Exoplanetary science is on the verge of an unprecedented revolution. The thousands of
exoplanets discovered over the past decade have most recently been supplemented by …

The chemistry of abiotic nucleotide synthesis of RNA and DNA in the context of their
prebiotic origins on early earth is a continuing challenge. How did (or how can) the …

We perform a study of stellar flares for the 24,809 stars observed with 2 minute cadence
during the first two months of the TESS mission. Flares may erode exoplanets' atmospheres …

Life as we know it is homochiral, but the origins of biological homochirality on early Earth
remain elusive. Shallow closed-basin lakes are a plausible prebiotic environment on early …

Over the past few years, evidence has accrued that demonstrates that terrestrial
photochemical reactions could have provided numerous (proto) biomolecules with …

The search for life in the Universe is a fundamental problem of astrobiology and modern
science. The current progress in the detection of terrestrial-type exoplanets has opened a …

We advocate an integrative approach between laboratory experiments in prebiotic chemistry
and geologic, geochemical, and astrophysical observations to help assemble a robust …

We present a study of flare rates, rotation periods, and spectroscopic activity indicators of
125 single stars within 15 parsecs and with masses between 0.1 and 0.3 M⊙ observed …

Traditionally, the search for life on exoplanets has been predominantly focused on rocky
exoplanets. The recently proposed Hycean worlds have the potential to significantly expand …

Molecular oxygen (O 2) paired with a reducing gas is regarded as a promising biosignature
pair for the atmospheric characterization of terrestrial exoplanets. In circumstances when O 2 …