Earth’s greenhouse age – Grok va Astrobiology.com A 66 million-year-old mystery behind how our planet transformed from a tropical greenhouse to the ice-capped world of today has been unravelled by
Earth’s greenhouse age – Grok va Astrobiology.com A 66 million-year-old mystery behind how our planet transformed from a tropical greenhouse to the ice-capped world of today has been unravelled by
Probability distribution functions (PDFs) for the chemical abundances used to sample the stellar properties in our dataset,with lighter colors indicating higher probability densities. Left panel: PDF of versus .
Sweeping winds of vaporized metals have been found in a massive cloud that dimmed the light of a star for nearly nine months. — NOIRLab In September 2024, a star
Main panel: comparison among ATLAS9 fluxes for the Sun calculated with suitable ODFs adopting different solar chemical mixtures: Caffau-Lodders (this work, grey line), Grevesse & Sauval (1998, blue line), Grevesse
Lake Untersee, Antarctica — Google Earth Hi Keith, The past couple of days brought low clouds, some drifting snow, and steady winds that peaked around 30 m/s (~67 mph). Today, the sun
Keith Cowing Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na’Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp veteran, (he/him) 🖖🏻 Follow on
Still from an animated view of the Sun and the Earth as seen from the Moon’s South Pole NASA source A long-standing idea in planetary science is that water-rich meteorites
A seemingly serene landscape of gas and dust is hopping with star formation behind the scenes. NASA, ESA, and K. Stapelfeldt (Jet Propulsion Laboratory); Processing: Gladys Kober (NASA/Catholic University of
NASA ROSES-2026 — Astrobiology.com In 2025, NASA’s Science Mission Directorate (SMD) released the annual Research Opportunities in Space and Earth Sciences (ROSES) solicitation in July rather than February, the traditional
The EAC-1 (top row), EAC-2 (middle row), and EAC-3 (bottom row) designs shown to relative scale. The left column shows the stowed, launch configuration for each architecture and its fit






