1+ week, 9+ hour ago  (232+ words) Next, Zaccaria studied several well known human pathogens, such as the bacterium Klebsiella pneumoniae, which can cause pneumonia. He observed that these pathogens shrank after a simulated trip to Mars, yet survived it. In laboratory experiments, immune cells from human…...

1+ week, 2+ day ago  (203+ words) astrobiology. com Reflections of Life: Distinguishing Living from Nonliving Worlds with Complexity Metrics Detecting life beyond Earth is the primary goal of astrobiology. In this study, we showcase the effectiveness of information and complexity-based metrics for detecting signs of life…...

2+ week, 1+ day ago  (178+ words) Mars Sample Return Program planning includes a series of spacecraft staged both on the Martian surface and in low-Mars-orbit (LMO). During the transfer of samples into orbit, external spacecraft surfaces might be exposed to Mars dust carried on the sample…...

2+ week, 5+ day ago  (138+ words) The advancement of space exploration into an era of sample return missions from Mars, asteroids, and icy moons raises the potential for biological contamination either to or from Earth. There are myriad cases of microbial organisms rapidly adapting to novel…...

3+ week, 4+ day ago  (256+ words) astrobiology. com Development and Demonstration of a Modular Astrobiological Experiments (MAEx) Payload for Autonomous Biological Monitoring in Low Earth Orbit (LEO) The spaceflight environment presents unique physicochemical conditions, including microgravity, ionizing radiation, altered fluid transport, and confined engineered habitats, which…...

3+ week, 4+ day ago  (226+ words) astrobiology. com Synthetic Biology As An Empirical Tool For Evolutionary Theory Evolutionary biology has traditionally inferred process from patterns in extant organisms and the fossil record, leaving many foundational questions constrained by their historical nature. Over the past two decades,…...

1+ mon, 3+ day ago  (244+ words) Biologist, Explorers Club Fellow, ex-NASA Space Biologist and Payload integrator, Editor of NASAWatch. com and Astrobiology. com, Lapsed climber, Explorer, Synaesthete, Former Challenger Center board member " Artificial Intelligence Aided Design Of Peptides With Custom Secondary Structure Motifs And Reduced Amino…...

1+ mon, 1+ week ago  (119+ words) Time: May 12th, 9 a. m. PDT/12 p. m. EDTjoin Dr. N'ria Ros-Rocher is a CNRS research associate at Institut Pasteur. She conducts multidisciplinary research on the origin of multicellularity that elucidates how environmental factors regulate multicellular behaviors in close animal relatives. She also develops genetic…...

1+ mon, 1+ week ago  (402+ words) When an asteroid as big as'Mount Everest struck Earth 66 million years ago, it wiped out all non-avian dinosaurs and roughly a third of life on the planet. But many plants survived the devastation. In a new study publishing May 8 in…...

1+ mon, 2+ week ago  (319+ words) Can we learn about life in the deep ocean even if we don't see it? Yes we can. Thanks to environmental DNA (e DNA), we no longer need a visual sighting to know what's been in the neighborhood. Beyond the…...