Tag: Search for Life

The recent sightings of puzzling unidentified aircraft in New Jersey and other states have triggered yet another round of unanswered questions — and fueled conspiracy theories. For one, the odd objects have sparked a visual public mayday and melee — one that might be mirroring elements of the ongoing unidentified anomalous phenomenon (UAP) issue, spurring talk of secretive saucer crashes by run-amok alien crewmembers with expired driver licenses. Mischaracterization of what’s seen. Public anxiety about what’s not known. Government officials seemingly not clear on what’s happening. Toss in Capitol Hill…

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In 1975, NASA’s Viking 1 spacecraft entered orbit around Mars, carrying a mission to unlock the secrets of the Red Planet. Soon, it released twin landers that drifted toward the Martian surface and eventually made history as the first American spacecraft to touch down on the world. For over six years, Viking 1 continued to orbit Mars’ Chryse Planitia region while its landers collected soil samples using robotic arms and onboard laboratories, marking a groundbreaking chapter in humanity’s exploration of the Martian environment. At the time, however, little was known…

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A leading astrobiologist melds her passion with the weighty nature of trying to grasp for answers to two key questions: Are we alone in the universe? How did life on Earth begin in the first place? Nathalie Cabrol’s book, “The Secret Life of the Universe: An Astrobiologist’s Search for the Origins and Frontiers of Life” (Scribner/Simon & Schuster), released last month, offers an insightful and reflective view of the search for life — a mind-stretching quest not only looking “out there” but also right here on Earth. Perhaps part of…

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The most common stars in the Milky Way may be even less friendly to life than previously suspected. New research suggests that red dwarf stars, stellar bodies smaller and less massive than the sun, may blast their planets with intense ultraviolet (UV) light radiation flares that severely reduce their potential habitability. A team of scientists reached this conclusion by analyzing data collected by the now-decommissioned NASA mission Galaxy Evolution Explorer (GALEX). Launched in April 2003, GALEX scanned the universe in UV light, hunting for flares from around 300,000 nearby stars…

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If life exists on the icy ocean moons of Enceladus and Europa, detectable trace molecules could survive just below their frozen surfaces.  Scientists have long theorized that both Enceladus, one of Saturn’s 146 known moons, and Europa, one of Jupiter‘s four large Galilean moons among its total 95 moons, could host vast liquid water oceans that harbor life. If this is the case, then complex organic molecules like amino acids and nucleic acids, the building blocks of life as we know it, could serve as “biosignatures” of life on the…

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