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The truth is out there—but identifying signs of life in space involves an intense search for biosignatures within our solar system and beyond. However, developing sensitive yet com...
Gold nanogaps distinguish mirror-image amino acids molecule by molecule, offering a compact electrical method for detecting potential signs of extraterrestrial life.
New studies show that Enceladus plume ice can separate and concentrate ocean compounds into individual grains, while microbes can grow under simulated conditions resembling its alk...
In the search for extraterrestrial life, it makes sense to first look for rocky planets with an atmosphere, like Earth. Without an atmosphere, a planet can't have surface water. Bu...
When exploring solar system bodies for signs of past or present life, scientists have mainly focused on planets that have (or had) a liquid surface similar to Earth's. However, mou...
Looking for biosignatures across the solar system requires looking for asymmetry. Amino acids, the building blocks of proteins, are famously either “left-handed” (L) or “right-hand...
We've been searching for life on Mars for a long time, but so far we've come up empty. The fundamental problem is a Catch-22 involving two of the key ingredients for life. Life as...
The technique has already been tested on samples from the Atacama Desert in Chile. (Christopher E. Carr)
Is there life elsewhere, or is Earth unique in the universe? This is one of humanity's great unanswered questions. One way to approach this mystery is to investigate how life began...
We’ve been searching for life on Mars for a long time now, but so far we’ve come up empty. The fundamental problem is a Catch-22 of two of the key ingredients for life. Life as we...
Scientists have known for a while that meteorites contain the “building blocks” of life - complex organic molecules such as amino acids, simple sugars, or even the chemical rungs o...
Planetary scientists from Freie Universität Berlin have published two new studies that indicate that a spacecraft could identify evidence of life much more easily than previously t...
There’s an active debate in the astrobiology community of where to use our best telescopes to look for our best chance of seeing alien life. That debate has been going on for decad...
When NASA's Perseverance rover reached the inner edge of Mars' Jezero Crater in September 2023, mission scientists were surprised by what they found. The geologic area, called the...
New evidence from deep in the Red Sea suggests that chemical reactions involving manganese and iron may have provided energy for life in Earth’s earliest oceans. Long before atmosp...
This summer, exoplanet science—the study of planets orbiting stars beyond our sun—took a big step forward. Reports of helium gas escaping from the atmosphere of LHS 1140b propelled...
Electrical signatures could give bioprocess engineers an earlier view of cell health, detecting apoptosis, refining harvest timing, and moving monitoring from destructive offline a...
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