A planet orbiting in the "habitable zone" of our closest neighboring star, Proxima Centauri, has recently been discovered, and the next natural question is whether or not Proxima b is "habitable".
A planet having protective ozone within the collimated beam of a Gamma Ray Burst (GRB) may suffer ozone depletion, potentially causing a mass extinction event to existing life on a planet's surface and oceans.
Proxima Centauri b
We examine the feasibility of detecting auroral emission from the potentially habitable exoplanet Proxima Centauri b.
A PhD student from the University of Leicester is helping to shed light on life on Mars by exploring similar environments on Earth -- including an underground salt mine in North Yorkshire.
As scientists continue finding evidence for life in the ocean more than 3 billion years ago, those ancient fossils pose a paradox.
Roth et al (2014a) reported evidence for plumes of water venting from a southern high latitude region on Europa - spectroscopic detection of off-limb line emission from the dissociation products of water.
We consider super-Earth sized planets which have a water mass fraction that is large enough to form an external mantle composed of high pressure water ice polymorphs and that lack a substantial H/He atmosphere.
In an effort to further our interest in understanding basic chemistry of interstellar molecules, we carry out here an extensive investigation of the stabilities of interstellar carbon chains; Cn, H2Cn, HCnN and CnX (X=N, O, Si, S, H, P, H-, N-).
Extremeophiles and Extreme Environments
A new water bear protein can protect the DNA of human cultured cells from otherwise lethal amounts of radiation damage, say a group of Japanese researchers, providing part of the answer to why tardigrades can live in deadly conditions.
A new study shows that rocks formed by the grinding together of other rocks during earthquakes are rich in trapped hydrogen -- a finding that suggests similar seismic activity on Mars may produce enough hydrogen to support life.
The interstellar medium is characterized by a rich and diverse chemistry. Many of its complex organic molecules are proposed to form through radical chemistry in icy grain mantles.
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