars?
on June 21, 2022 at 2:56 pm
Microbes taken from surface sediment near Lost Hammer Spring, Canada, about 900 km south of the North Pole, could provide a blueprint for the kind of life forms that may once have existed, or may still exist, on Mars.
Martian meteorite upsets planet formation theory
on June 16, 2022 at 6:15 pm
A new study of an old meteorite contradicts current thinking about how rocky planets like the Earth and Mars acquire volatile elements such as hydrogen, carbon, oxygen, nitrogen and noble gases as they form.
Bacterial cellulose could enable microbial life on Mars
on June 6, 2022 at 10:12 pm
An international research team has investigated the chances of survival of kombucha cultures under Mars-like conditions. Kombucha is known as a drink, sometimes called tea fungus or mushroom tea, which is produced by fermenting sugared tea using kombucha cultures -- a symbiotic culture of bacteria and yeast. Although the simulated Martian environment destroyed the microbial ecology of the kombucha cultures, surprisingly, a cellulose-producing bacterial species survived.
Physicists explain how type of aurora on Mars is formed
on May 18, 2022 at 3:38 pm
Researchers have learned how a type of aurora on Mars is formed. The physicists report discrete aurora form through the interaction of the solar wind and the crust at Mars' southern hemisphere.
Mars' emitted energy and seasonal energy imbalance
on May 17, 2022 at 1:31 am
Seasonal imbalance between the solar energy absorbed and released by the planet Mars could be a cause of the Red Planet's dust storms, according to new research. Understanding how the system works on Mars could help scientists predict how climate change could affect Earth.
New study indicates limited water circulation late in the history of Mars
on May 13, 2022 at 2:34 pm
A research team has investigated a meteorite from Mars using neutron and X-ray tomography. The technology, which will probably be used when NASA examines samples from the Red Planet in 2030, showed that the meteorite had limited exposure to water, thus making life at that specific time and place unlikely.
Solar beats nuclear at many potential settlement sites on Mars
on April 27, 2022 at 2:05 pm
While most missions to the moon and other planets rely upon solar power, scientists have assumed that any extended surface mission involving humans would require a more reliable source of energy: nuclear power. Improvements in photovoltaics are upending this calculus. A new study concludes that a solar power system would weigh less than a nuclear system, and would be sufficient to power a colony at sites over nearly half the surface.
Two largest Mars-quakes to date recorded from planet's far side
on April 22, 2022 at 10:49 pm
The seismometer placed on Mars by NASA's InSight lander has recorded its two largest seismic events to date: a magnitude 4.2 and a magnitude 4.1 Mars-quake. The pair are the first recorded events to occur on the planet's far side from the lander and are five times stronger than the previous largest event recorded.
'Ears' for rover Perseverance's exploration of Mars
on April 5, 2022 at 4:39 pm
Scientists have built instruments to give humans eyes and a nose on Mars -- and now they are helping add ears as well.
Perseverance records the first ever sounds from Mars
on April 1, 2022 at 4:21 pm
NASA's Perseverance rover, which has been surveying the surface of Mars since February 2021, has for the first time recorded the acoustic environment of the Red Planet.
Mounds of ice in craters give new insight into Mars’ past climate
on March 29, 2022 at 6:25 pm
Newly discovered deposits of layered ice in craters scattered around Mars' southern hemisphere provide insights into how the planet's orientation controlled the planet's climate over the past 4 million years, according to a new study. The findings help scientists understand what controlled Mars' past climate, which is essential for predicting when the planet could have been habitable.
Predicting the efficiency of oxygen-evolving electrolysis on the Moon and Mars
on February 8, 2022 at 4:39 pm
Scientists have today provided more insight into the possibility of establishing a pathway to generate oxygen for humans to potentially call the Moon or Mars 'home' for extended periods of time.
How Mars lost its oceans
on February 8, 2022 at 3:53 pm
It has long been known that Mars once had oceans due in part to a protective magnetic field similar to Earth's. However, the magnetic field disappeared, and new research may finally be able to explain why. Researchers recreated conditions expected in the core of Mars billions of years ago and found that the behavior of the molten metal thought to be present likely gave rise to a brief magnetic field that was destined to fade away.
Shocked zircon find a 'one-off gift' from Mars
on February 2, 2022 at 7:30 pm
Researchers studying a Martian meteorite have found the first evidence of high-intensity damage caused by asteroid impact, in findings that have implications for understanding when conditions suitable for life may have existed on early Mars.
Liquid water beneath Martian south polar cap?
on January 25, 2022 at 5:40 pm
Scientists measured the properties of ice-brine mixtures as cold as -145 degrees Fahrenheit to help confirm that salty water likely exists between grains of ice or sediment under the ice cap at Mars' south pole. Laboratory measurements support oddly bright reflections detected by the MARSIS subsurface sounding radar aboard ESA's Mars Express orbiter.
Hope for present-day Martian groundwater dries up in new study
on January 24, 2022 at 2:05 pm
Liquid water previously detected under Mars' ice-covered south pole is probably just a dusty mirage, according to a new study of the Red Planet. The finding challenges a 2018 study that appeared to find liquid water under Mars' south polar cap.
Consistent asteroid showers rock previous thinking on Mars craters
on January 21, 2022 at 2:43 pm
New research has confirmed the frequency of asteroid collisions that formed impact craters on Mars has been consistent over the past 600 million years.
Newly discovered carbon may yield clues to ancient Mars
on January 17, 2022 at 9:55 pm
NASA's Curiosity rover landed on Mars on Aug. 6, 2012, and since then has roamed Gale Crater taking samples and sending the results back home for researchers to interpret. Analysis of carbon isotopes in sediment samples taken from half a dozen exposed locations, including an exposed cliff, leave researchers with three plausible explanations for the carbon's origin -- cosmic dust, ultraviolet degradation of carbon dioxide, or ultraviolet degradation of biologically produced methane.
Martian meteorite’s organic materials origin not biological, formed by geochemical interactions between water and rock
on January 13, 2022 at 8:13 pm
Organic molecules found in a meteorite that hurtled to Earth from Mars were synthesized during interactions between water and rocks that occurred on the Red Planet about 4 billion years ago, according to new analysis.
Earth and Mars were formed from inner Solar System material
on December 22, 2021 at 8:30 pm
Cosmochemists now present the most comprehensive comparison to date of the isotopic composition of Earth, Mars and pristine building material from the inner and outer Solar System.