(a) Annual mean sea ice concentration and sea ice thickness at the end of the simulations. Red lines in TSI100 indicate the presentday winter sea ice edge (Hirahara et al.,
(a) Annual mean sea ice concentration and sea ice thickness at the end of the simulations. Red lines in TSI100 indicate the presentday winter sea ice edge (Hirahara et al.,
Sahara Dust Storm Over The Canary islands As seen by Sentinel-3 Modified Copernicus Sentinel data (2026), processed by ESA LICENCE CC BY-SA 3.0 IGO or ESA Standard Licence Earlier this
Astronomy & Telescopes Status Report NASA April 2, 2026 Habitable Worlds Observatory — NASA NASA plans to solicit proposals for carrying out U.S.-led Habitable Worlds Observatory (HWO) instrument concept studies
The mean and associated 1σ and 2σ confidence intervals around a mass-conserving Gaussian fit to the isotopic Euclidean distances (RA) of Mars and the Earth as a function of their
Proteins — large molecules with a specific biological function — are created by stringing together smaller molecular building blocks (amino acids) into chains which fold into complex 3D shapes. Credit
Artistic representation of late Hadean Earth ≈4 Ga ago, created with the AI software “Sora”. — Life The origin of life is, to the best of our knowledge, impossible to
Contributions to the peak 𝑃𝑅 from the bow shock and magnetopause at 𝜂 = 5.38018 × 108cm2s−1 for Case #1 (panel a), Case #2 (top of panel b), and Case
Image of Coffee_Cove (Sol 1466) with the locations and fields of view for the luminescence analyses (a). Comparison of the luminescence spectra taken on Hampden_River and Coffee_Cove compared to lab
Astronomers have discovered that a giant planet, WASP-189b, echoes the composition of its host star, providing the first direct evidence of a foundational concept in astrobiology. This discovery was achieved
The schematic depiction of the dual role of amino acid monomers in nonenzymatic RNA replication (left panel, blue dotted box) and prebiotic compartmentalization (right panel, green dotted box). The background






