Emergence and complexification of metabolic proteins in three epochs. The foundations of metabolism started when a set of metallopeptides emerged through the spontaneous, thermodynamically driven selection of polymerizing amino acids
Emergence and complexification of metabolic proteins in three epochs. The foundations of metabolism started when a set of metallopeptides emerged through the spontaneous, thermodynamically driven selection of polymerizing amino acids
There’s bad news for our hopes of habitable planets existing around TRAPPIST-1, with the James Webb Space Telescope (JWST) finding no evidence for an Earth-like atmosphere on a third world
Global atmospheric C/O values for directly-imaged (blue) and transiting (purple) planets as a function of semi-major axis (left) and planet mass (right). This plot is reproduced using the data compiled
Maximum predicted emission frequency and radio flux density for known exoplanets (triangle symbols; data from ). The uncertainties on the predictions are estimated to one order of magnitude for the
Cross-correlation signal-to-noise maps of H2O, CO, Fe, and Mg in the atmosphere of WASP-121 b. The dashed vertical and horizontal white lines represent the stellar Vsys (38.12 km s−1, from
Comparison of elemental abundances from the literature and this work (filled circles) for the same stars. The y-axis shows the difference in abundance, literature – this work, plotted against the
Modeled transit spectra of GJ 1214b including haze and graphite scenarios. Planet mass 8.17 M⊕/, radius 2.742 R⊕/, and equilibrium temperature ∼596 K are adopted from R. Cloutier et al.
Artistic illustration of the internal structure of a lava planet in a cold state, showing a day‑side magma ocean overlain by a mineral atmosphere. © Romain Jean-Jacques An international research
The ≈1000 au environment of RW Aur at different wavelengths, as observed by ALMA and JWST. Panel (a): compact dust continuum emission at 1.3 mm wavelength (see Kurtovic et al.
Dr. Steven “Steve” Platnick stepped down from his role at NASA on August 8, 2025, after more than three decades of public service. Steve began his career at NASA as