Category Astronomy/Space

Ancient Bacteria might Lurk Beneath Mars’ Surface

Researchers believe ‘Conan the Bacterium’ (pictured) could survive for 280 million years on Mars, if buried.

New study finds the chances of uncovering life on Mars are better than previously expected. Scientists found that ancient bacteria could survive close to the surface on Mars much longer than previously assumed. So, if life did, in fact, evolve when the last waters flowed on Mars, it would likely still be there today — billions of years later.

When Mars’ first samples return to Earth, scientists should be on the lookout for ancient sleeping bacteria, a new study has found.

In a first-of-its-kind study, a research team, including Northwestern University’s Brian Hoffman and Ajay Sharma, found that ancient bacteria could survive close to the surface on Mars much longer than pr...

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Using Carbon-Carbon Clumping to Detect the Signature of Biotic Hydrocarbons

Using Carbon-Carbon Clumping to Tell Apart Biotic Hydrocarbons

The mystery of the origin of hydrocarbons found in extraterrestrial environment may finally be resolved, thanks to a technique based on a 13C-13C abundance analysis. By measuring the abundance of clumped 13C-13C isotope in the hydrocarbons, it can be inferred if a hydrocarbon was produced via biological processes. This could open doors to distinguishing such hydrocarbons from abiotic ones, aiding our search for extraterrestrial life.

An important signature of life is the existence of organic molecules that have originated from biological processes. The most common organic molecule found in all life forms are hydrocarbons. However, they need not be of biotic origin, i.e., produced from thermal decomposition of sedimentary organic matter or microbes...

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Why NASA is trying to Crash Land on Mars

This prototype base for SHIELD – a collapsible Mars lander that would enable a spacecraft to intentionally crash land on the Red Planet, absorbing the impact – was tested in a drop tower at JPL on Aug. 12 to replicate the impact it would encounter landing on Mars. Credit: NASA/JPL-Caltech

NASA has successfully touched down on Mars nine times, relying on cutting-edge parachutes, massive airbags, and jetpacks to set spacecraft safely on the surface. Now engineers are testing whether or not the easiest way to get to the Martian surface is to crash.

Rather than slow a spacecraft’s high-speed descent, an experimental lander design called SHIELD (Simplified High Impact Energy Landing Device) would use an accordion-like, collapsible base that acts like the crumple zone of a car and abs...

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Method for Decoding Asteroid Interiors could help Aim Asteroid-Deflecting Missions

3-D modeled illustration depicts the DART mission, and shows a boxy spacecraft with blue jets and solar panel wings approaching a bulky meteor.
Caption:MIT astronomers have found a way to determine an asteroid’s interior structure based on how its spin changes during a close encounter with Earth. The tool may improve the aim of future asteroid-targeting missions like the recent DART mission.
Credits:Credit: NASA/Johns Hopkins APL

Astronomers have found a way to determine an asteroid’s interior structure based on how its spin changes during a close encounter with Earth. NASA hit a bullseye in late September with DART, the Double Asteroid Redirection Test, which flew a spacecraft straight at the heart of a nearby asteroid. The one-way kamikaze mission smashed into the stadium-sized space rock and successfully reset the asteroid’s orbit...

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